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2m Cable Pack for US2000B/C, US3000, US5000, UP5000 Battery Models | 25mm2 Power Communication Cables Amphenol M8 100A

2m Cable Pack for US2000B/C, US3000, US5000, UP5000 Battery Models | 25mm2 Power Communication Cables Amphenol M8 100A

The Pylontech CAB-PK-PYLON is the official factory cable accessory kit for connecting a Pylontech US-series or UP-series battery stack to a DC disconnect switch or inverter. The UK version contains 4 cables in total: two 2-metre power cables (positive and negative, 25 mm², Amphenol → M8 ring lug) and two communication cables with RJ45 connectors, one of which is blue-labelled for Solis inverter compatibility. The pack supports systems up to 100 A continuous charge/discharge and is compatible with the US2000B, US2000C, US3000, US3000C, US5000 and UP5000 battery models. Important: these cables are for battery-to-inverter or battery-to-DC-disconnect connection only — not for parallel battery-to-battery links. Battery-to-battery interlink cables are supplied with each Pylontech battery module.

4 Cables
Per pack (UK)
25mm²
Power cables
100A
Continuous rating
2m
Cable length
Amphenol → M8
Termination
6 Models
Compatible
⚠ NOT for parallel battery-to-battery connection: This cable pack connects the battery stack to the DC disconnect switch or inverter. Cables for connecting one battery module to the next (interlink / parallel cables) are already included with each Pylontech battery unit. Do not use these 2m cables as battery-to-battery interlinks.
ℹ Victron / CAN-bus communication: For communication with Victron Energy systems (Multiplus, Quattro, MPPT, GX devices), a separate Victron VE.Can to CAN-bus BMS cable (Type A or Type B, 1.8m) is required alongside this pack. The included RJ45 communication cables are for RS485-based inverter brands. Always verify the correct pinout with your inverter’s documentation.
What’s in the Box — UK Version (4 Cables)
1 × 2m Positive Power Cable
25 mm² solar-grade conductor. Amphenol quick-lock connector at battery end; M8 ring lug at inverter/DC disconnect end. Rated 105°C insulation. Red or marked +.
1 × 2m Negative Power Cable
25 mm² solar-grade conductor. Amphenol quick-lock connector at battery end; M8 ring lug at inverter/DC disconnect end. Rated 105°C insulation. Black or marked −.
1 × Communication Cable (Standard)
RJ45 to RJ45. Connects the battery BMS RS485/CAN port to the inverter communication port. Standard labelling — for GivEnergy, SolarEdge, Growatt, Sungrow and most other RS485-based inverters.
1 × Communication Cable (Blue — Solis)
RJ45 to RJ45, blue-labelled. Specifically for Solis inverters when using US-type C variant batteries. Pin-out differs from the standard comms cable. Select this cable for Solis; use the standard cable for all other brands.
Battery Compatibility
Battery model Compatible Communication cables Max modules per pack
US2000B Yes 1 standard, 1 blue (Solis) 5 modules max per pack
US2000C Yes 1 standard, 1 blue (Solis) 5 modules max per pack
US3000 Yes 1 standard, 1 blue (Solis) 3 modules max per pack
US3000C Yes 1 standard, 1 blue (Solis) 3 modules max per pack
US5000 Yes 1 standard, 1 blue (Solis) 2 modules max per pack
UP5000 Yes 1 standard, 1 blue (Solis) 2 modules max per pack

Maximum module counts per pack based on 100 A system limit. For stacks exceeding these counts, purchase a second cable pack and run cables in parallel to a busbar before connecting to the inverter.

How Many Cable Packs Do I Need?
Up to 5 × US2000B/C
1 cable pack
Up to 3 × US3000/C
1 cable pack
Up to 2 × US5000 or UP5000
1 cable pack
Larger stacks (any model)
2 cable packs — run both sets in parallel to a busbar, then single run to inverter

Each 25 mm² cable is rated for 100 A continuous (120 A peak, 105°C insulation). If your system’s total charge/discharge current exceeds 100 A, use two cable packs in parallel — connecting both positive cables and both negative cables at a busbar before the final run to the inverter terminals.

Key Features
25 mm² Solar-Grade Power Cables — 100 A Continuous Rating
The two power cables use 25 mm² high-strand-count conductors with 105°C-rated insulation — well above standard cable insulation ratings. This higher insulation temperature allows the cables to carry 100 A continuously and up to 120 A peak without thermal degradation, which matches the maximum charge/discharge rating of the US5000 and UP5000 modules. The solar-grade construction also gives flexibility and UV resistance for both indoor and outdoor cable runs.
25mm²100A continuous105°C insulation
Amphenol → M8 Ring Lug — Factory-Specified Terminations
The battery end uses Amphenol quick-lock connectors — the same proprietary locking interface built into all Pylontech US and UP battery modules. These connectors provide a secure, vibration-resistant, low-resistance connection that cannot be reversed (polarity-keyed). The inverter end terminates in standard M8 ring lugs that fit the DC bus bar or inverter battery terminals found on virtually all hybrid and off-grid inverters.
Amphenol battery connectorM8 ring lug (inverter end)Polarity-keyed
Two Communication Cables — Standard and Blue (Solis)
The UK pack includes two RJ45 communication cables with different pin-outs: a standard cable for most RS485-compatible inverters (GivEnergy, Growatt, Sungrow, SolarEdge, Fronius and others), and a blue-labelled cable specifically for Solis inverters when using US-type C variant batteries. Having both in the pack means no additional comms cable purchase is needed for the vast majority of inverter brands. Always check your inverter’s BMS communication port pinout before connecting.
Standard RJ45 commsBlue cable for SolisCovers most inverter brands
NOT for Battery-to-Battery Parallel Links — Interlinks Already Supplied
This is one of the most common installation errors. These 2m cables are for battery stack to DC disconnect or inverter only. The cables that connect one Pylontech module to the next in a stack (interlink / parallel cables) are supplied inside the box with each battery unit. Using these 2m end-run cables as interlinks will result in incorrect cable lengths and potential current imbalance between modules.
Battery → inverter/DC disconnectNOT battery → battery
Official Factory Accessory — Designed for US and UP Series
The CAB-PK-PYLON is the official Pylontech cable accessory kit for the UK market, ensuring that conductor sizing, connector type, and pin-out are correct for the specific Amphenol interface on the US and UP series modules. Third-party cables with incorrect conductor sizing or non-Amphenol connectors can create connection resistance, heat build-up and BMS communication errors. Using the factory-specified cable pack also ensures warranty compliance with Pylontech’s terms.
Official Pylontech accessoryCAB-PK-PYLONWarranty-compliant
Technical Specifications
Pack Contents (UK Version)
Power cables 2 × 2m, 25 mm² (1 positive + 1 negative)
Communication cables 2 × RJ45-to-RJ45 (1 standard + 1 blue/Solis)
Total cables per pack 4
Power Cable Specification
Conductor cross-section 25 mm²
Cable length 2 metres
Battery-end connector Amphenol quick-lock (Pylontech proprietary)
Inverter-end termination M8 ring lug
Continuous current rating 100 A
Peak current rating 120 A (short duration)
Insulation temperature rating 105°C
Construction Solar-grade, flexible, UV-resistant
Communication Cable Specification
Connector type RJ45 (both ends)
Protocol supported RS485 / CAN-bus (inverter-dependent)
Blue-labelled cable For Solis inverters (US-type C variants)
System Requirements
Max current per pack 100 A continuous charge/discharge
Max US2000B or US2000C per pack 5 modules
Max US3000 or US3000C per pack 3 modules
Max US5000 or UP5000 per pack 2 modules
Larger stacks Use 2 cable packs in parallel to busbar
Compatibility
Compatible battery models US2000B, US2000C, US3000, US3000C, US5000, UP5000
NOT compatible with Parallel battery-to-battery connection (use interlink cables)
Victron systems Additional Victron VE.Can CAN-bus BMS cable required (Type A or B)
Product Reference
Part number CAB-PK-PYLON
Manufacturer Pylontech (Pylon Technologies Co., Ltd.)
Frequently Asked Questions
Do I need one cable pack or two for my system?
One cable pack handles systems up to 100 A total charge/discharge. In practice this means: up to 5 × US2000B/C, 3 × US3000/C, or 2 × US5000/UP5000 per pack. If your system exceeds these numbers, buy a second cable pack and run both sets in parallel — both positive cables and both negative cables — to a busbar, then run a single appropriately-sized cable from the busbar to the inverter terminals. Do not simply daisy-chain cables; parallel to busbar is the correct method for higher-current systems.
Why does the battery-to-battery (interlink) cable come with the battery?
Each Pylontech US and UP series battery module ships with a short parallel interconnect cable pre-sized for the specific module-to-module gap in a standard stack. These short interlinks ensure equal current distribution between modules. The CAB-PK-PYLON 2m cables are a completely separate function: they connect the top or bottom of the finished battery stack to the external system (DC disconnect switch, fuse, or inverter bus bar). The 2m length gives enough reach to accommodate most typical installation distances between the battery stack and the inverter.
Which communication cable do I use for my inverter?
For Solis inverters with US-type C variant batteries: use the blue-labelled communication cable. For all other RS485-compatible inverters (GivEnergy, Growatt, Sungrow, Fronius, SolarEdge, Huawei and others): use the standard (unlabelled) communication cable. For Victron Energy systems (Multiplus, Quattro, CerboGX, MPPT controllers): neither included cable is correct — you need a separate Victron VE.Can to CAN-bus BMS cable, Type A or Type B (1.8m), depending on your exact Pylontech model. Always verify against your inverter’s installation manual.
Are the cables suitable for outdoor installation?
Yes. The 25 mm² conductors use solar-grade insulation rated to 105°C, which is designed for both indoor and outdoor environments. If running cables outside between a battery enclosure and an inverter, it is good practice to run them through conduit to protect against mechanical damage and UV degradation, even though the cable insulation itself is UV-resistant.
Why are these 25 mm² cables if my inverter manual says 70 mm²?
This is a common question from installers. Standard 25 mm² PVC-insulated cables would struggle at 100 A, but these Pylontech cables use 105°C-rated insulation which substantially increases the current-carrying capacity compared to standard 70°C cable. The 2-metre length also means resistive losses are low. At 100 A or below on a 2m run these cables are correctly rated for the application. For systems drawing more than 100 A continuously, use two cable packs in parallel (effectively 2 × 25 mm² = 50 mm² per pole) or transition to heavier-gauge cabling after the busbar.
Related Products
Pylontech US5000 4.8kWh LFP Battery
48V LFP battery module — this cable pack is the official connection kit
Pylontech US3000C 3.5kWh LFP Battery
48V 74Ah LFP battery — up to 3 modules per cable pack
Pylontech US2000C 2.4kWh LFP Battery
48V 50Ah LFP battery — up to 5 modules per cable pack
Victron VE.Can to CAN-bus BMS Cable (Type B)
Required for Victron system communication with US5000/US3000C/US2000C
$36.44
2m Cable Pack for US2000B/C, US3000, US5000, UP5000 Battery Models | 25mm2 Power Communication Cables Amphenol M8 100A—
$36.44

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2m Cable Pack for US2000B/C, US3000, US5000, UP5000 Battery Models | 25mm2 Power Communication Cables Amphenol M8 100A - Image 2

2m Cable Pack for US2000B/C, US3000, US5000, UP5000 Battery Models | 25mm2 Power Communication Cables Amphenol M8 100A

The Pylontech CAB-PK-PYLON is the official factory cable accessory kit for connecting a Pylontech US-series or UP-series battery stack to a DC disconnect switch or inverter. The UK version contains 4 cables in total: two 2-metre power cables (positive and negative, 25 mm², Amphenol → M8 ring lug) and two communication cables with RJ45 connectors, one of which is blue-labelled for Solis inverter compatibility. The pack supports systems up to 100 A continuous charge/discharge and is compatible with the US2000B, US2000C, US3000, US3000C, US5000 and UP5000 battery models. Important: these cables are for battery-to-inverter or battery-to-DC-disconnect connection only — not for parallel battery-to-battery links. Battery-to-battery interlink cables are supplied with each Pylontech battery module.

4 Cables
Per pack (UK)
25mm²
Power cables
100A
Continuous rating
2m
Cable length
Amphenol → M8
Termination
6 Models
Compatible
⚠ NOT for parallel battery-to-battery connection: This cable pack connects the battery stack to the DC disconnect switch or inverter. Cables for connecting one battery module to the next (interlink / parallel cables) are already included with each Pylontech battery unit. Do not use these 2m cables as battery-to-battery interlinks.
ℹ Victron / CAN-bus communication: For communication with Victron Energy systems (Multiplus, Quattro, MPPT, GX devices), a separate Victron VE.Can to CAN-bus BMS cable (Type A or Type B, 1.8m) is required alongside this pack. The included RJ45 communication cables are for RS485-based inverter brands. Always verify the correct pinout with your inverter’s documentation.
What’s in the Box — UK Version (4 Cables)
1 × 2m Positive Power Cable
25 mm² solar-grade conductor. Amphenol quick-lock connector at battery end; M8 ring lug at inverter/DC disconnect end. Rated 105°C insulation. Red or marked +.
1 × 2m Negative Power Cable
25 mm² solar-grade conductor. Amphenol quick-lock connector at battery end; M8 ring lug at inverter/DC disconnect end. Rated 105°C insulation. Black or marked −.
1 × Communication Cable (Standard)
RJ45 to RJ45. Connects the battery BMS RS485/CAN port to the inverter communication port. Standard labelling — for GivEnergy, SolarEdge, Growatt, Sungrow and most other RS485-based inverters.
1 × Communication Cable (Blue — Solis)
RJ45 to RJ45, blue-labelled. Specifically for Solis inverters when using US-type C variant batteries. Pin-out differs from the standard comms cable. Select this cable for Solis; use the standard cable for all other brands.
Battery Compatibility
Battery model Compatible Communication cables Max modules per pack
US2000B Yes 1 standard, 1 blue (Solis) 5 modules max per pack
US2000C Yes 1 standard, 1 blue (Solis) 5 modules max per pack
US3000 Yes 1 standard, 1 blue (Solis) 3 modules max per pack
US3000C Yes 1 standard, 1 blue (Solis) 3 modules max per pack
US5000 Yes 1 standard, 1 blue (Solis) 2 modules max per pack
UP5000 Yes 1 standard, 1 blue (Solis) 2 modules max per pack

Maximum module counts per pack based on 100 A system limit. For stacks exceeding these counts, purchase a second cable pack and run cables in parallel to a busbar before connecting to the inverter.

How Many Cable Packs Do I Need?
Up to 5 × US2000B/C
1 cable pack
Up to 3 × US3000/C
1 cable pack
Up to 2 × US5000 or UP5000
1 cable pack
Larger stacks (any model)
2 cable packs — run both sets in parallel to a busbar, then single run to inverter

Each 25 mm² cable is rated for 100 A continuous (120 A peak, 105°C insulation). If your system’s total charge/discharge current exceeds 100 A, use two cable packs in parallel — connecting both positive cables and both negative cables at a busbar before the final run to the inverter terminals.

Key Features
25 mm² Solar-Grade Power Cables — 100 A Continuous Rating
The two power cables use 25 mm² high-strand-count conductors with 105°C-rated insulation — well above standard cable insulation ratings. This higher insulation temperature allows the cables to carry 100 A continuously and up to 120 A peak without thermal degradation, which matches the maximum charge/discharge rating of the US5000 and UP5000 modules. The solar-grade construction also gives flexibility and UV resistance for both indoor and outdoor cable runs.
25mm²100A continuous105°C insulation
Amphenol → M8 Ring Lug — Factory-Specified Terminations
The battery end uses Amphenol quick-lock connectors — the same proprietary locking interface built into all Pylontech US and UP battery modules. These connectors provide a secure, vibration-resistant, low-resistance connection that cannot be reversed (polarity-keyed). The inverter end terminates in standard M8 ring lugs that fit the DC bus bar or inverter battery terminals found on virtually all hybrid and off-grid inverters.
Amphenol battery connectorM8 ring lug (inverter end)Polarity-keyed
Two Communication Cables — Standard and Blue (Solis)
The UK pack includes two RJ45 communication cables with different pin-outs: a standard cable for most RS485-compatible inverters (GivEnergy, Growatt, Sungrow, SolarEdge, Fronius and others), and a blue-labelled cable specifically for Solis inverters when using US-type C variant batteries. Having both in the pack means no additional comms cable purchase is needed for the vast majority of inverter brands. Always check your inverter’s BMS communication port pinout before connecting.
Standard RJ45 commsBlue cable for SolisCovers most inverter brands
NOT for Battery-to-Battery Parallel Links — Interlinks Already Supplied
This is one of the most common installation errors. These 2m cables are for battery stack to DC disconnect or inverter only. The cables that connect one Pylontech module to the next in a stack (interlink / parallel cables) are supplied inside the box with each battery unit. Using these 2m end-run cables as interlinks will result in incorrect cable lengths and potential current imbalance between modules.
Battery → inverter/DC disconnectNOT battery → battery
Official Factory Accessory — Designed for US and UP Series
The CAB-PK-PYLON is the official Pylontech cable accessory kit for the UK market, ensuring that conductor sizing, connector type, and pin-out are correct for the specific Amphenol interface on the US and UP series modules. Third-party cables with incorrect conductor sizing or non-Amphenol connectors can create connection resistance, heat build-up and BMS communication errors. Using the factory-specified cable pack also ensures warranty compliance with Pylontech’s terms.
Official Pylontech accessoryCAB-PK-PYLONWarranty-compliant
Technical Specifications
Pack Contents (UK Version)
Power cables 2 × 2m, 25 mm² (1 positive + 1 negative)
Communication cables 2 × RJ45-to-RJ45 (1 standard + 1 blue/Solis)
Total cables per pack 4
Power Cable Specification
Conductor cross-section 25 mm²
Cable length 2 metres
Battery-end connector Amphenol quick-lock (Pylontech proprietary)
Inverter-end termination M8 ring lug
Continuous current rating 100 A
Peak current rating 120 A (short duration)
Insulation temperature rating 105°C
Construction Solar-grade, flexible, UV-resistant
Communication Cable Specification
Connector type RJ45 (both ends)
Protocol supported RS485 / CAN-bus (inverter-dependent)
Blue-labelled cable For Solis inverters (US-type C variants)
System Requirements
Max current per pack 100 A continuous charge/discharge
Max US2000B or US2000C per pack 5 modules
Max US3000 or US3000C per pack 3 modules
Max US5000 or UP5000 per pack 2 modules
Larger stacks Use 2 cable packs in parallel to busbar
Compatibility
Compatible battery models US2000B, US2000C, US3000, US3000C, US5000, UP5000
NOT compatible with Parallel battery-to-battery connection (use interlink cables)
Victron systems Additional Victron VE.Can CAN-bus BMS cable required (Type A or B)
Product Reference
Part number CAB-PK-PYLON
Manufacturer Pylontech (Pylon Technologies Co., Ltd.)
Frequently Asked Questions
Do I need one cable pack or two for my system?
One cable pack handles systems up to 100 A total charge/discharge. In practice this means: up to 5 × US2000B/C, 3 × US3000/C, or 2 × US5000/UP5000 per pack. If your system exceeds these numbers, buy a second cable pack and run both sets in parallel — both positive cables and both negative cables — to a busbar, then run a single appropriately-sized cable from the busbar to the inverter terminals. Do not simply daisy-chain cables; parallel to busbar is the correct method for higher-current systems.
Why does the battery-to-battery (interlink) cable come with the battery?
Each Pylontech US and UP series battery module ships with a short parallel interconnect cable pre-sized for the specific module-to-module gap in a standard stack. These short interlinks ensure equal current distribution between modules. The CAB-PK-PYLON 2m cables are a completely separate function: they connect the top or bottom of the finished battery stack to the external system (DC disconnect switch, fuse, or inverter bus bar). The 2m length gives enough reach to accommodate most typical installation distances between the battery stack and the inverter.
Which communication cable do I use for my inverter?
For Solis inverters with US-type C variant batteries: use the blue-labelled communication cable. For all other RS485-compatible inverters (GivEnergy, Growatt, Sungrow, Fronius, SolarEdge, Huawei and others): use the standard (unlabelled) communication cable. For Victron Energy systems (Multiplus, Quattro, CerboGX, MPPT controllers): neither included cable is correct — you need a separate Victron VE.Can to CAN-bus BMS cable, Type A or Type B (1.8m), depending on your exact Pylontech model. Always verify against your inverter’s installation manual.
Are the cables suitable for outdoor installation?
Yes. The 25 mm² conductors use solar-grade insulation rated to 105°C, which is designed for both indoor and outdoor environments. If running cables outside between a battery enclosure and an inverter, it is good practice to run them through conduit to protect against mechanical damage and UV degradation, even though the cable insulation itself is UV-resistant.
Why are these 25 mm² cables if my inverter manual says 70 mm²?
This is a common question from installers. Standard 25 mm² PVC-insulated cables would struggle at 100 A, but these Pylontech cables use 105°C-rated insulation which substantially increases the current-carrying capacity compared to standard 70°C cable. The 2-metre length also means resistive losses are low. At 100 A or below on a 2m run these cables are correctly rated for the application. For systems drawing more than 100 A continuously, use two cable packs in parallel (effectively 2 × 25 mm² = 50 mm² per pole) or transition to heavier-gauge cabling after the busbar.
Related Products
Pylontech US5000 4.8kWh LFP Battery
48V LFP battery module — this cable pack is the official connection kit
Pylontech US3000C 3.5kWh LFP Battery
48V 74Ah LFP battery — up to 3 modules per cable pack
Pylontech US2000C 2.4kWh LFP Battery
48V 50Ah LFP battery — up to 5 modules per cable pack
Victron VE.Can to CAN-bus BMS Cable (Type B)
Required for Victron system communication with US5000/US3000C/US2000C

Product Information

Shipping & Returns

Description

The Pylontech CAB-PK-PYLON is the official factory cable accessory kit for connecting a Pylontech US-series or UP-series battery stack to a DC disconnect switch or inverter. The UK version contains 4 cables in total: two 2-metre power cables (positive and negative, 25 mm², Amphenol → M8 ring lug) and two communication cables with RJ45 connectors, one of which is blue-labelled for Solis inverter compatibility. The pack supports systems up to 100 A continuous charge/discharge and is compatible with the US2000B, US2000C, US3000, US3000C, US5000 and UP5000 battery models. Important: these cables are for battery-to-inverter or battery-to-DC-disconnect connection only — not for parallel battery-to-battery links. Battery-to-battery interlink cables are supplied with each Pylontech battery module.

4 Cables
Per pack (UK)
25mm²
Power cables
100A
Continuous rating
2m
Cable length
Amphenol → M8
Termination
6 Models
Compatible
⚠ NOT for parallel battery-to-battery connection: This cable pack connects the battery stack to the DC disconnect switch or inverter. Cables for connecting one battery module to the next (interlink / parallel cables) are already included with each Pylontech battery unit. Do not use these 2m cables as battery-to-battery interlinks.
ℹ Victron / CAN-bus communication: For communication with Victron Energy systems (Multiplus, Quattro, MPPT, GX devices), a separate Victron VE.Can to CAN-bus BMS cable (Type A or Type B, 1.8m) is required alongside this pack. The included RJ45 communication cables are for RS485-based inverter brands. Always verify the correct pinout with your inverter’s documentation.
What’s in the Box — UK Version (4 Cables)
1 × 2m Positive Power Cable
25 mm² solar-grade conductor. Amphenol quick-lock connector at battery end; M8 ring lug at inverter/DC disconnect end. Rated 105°C insulation. Red or marked +.
1 × 2m Negative Power Cable
25 mm² solar-grade conductor. Amphenol quick-lock connector at battery end; M8 ring lug at inverter/DC disconnect end. Rated 105°C insulation. Black or marked −.
1 × Communication Cable (Standard)
RJ45 to RJ45. Connects the battery BMS RS485/CAN port to the inverter communication port. Standard labelling — for GivEnergy, SolarEdge, Growatt, Sungrow and most other RS485-based inverters.
1 × Communication Cable (Blue — Solis)
RJ45 to RJ45, blue-labelled. Specifically for Solis inverters when using US-type C variant batteries. Pin-out differs from the standard comms cable. Select this cable for Solis; use the standard cable for all other brands.
Battery Compatibility
Battery model Compatible Communication cables Max modules per pack
US2000B Yes 1 standard, 1 blue (Solis) 5 modules max per pack
US2000C Yes 1 standard, 1 blue (Solis) 5 modules max per pack
US3000 Yes 1 standard, 1 blue (Solis) 3 modules max per pack
US3000C Yes 1 standard, 1 blue (Solis) 3 modules max per pack
US5000 Yes 1 standard, 1 blue (Solis) 2 modules max per pack
UP5000 Yes 1 standard, 1 blue (Solis) 2 modules max per pack

Maximum module counts per pack based on 100 A system limit. For stacks exceeding these counts, purchase a second cable pack and run cables in parallel to a busbar before connecting to the inverter.

How Many Cable Packs Do I Need?
Up to 5 × US2000B/C
1 cable pack
Up to 3 × US3000/C
1 cable pack
Up to 2 × US5000 or UP5000
1 cable pack
Larger stacks (any model)
2 cable packs — run both sets in parallel to a busbar, then single run to inverter

Each 25 mm² cable is rated for 100 A continuous (120 A peak, 105°C insulation). If your system’s total charge/discharge current exceeds 100 A, use two cable packs in parallel — connecting both positive cables and both negative cables at a busbar before the final run to the inverter terminals.

Key Features
25 mm² Solar-Grade Power Cables — 100 A Continuous Rating
The two power cables use 25 mm² high-strand-count conductors with 105°C-rated insulation — well above standard cable insulation ratings. This higher insulation temperature allows the cables to carry 100 A continuously and up to 120 A peak without thermal degradation, which matches the maximum charge/discharge rating of the US5000 and UP5000 modules. The solar-grade construction also gives flexibility and UV resistance for both indoor and outdoor cable runs.
25mm²100A continuous105°C insulation
Amphenol → M8 Ring Lug — Factory-Specified Terminations
The battery end uses Amphenol quick-lock connectors — the same proprietary locking interface built into all Pylontech US and UP battery modules. These connectors provide a secure, vibration-resistant, low-resistance connection that cannot be reversed (polarity-keyed). The inverter end terminates in standard M8 ring lugs that fit the DC bus bar or inverter battery terminals found on virtually all hybrid and off-grid inverters.
Amphenol battery connectorM8 ring lug (inverter end)Polarity-keyed
Two Communication Cables — Standard and Blue (Solis)
The UK pack includes two RJ45 communication cables with different pin-outs: a standard cable for most RS485-compatible inverters (GivEnergy, Growatt, Sungrow, SolarEdge, Fronius and others), and a blue-labelled cable specifically for Solis inverters when using US-type C variant batteries. Having both in the pack means no additional comms cable purchase is needed for the vast majority of inverter brands. Always check your inverter’s BMS communication port pinout before connecting.
Standard RJ45 commsBlue cable for SolisCovers most inverter brands
NOT for Battery-to-Battery Parallel Links — Interlinks Already Supplied
This is one of the most common installation errors. These 2m cables are for battery stack to DC disconnect or inverter only. The cables that connect one Pylontech module to the next in a stack (interlink / parallel cables) are supplied inside the box with each battery unit. Using these 2m end-run cables as interlinks will result in incorrect cable lengths and potential current imbalance between modules.
Battery → inverter/DC disconnectNOT battery → battery
Official Factory Accessory — Designed for US and UP Series
The CAB-PK-PYLON is the official Pylontech cable accessory kit for the UK market, ensuring that conductor sizing, connector type, and pin-out are correct for the specific Amphenol interface on the US and UP series modules. Third-party cables with incorrect conductor sizing or non-Amphenol connectors can create connection resistance, heat build-up and BMS communication errors. Using the factory-specified cable pack also ensures warranty compliance with Pylontech’s terms.
Official Pylontech accessoryCAB-PK-PYLONWarranty-compliant
Technical Specifications
Pack Contents (UK Version)
Power cables 2 × 2m, 25 mm² (1 positive + 1 negative)
Communication cables 2 × RJ45-to-RJ45 (1 standard + 1 blue/Solis)
Total cables per pack 4
Power Cable Specification
Conductor cross-section 25 mm²
Cable length 2 metres
Battery-end connector Amphenol quick-lock (Pylontech proprietary)
Inverter-end termination M8 ring lug
Continuous current rating 100 A
Peak current rating 120 A (short duration)
Insulation temperature rating 105°C
Construction Solar-grade, flexible, UV-resistant
Communication Cable Specification
Connector type RJ45 (both ends)
Protocol supported RS485 / CAN-bus (inverter-dependent)
Blue-labelled cable For Solis inverters (US-type C variants)
System Requirements
Max current per pack 100 A continuous charge/discharge
Max US2000B or US2000C per pack 5 modules
Max US3000 or US3000C per pack 3 modules
Max US5000 or UP5000 per pack 2 modules
Larger stacks Use 2 cable packs in parallel to busbar
Compatibility
Compatible battery models US2000B, US2000C, US3000, US3000C, US5000, UP5000
NOT compatible with Parallel battery-to-battery connection (use interlink cables)
Victron systems Additional Victron VE.Can CAN-bus BMS cable required (Type A or B)
Product Reference
Part number CAB-PK-PYLON
Manufacturer Pylontech (Pylon Technologies Co., Ltd.)
Frequently Asked Questions
Do I need one cable pack or two for my system?
One cable pack handles systems up to 100 A total charge/discharge. In practice this means: up to 5 × US2000B/C, 3 × US3000/C, or 2 × US5000/UP5000 per pack. If your system exceeds these numbers, buy a second cable pack and run both sets in parallel — both positive cables and both negative cables — to a busbar, then run a single appropriately-sized cable from the busbar to the inverter terminals. Do not simply daisy-chain cables; parallel to busbar is the correct method for higher-current systems.
Why does the battery-to-battery (interlink) cable come with the battery?
Each Pylontech US and UP series battery module ships with a short parallel interconnect cable pre-sized for the specific module-to-module gap in a standard stack. These short interlinks ensure equal current distribution between modules. The CAB-PK-PYLON 2m cables are a completely separate function: they connect the top or bottom of the finished battery stack to the external system (DC disconnect switch, fuse, or inverter bus bar). The 2m length gives enough reach to accommodate most typical installation distances between the battery stack and the inverter.
Which communication cable do I use for my inverter?
For Solis inverters with US-type C variant batteries: use the blue-labelled communication cable. For all other RS485-compatible inverters (GivEnergy, Growatt, Sungrow, Fronius, SolarEdge, Huawei and others): use the standard (unlabelled) communication cable. For Victron Energy systems (Multiplus, Quattro, CerboGX, MPPT controllers): neither included cable is correct — you need a separate Victron VE.Can to CAN-bus BMS cable, Type A or Type B (1.8m), depending on your exact Pylontech model. Always verify against your inverter’s installation manual.
Are the cables suitable for outdoor installation?
Yes. The 25 mm² conductors use solar-grade insulation rated to 105°C, which is designed for both indoor and outdoor environments. If running cables outside between a battery enclosure and an inverter, it is good practice to run them through conduit to protect against mechanical damage and UV degradation, even though the cable insulation itself is UV-resistant.
Why are these 25 mm² cables if my inverter manual says 70 mm²?
This is a common question from installers. Standard 25 mm² PVC-insulated cables would struggle at 100 A, but these Pylontech cables use 105°C-rated insulation which substantially increases the current-carrying capacity compared to standard 70°C cable. The 2-metre length also means resistive losses are low. At 100 A or below on a 2m run these cables are correctly rated for the application. For systems drawing more than 100 A continuously, use two cable packs in parallel (effectively 2 × 25 mm² = 50 mm² per pole) or transition to heavier-gauge cabling after the busbar.
Related Products
Pylontech US5000 4.8kWh LFP Battery
48V LFP battery module — this cable pack is the official connection kit
Pylontech US3000C 3.5kWh LFP Battery
48V 74Ah LFP battery — up to 3 modules per cable pack
Pylontech US2000C 2.4kWh LFP Battery
48V 50Ah LFP battery — up to 5 modules per cable pack
Victron VE.Can to CAN-bus BMS Cable (Type B)
Required for Victron system communication with US5000/US3000C/US2000C