ENGO ECB8-230 Wired Underfloor Heating Control Box – 8 Zones, 230V, Pump & Boiler Module, DIN Rail
ENGO ECB8-230 Wired Underfloor Heating Control Box – 8 Zones, 230V, Pump & Boiler Module, DIN Rail
The ENGO ECB8-230 is a wired 8-zone underfloor heating control box (wiring centre) with integrated pump and boiler control modules. Designed for 230V wired thermostat installations, it controls up to 8 independent heating zones, manages the circulation pump automatically, and triggers the heat source via a volt-free relay — all from a compact DIN-rail or surface-mount housing. It accepts up to 50 actuators across all zones without additional relay modules.
Why Choose the ENGO ECB8-230?
Control up to 8 separate heating circuits, each with its own thermostat — room-by-room temperature management.
230V pump output starts 3 minutes after any zone calls for heat and stops when all zones are satisfied — no additional relay needed.
NO/COM/NC relay output controls any gas, oil, LPG, or electric heat source — compatible with all standard boilers.
The dual-socket zone outputs can drive up to 50 NC actuators at 2 W each without additional relay modules.
Plug-in, removable wiring terminals make installation, replacement, and servicing quick and clean.
Slim housing fits standard DIN rail in a consumer unit or can be surface-mounted in a manifold cabinet.
Built-in overrun logic delays the pump start and boiler trigger to protect the system and prevent short cycling.
Individual LED indicators for each zone show at a glance which rooms are calling for heat.
Suitable For
About the ECB8-230
The ECB8-230 is the central wiring centre for a complete 8-zone wired UFH control system. It accepts 230V AC wired room thermostats on each of its 8 zone inputs. When a thermostat calls for heat, the corresponding zone output activates its NC thermoelectric actuators (e.g. ENGO E30NC-230), the pump output starts after a 3-minute delay, and the boiler output signals the heat source via its volt-free relay.
Each of the 8 zones accepts either a 230V AC wired thermostat (with SL control output) or a battery-powered thermostat with a volt-free COM/NO contact. This means you can mix thermostat types across zones in the same installation — for example, 230V stats in main rooms and battery stats in locations where cable runs are impractical.
Each zone has a dedicated dual-socket output for actuators. The dual socket allows two actuators to be connected per connector without any wiring adaptors, and up to 6 actuators per zone can be run directly (6 × 2 W = 12 W per zone within the zone rating). For zones with more than 6 actuators, use an ENGO ERM-12A relay module to extend capacity.
The boiler output supports NO, COM, and NC configurations, giving full flexibility to match whatever connection type your heat source requires. The pump output is 230V AC with a maximum 3A load — sufficient for most domestic central heating pumps.
Key Features
- Controls 8 independent heating zones
- Designed for wired NC thermoelectric actuators (e.g. E30NC-230)
- 230V AC zone outputs for actuators — dual socket per zone
- Accepts 230V wired or battery-powered (volt-free) thermostats
- Integrated 230V pump output — max 3A load
- 3-minute pump start delay after heat demand received
- Volt-free boiler relay output: NO/COM/NC
- Supports up to 50 actuators at 2 W across all 8 zones without additional relays
- Removable, plug-in terminal blocks for easy wiring
- DIN rail mount or flat surface mount
- Screw-on cover and compact slim housing
- LED indicators for each zone (active demand)
- Red LED power indicator
- 6.3A ceramic cartridge fuse (5×20 mm, slow-blow)
- For indoor dry use only
- EMC, LVD, and RoHS compliant
- Upgrade path to ZigBee smart control: pair with ECB62-ZB or add ENGO ZigBee thermostats
Technical Specifications
| Specification | Value |
|---|---|
| Model | ECB8-230 |
| Power Supply | 230V AC / 50Hz |
| Number of Zones | 8 |
| Zone Output Voltage | 230V AC (for NC actuators) |
| Max Actuators (total) | 50 × 2W (without additional relay) |
| Actuator Type | NC (Normally Closed) only |
| Pump Output | 230V AC, max 3A |
| Pump Start Delay | 3 minutes after first heat demand |
| Boiler Output | Volt-free NO/COM/NC relay |
| Zone Input Types | 230V AC thermostat or battery (COM/NO volt-free) |
| Fuse | 6.3A ceramic tube, 5×20 mm slow-blow |
| Mounting | DIN rail or flat surface |
| Terminal Blocks | Removable / plug-in |
| Enclosure | Indoor dry use only |
| Compliance | EMC 2014/30/EU, LVD 2014/35/EU, RoHS 2011/65/EU |
Installation Notes
Installation must be carried out by a qualified person in accordance with BS 7671. Disconnect 230V power before making any wiring connections.
- Mount on DIN rail or flat surface in a manifold cabinet or consumer unit enclosure
- Connect 230V L and N supply to the power input terminals
- Wire each zone thermostat to the corresponding zone input (SL for 230V stats; COM/NO for battery stats)
- Plug actuator leads into the dual zone output sockets
- Connect circulation pump to the 230V pump output (max 3A)
- Connect boiler thermostat input to the volt-free COM/NO/NC boiler output
- Replace the 6.3A fuse only with an equivalent rated ceramic slow-blow type
- For zones requiring more than 6 actuators, add an ENGO ERM-12A relay
Frequently Asked Questions
What type of thermostat does this work with?
The ECB8-230 works with 230V AC wired room thermostats on its SL zone inputs, and also with battery-powered or volt-free thermostats using the COM/NO input. This means you can mix thermostat types across zones in the same system.
Can I use NO actuators with this box?
No — the ECB8-230 is designed for NC (normally closed) actuators only. The 230V zone output activates to open the valve. Using NO actuators would result in valves being open at all times when no heat is demanded.
Do I need a separate relay for my pump?
No — the pump output is built in, rated at 230V/3A. Just wire your circulation pump directly to the pump output terminals.
What if I need more than 8 zones?
For 8 zones with a mix of wireless and wired zones, consider the ECB62-ZB (6 ZigBee wireless + 2 wired). For more than 8 wired zones, use multiple ECB8-230 units with a common boiler/pump output.
Is this compatible with smart thermostats?
Yes — any thermostat with a 230V AC SL output (such as ENGO wired thermostats) connects directly. For wireless smart control, pair with ENGO ZigBee thermostats and the EGATE-PRO gateway, or use the ECB62-ZB wiring centre instead for native ZigBee integration.
What's in the Box
- 1× ECB8-230 wired 8-zone control box
- Removable terminal block connectors (pre-fitted)
- Screw-on cover
- Quick installation guide
Installation by qualified person per BS 7671. NC actuators only. For ZigBee smart zone control see ECB62-ZB. Compatible actuator: E30NC-230.
Original: $82.33
-65%$82.33
$28.82More Images
ENGO ECB8-230 Wired Underfloor Heating Control Box – 8 Zones, 230V, Pump & Boiler Module, DIN Rail
The ENGO ECB8-230 is a wired 8-zone underfloor heating control box (wiring centre) with integrated pump and boiler control modules. Designed for 230V wired thermostat installations, it controls up to 8 independent heating zones, manages the circulation pump automatically, and triggers the heat source via a volt-free relay — all from a compact DIN-rail or surface-mount housing. It accepts up to 50 actuators across all zones without additional relay modules.
Why Choose the ENGO ECB8-230?
Control up to 8 separate heating circuits, each with its own thermostat — room-by-room temperature management.
230V pump output starts 3 minutes after any zone calls for heat and stops when all zones are satisfied — no additional relay needed.
NO/COM/NC relay output controls any gas, oil, LPG, or electric heat source — compatible with all standard boilers.
The dual-socket zone outputs can drive up to 50 NC actuators at 2 W each without additional relay modules.
Plug-in, removable wiring terminals make installation, replacement, and servicing quick and clean.
Slim housing fits standard DIN rail in a consumer unit or can be surface-mounted in a manifold cabinet.
Built-in overrun logic delays the pump start and boiler trigger to protect the system and prevent short cycling.
Individual LED indicators for each zone show at a glance which rooms are calling for heat.
Suitable For
About the ECB8-230
The ECB8-230 is the central wiring centre for a complete 8-zone wired UFH control system. It accepts 230V AC wired room thermostats on each of its 8 zone inputs. When a thermostat calls for heat, the corresponding zone output activates its NC thermoelectric actuators (e.g. ENGO E30NC-230), the pump output starts after a 3-minute delay, and the boiler output signals the heat source via its volt-free relay.
Each of the 8 zones accepts either a 230V AC wired thermostat (with SL control output) or a battery-powered thermostat with a volt-free COM/NO contact. This means you can mix thermostat types across zones in the same installation — for example, 230V stats in main rooms and battery stats in locations where cable runs are impractical.
Each zone has a dedicated dual-socket output for actuators. The dual socket allows two actuators to be connected per connector without any wiring adaptors, and up to 6 actuators per zone can be run directly (6 × 2 W = 12 W per zone within the zone rating). For zones with more than 6 actuators, use an ENGO ERM-12A relay module to extend capacity.
The boiler output supports NO, COM, and NC configurations, giving full flexibility to match whatever connection type your heat source requires. The pump output is 230V AC with a maximum 3A load — sufficient for most domestic central heating pumps.
Key Features
- Controls 8 independent heating zones
- Designed for wired NC thermoelectric actuators (e.g. E30NC-230)
- 230V AC zone outputs for actuators — dual socket per zone
- Accepts 230V wired or battery-powered (volt-free) thermostats
- Integrated 230V pump output — max 3A load
- 3-minute pump start delay after heat demand received
- Volt-free boiler relay output: NO/COM/NC
- Supports up to 50 actuators at 2 W across all 8 zones without additional relays
- Removable, plug-in terminal blocks for easy wiring
- DIN rail mount or flat surface mount
- Screw-on cover and compact slim housing
- LED indicators for each zone (active demand)
- Red LED power indicator
- 6.3A ceramic cartridge fuse (5×20 mm, slow-blow)
- For indoor dry use only
- EMC, LVD, and RoHS compliant
- Upgrade path to ZigBee smart control: pair with ECB62-ZB or add ENGO ZigBee thermostats
Technical Specifications
| Specification | Value |
|---|---|
| Model | ECB8-230 |
| Power Supply | 230V AC / 50Hz |
| Number of Zones | 8 |
| Zone Output Voltage | 230V AC (for NC actuators) |
| Max Actuators (total) | 50 × 2W (without additional relay) |
| Actuator Type | NC (Normally Closed) only |
| Pump Output | 230V AC, max 3A |
| Pump Start Delay | 3 minutes after first heat demand |
| Boiler Output | Volt-free NO/COM/NC relay |
| Zone Input Types | 230V AC thermostat or battery (COM/NO volt-free) |
| Fuse | 6.3A ceramic tube, 5×20 mm slow-blow |
| Mounting | DIN rail or flat surface |
| Terminal Blocks | Removable / plug-in |
| Enclosure | Indoor dry use only |
| Compliance | EMC 2014/30/EU, LVD 2014/35/EU, RoHS 2011/65/EU |
Installation Notes
Installation must be carried out by a qualified person in accordance with BS 7671. Disconnect 230V power before making any wiring connections.
- Mount on DIN rail or flat surface in a manifold cabinet or consumer unit enclosure
- Connect 230V L and N supply to the power input terminals
- Wire each zone thermostat to the corresponding zone input (SL for 230V stats; COM/NO for battery stats)
- Plug actuator leads into the dual zone output sockets
- Connect circulation pump to the 230V pump output (max 3A)
- Connect boiler thermostat input to the volt-free COM/NO/NC boiler output
- Replace the 6.3A fuse only with an equivalent rated ceramic slow-blow type
- For zones requiring more than 6 actuators, add an ENGO ERM-12A relay
Frequently Asked Questions
What type of thermostat does this work with?
The ECB8-230 works with 230V AC wired room thermostats on its SL zone inputs, and also with battery-powered or volt-free thermostats using the COM/NO input. This means you can mix thermostat types across zones in the same system.
Can I use NO actuators with this box?
No — the ECB8-230 is designed for NC (normally closed) actuators only. The 230V zone output activates to open the valve. Using NO actuators would result in valves being open at all times when no heat is demanded.
Do I need a separate relay for my pump?
No — the pump output is built in, rated at 230V/3A. Just wire your circulation pump directly to the pump output terminals.
What if I need more than 8 zones?
For 8 zones with a mix of wireless and wired zones, consider the ECB62-ZB (6 ZigBee wireless + 2 wired). For more than 8 wired zones, use multiple ECB8-230 units with a common boiler/pump output.
Is this compatible with smart thermostats?
Yes — any thermostat with a 230V AC SL output (such as ENGO wired thermostats) connects directly. For wireless smart control, pair with ENGO ZigBee thermostats and the EGATE-PRO gateway, or use the ECB62-ZB wiring centre instead for native ZigBee integration.
What's in the Box
- 1× ECB8-230 wired 8-zone control box
- Removable terminal block connectors (pre-fitted)
- Screw-on cover
- Quick installation guide
Installation by qualified person per BS 7671. NC actuators only. For ZigBee smart zone control see ECB62-ZB. Compatible actuator: E30NC-230.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The ENGO ECB8-230 is a wired 8-zone underfloor heating control box (wiring centre) with integrated pump and boiler control modules. Designed for 230V wired thermostat installations, it controls up to 8 independent heating zones, manages the circulation pump automatically, and triggers the heat source via a volt-free relay — all from a compact DIN-rail or surface-mount housing. It accepts up to 50 actuators across all zones without additional relay modules.
Why Choose the ENGO ECB8-230?
Control up to 8 separate heating circuits, each with its own thermostat — room-by-room temperature management.
230V pump output starts 3 minutes after any zone calls for heat and stops when all zones are satisfied — no additional relay needed.
NO/COM/NC relay output controls any gas, oil, LPG, or electric heat source — compatible with all standard boilers.
The dual-socket zone outputs can drive up to 50 NC actuators at 2 W each without additional relay modules.
Plug-in, removable wiring terminals make installation, replacement, and servicing quick and clean.
Slim housing fits standard DIN rail in a consumer unit or can be surface-mounted in a manifold cabinet.
Built-in overrun logic delays the pump start and boiler trigger to protect the system and prevent short cycling.
Individual LED indicators for each zone show at a glance which rooms are calling for heat.
Suitable For
About the ECB8-230
The ECB8-230 is the central wiring centre for a complete 8-zone wired UFH control system. It accepts 230V AC wired room thermostats on each of its 8 zone inputs. When a thermostat calls for heat, the corresponding zone output activates its NC thermoelectric actuators (e.g. ENGO E30NC-230), the pump output starts after a 3-minute delay, and the boiler output signals the heat source via its volt-free relay.
Each of the 8 zones accepts either a 230V AC wired thermostat (with SL control output) or a battery-powered thermostat with a volt-free COM/NO contact. This means you can mix thermostat types across zones in the same installation — for example, 230V stats in main rooms and battery stats in locations where cable runs are impractical.
Each zone has a dedicated dual-socket output for actuators. The dual socket allows two actuators to be connected per connector without any wiring adaptors, and up to 6 actuators per zone can be run directly (6 × 2 W = 12 W per zone within the zone rating). For zones with more than 6 actuators, use an ENGO ERM-12A relay module to extend capacity.
The boiler output supports NO, COM, and NC configurations, giving full flexibility to match whatever connection type your heat source requires. The pump output is 230V AC with a maximum 3A load — sufficient for most domestic central heating pumps.
Key Features
- Controls 8 independent heating zones
- Designed for wired NC thermoelectric actuators (e.g. E30NC-230)
- 230V AC zone outputs for actuators — dual socket per zone
- Accepts 230V wired or battery-powered (volt-free) thermostats
- Integrated 230V pump output — max 3A load
- 3-minute pump start delay after heat demand received
- Volt-free boiler relay output: NO/COM/NC
- Supports up to 50 actuators at 2 W across all 8 zones without additional relays
- Removable, plug-in terminal blocks for easy wiring
- DIN rail mount or flat surface mount
- Screw-on cover and compact slim housing
- LED indicators for each zone (active demand)
- Red LED power indicator
- 6.3A ceramic cartridge fuse (5×20 mm, slow-blow)
- For indoor dry use only
- EMC, LVD, and RoHS compliant
- Upgrade path to ZigBee smart control: pair with ECB62-ZB or add ENGO ZigBee thermostats
Technical Specifications
| Specification | Value |
|---|---|
| Model | ECB8-230 |
| Power Supply | 230V AC / 50Hz |
| Number of Zones | 8 |
| Zone Output Voltage | 230V AC (for NC actuators) |
| Max Actuators (total) | 50 × 2W (without additional relay) |
| Actuator Type | NC (Normally Closed) only |
| Pump Output | 230V AC, max 3A |
| Pump Start Delay | 3 minutes after first heat demand |
| Boiler Output | Volt-free NO/COM/NC relay |
| Zone Input Types | 230V AC thermostat or battery (COM/NO volt-free) |
| Fuse | 6.3A ceramic tube, 5×20 mm slow-blow |
| Mounting | DIN rail or flat surface |
| Terminal Blocks | Removable / plug-in |
| Enclosure | Indoor dry use only |
| Compliance | EMC 2014/30/EU, LVD 2014/35/EU, RoHS 2011/65/EU |
Installation Notes
Installation must be carried out by a qualified person in accordance with BS 7671. Disconnect 230V power before making any wiring connections.
- Mount on DIN rail or flat surface in a manifold cabinet or consumer unit enclosure
- Connect 230V L and N supply to the power input terminals
- Wire each zone thermostat to the corresponding zone input (SL for 230V stats; COM/NO for battery stats)
- Plug actuator leads into the dual zone output sockets
- Connect circulation pump to the 230V pump output (max 3A)
- Connect boiler thermostat input to the volt-free COM/NO/NC boiler output
- Replace the 6.3A fuse only with an equivalent rated ceramic slow-blow type
- For zones requiring more than 6 actuators, add an ENGO ERM-12A relay
Frequently Asked Questions
What type of thermostat does this work with?
The ECB8-230 works with 230V AC wired room thermostats on its SL zone inputs, and also with battery-powered or volt-free thermostats using the COM/NO input. This means you can mix thermostat types across zones in the same system.
Can I use NO actuators with this box?
No — the ECB8-230 is designed for NC (normally closed) actuators only. The 230V zone output activates to open the valve. Using NO actuators would result in valves being open at all times when no heat is demanded.
Do I need a separate relay for my pump?
No — the pump output is built in, rated at 230V/3A. Just wire your circulation pump directly to the pump output terminals.
What if I need more than 8 zones?
For 8 zones with a mix of wireless and wired zones, consider the ECB62-ZB (6 ZigBee wireless + 2 wired). For more than 8 wired zones, use multiple ECB8-230 units with a common boiler/pump output.
Is this compatible with smart thermostats?
Yes — any thermostat with a 230V AC SL output (such as ENGO wired thermostats) connects directly. For wireless smart control, pair with ENGO ZigBee thermostats and the EGATE-PRO gateway, or use the ECB62-ZB wiring centre instead for native ZigBee integration.
What's in the Box
- 1× ECB8-230 wired 8-zone control box
- Removable terminal block connectors (pre-fitted)
- Screw-on cover
- Quick installation guide
Installation by qualified person per BS 7671. NC actuators only. For ZigBee smart zone control see ECB62-ZB. Compatible actuator: E30NC-230.
