
Honeywell Small Linear Thermoelectric Actuator with Indicator MT4-230-NC
The Honeywell MT4-230-NC Small Linear Thermoelectric Actuator offers precise and reliable operation for valves used in room and zone heating applications. Designed for noiseless, long-term performance, this compact actuator is perfect for controlling heating and cooling valves in fan coil units, radiators, floor heating systems, and manifolds.
Key Features
- Model MT4-230-NC – Normally closed actuator compatible with 230V mains supply.
- Visual position indicator – Red indicator behind the face window shows valve position and type of action (NO or NC) for easy monitoring.
- Noiseless operation – Silent performance suitable for residential and commercial environments.
- Reliable long-term operation – Robust construction ensures durability and consistent function.
- Compact design – Ideal for installation in limited space and on standard M30 x 1.5 valve fittings.
- Plug-in cable – Simplifies wiring and servicing with easy installation and maintenance.
- Water-protected housing – IP44 rated for protection in all mounting positions, suitable for heating system environments.
- Overload protection – 4 kV surge protection on 230V models for enhanced electrical safety.
- Operation modes – Supports two-position (on/off) or pulse width modulation (PWM) control for flexible heating and cooling modulation.
- Snap-on valve adapter – Tool-free mounting for fast and secure installation on thermostatic radiator valves and valve inserts.
Technical Specifications
| Model Number (MPN) | MT4-230-NC |
|---|---|
| EAN Code | 4019837107307 |
| Power Supply | 230 V AC, 50/60 Hz |
| Stroke Length | 4 mm |
| Type | Thermoelectric linear actuator, normally closed (NC) |
| Protection Rating | IP44 water protection in any mounting position |
| Mounting | Fits standard M30 x 1.5 valve mountings |
| Operation Modes | Two-position (on/off) or PWM control |
| Dimensions | Compact size suitable for limited space installation |
| Overload Protection | 4 kV surge protection on 230V models |
| Warranty | 1 year |
Installation & Usage
- Perfect for use in heating and cooling systems including fan coil units, radiators, underfloor heating manifolds, chilled ceilings, and convectors.
- Snap-on mounting adapter makes installation tool-free and easy to replace or service.
- Compatible with thermostatic radiator valves, motorised valve inserts and manifold systems using M30 x 1.5 fittings.
- Recommended for precise zone control with time-controlled or pulse width modulation regulation.
- Ensure professional installation for safe electrical connection and optimal system performance.
Box Contents
- Honeywell MT4-230-NC Small Linear Thermoelectric Actuator
- Integrated visual position indicator
- Plug-in cable for easy wiring
- Valve adapter for snap-on mounting
- User manual and installation guide
The Honeywell MT4-230-NC is a dependable, compact actuator designed for noiseless valve operation with easy installation and clear position indication, ideal for upgrading or maintaining efficient heating and cooling systems in UK homes and commercial properties.
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Honeywell Small Linear Thermoelectric Actuator with Indicator MT4-230-NC
The Honeywell MT4-230-NC Small Linear Thermoelectric Actuator offers precise and reliable operation for valves used in room and zone heating applications. Designed for noiseless, long-term performance, this compact actuator is perfect for controlling heating and cooling valves in fan coil units, radiators, floor heating systems, and manifolds.
Key Features
- Model MT4-230-NC – Normally closed actuator compatible with 230V mains supply.
- Visual position indicator – Red indicator behind the face window shows valve position and type of action (NO or NC) for easy monitoring.
- Noiseless operation – Silent performance suitable for residential and commercial environments.
- Reliable long-term operation – Robust construction ensures durability and consistent function.
- Compact design – Ideal for installation in limited space and on standard M30 x 1.5 valve fittings.
- Plug-in cable – Simplifies wiring and servicing with easy installation and maintenance.
- Water-protected housing – IP44 rated for protection in all mounting positions, suitable for heating system environments.
- Overload protection – 4 kV surge protection on 230V models for enhanced electrical safety.
- Operation modes – Supports two-position (on/off) or pulse width modulation (PWM) control for flexible heating and cooling modulation.
- Snap-on valve adapter – Tool-free mounting for fast and secure installation on thermostatic radiator valves and valve inserts.
Technical Specifications
| Model Number (MPN) | MT4-230-NC |
|---|---|
| EAN Code | 4019837107307 |
| Power Supply | 230 V AC, 50/60 Hz |
| Stroke Length | 4 mm |
| Type | Thermoelectric linear actuator, normally closed (NC) |
| Protection Rating | IP44 water protection in any mounting position |
| Mounting | Fits standard M30 x 1.5 valve mountings |
| Operation Modes | Two-position (on/off) or PWM control |
| Dimensions | Compact size suitable for limited space installation |
| Overload Protection | 4 kV surge protection on 230V models |
| Warranty | 1 year |
Installation & Usage
- Perfect for use in heating and cooling systems including fan coil units, radiators, underfloor heating manifolds, chilled ceilings, and convectors.
- Snap-on mounting adapter makes installation tool-free and easy to replace or service.
- Compatible with thermostatic radiator valves, motorised valve inserts and manifold systems using M30 x 1.5 fittings.
- Recommended for precise zone control with time-controlled or pulse width modulation regulation.
- Ensure professional installation for safe electrical connection and optimal system performance.
Box Contents
- Honeywell MT4-230-NC Small Linear Thermoelectric Actuator
- Integrated visual position indicator
- Plug-in cable for easy wiring
- Valve adapter for snap-on mounting
- User manual and installation guide
The Honeywell MT4-230-NC is a dependable, compact actuator designed for noiseless valve operation with easy installation and clear position indication, ideal for upgrading or maintaining efficient heating and cooling systems in UK homes and commercial properties.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Honeywell MT4-230-NC Small Linear Thermoelectric Actuator offers precise and reliable operation for valves used in room and zone heating applications. Designed for noiseless, long-term performance, this compact actuator is perfect for controlling heating and cooling valves in fan coil units, radiators, floor heating systems, and manifolds.
Key Features
- Model MT4-230-NC – Normally closed actuator compatible with 230V mains supply.
- Visual position indicator – Red indicator behind the face window shows valve position and type of action (NO or NC) for easy monitoring.
- Noiseless operation – Silent performance suitable for residential and commercial environments.
- Reliable long-term operation – Robust construction ensures durability and consistent function.
- Compact design – Ideal for installation in limited space and on standard M30 x 1.5 valve fittings.
- Plug-in cable – Simplifies wiring and servicing with easy installation and maintenance.
- Water-protected housing – IP44 rated for protection in all mounting positions, suitable for heating system environments.
- Overload protection – 4 kV surge protection on 230V models for enhanced electrical safety.
- Operation modes – Supports two-position (on/off) or pulse width modulation (PWM) control for flexible heating and cooling modulation.
- Snap-on valve adapter – Tool-free mounting for fast and secure installation on thermostatic radiator valves and valve inserts.
Technical Specifications
| Model Number (MPN) | MT4-230-NC |
|---|---|
| EAN Code | 4019837107307 |
| Power Supply | 230 V AC, 50/60 Hz |
| Stroke Length | 4 mm |
| Type | Thermoelectric linear actuator, normally closed (NC) |
| Protection Rating | IP44 water protection in any mounting position |
| Mounting | Fits standard M30 x 1.5 valve mountings |
| Operation Modes | Two-position (on/off) or PWM control |
| Dimensions | Compact size suitable for limited space installation |
| Overload Protection | 4 kV surge protection on 230V models |
| Warranty | 1 year |
Installation & Usage
- Perfect for use in heating and cooling systems including fan coil units, radiators, underfloor heating manifolds, chilled ceilings, and convectors.
- Snap-on mounting adapter makes installation tool-free and easy to replace or service.
- Compatible with thermostatic radiator valves, motorised valve inserts and manifold systems using M30 x 1.5 fittings.
- Recommended for precise zone control with time-controlled or pulse width modulation regulation.
- Ensure professional installation for safe electrical connection and optimal system performance.
Box Contents
- Honeywell MT4-230-NC Small Linear Thermoelectric Actuator
- Integrated visual position indicator
- Plug-in cable for easy wiring
- Valve adapter for snap-on mounting
- User manual and installation guide
The Honeywell MT4-230-NC is a dependable, compact actuator designed for noiseless valve operation with easy installation and clear position indication, ideal for upgrading or maintaining efficient heating and cooling systems in UK homes and commercial properties.



















