
Honeywell
Honeywell MT4-024-NC thermoelectric actuator, 24V
A 24V normally-closed thermoelectric actuator for two-position control of radiator, fan coil, underfloor heating and cooling valves.
At a glance
- Also known as 4200350
£43.44
£36.20 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The MT4-024-NC is a Honeywell small linear thermoelectric actuator for two-position (open/close) control of heating and cooling valves, used on radiators, fan coil units, underfloor heating, cooling ceilings and convectors.
Signs this part needs replacing
- Valve stays open or closed regardless of the control signal
- Actuator runs hot or makes a clicking/buzzing noise without moving the valve
- No response from the room thermostat or controller
- Visible damage to the casing or cable
Before you order
- Confirm your valve has the M30 x 1.5 mounting thread
- Check whether your system needs normally-closed (NC) or normally-open (NO) operation
- Isolate the control circuit before removal
Compliance
| Alternative numbers | 4200350 |
|---|
No fitment data held for this part.
Documents & drawings
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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