Merten Room Temperature Controller Insert, 2 A, Central Plate Mounting MEG5777-0000

The Merten MEG5777-0000 is a room temperature controller insert built for flush-mounted heating control. It pairs a mechanical bimetal sensor with a 230 V AC switching contact, giving you simple, reliable regulation without any programming or network setup.

Highlights

• Mechanical bimetal temperature sensor with an adjustment range of approximately 5 °C to 30 °C
• 1 normally open (NO) contact rated for 2 A at 230 V AC, 50/60 Hz
• Control LED indicates when heating is active
• Designed for flush-mounted installation with screw terminals
• Part of the Merten System M range; requires a central plate and frame (not included)

In daily use

Set the desired room temperature using the rotary control on the front. The bimetal sensor reacts to ambient temperature changes and switches the connected heating load via the NO contact. The integrated LED lights up while the heating circuit is closed, giving you a clear visual indication of operation.

Full specifications

• Product type: Room temperature controller insert
• Operating voltage: 230 V AC
• Frequency: 50/60 Hz
• Max. switching current: 2 A
• Switching contact: 1 NO (normally open)
• Temperature adjustment range: approx. 5 °C to 30 °C
• Temperature sensor: Bimetal
• Mounting type: Flush-mounted
• Connection type: Screw terminals
• Protection class: IP20
• Operating mode: Heating
• Indicator: Control LED (heating active)
• Material: Thermoplastic
• Colour: White / Neutral
• Series: Merten System M
• Compatibility: Requires Merten central plate and frame

Final note

This insert is the functional core of a Merten room temperature control solution. Combine it with the appropriate central plate and frame to match your interior.