Oil boiler control. Robust plastic housing consisting of control and limiter capillary thermostats.

Features

• Suitable for use with or without immersion pocket
• Pre-wired internally for ease of installation
• Terminals for auxiliary control circuits

Operation

Control: a rise in temperature causes the expansion of liquid within the bulb and capillary.

The liquid acts on a bellows assembly within the plastic housing to open and close electrical contacts.

High limit: in case of abnormal rise in temperature, liquid expansion in the bulb and capillary of the dedicated safety limiter acts on a bellows assembly to open electrical contacts.

The limiter is manually resettable.