¹ When connecting with wires, wire end ferrules must be used.

> Large setting range

> Small size

> Simple to mount

> High switching performance

NT 33: Thermostat (normally closed); contact breaker for regulating heaters. The contact opens when temperature is rising.

NT 34: Thermostat (normally open); contact maker for regulating of filter fans and heat exchangers or for switching signal devises when temperature limit has been exceeded. The contact closes when temperature is rising.

Important note: The contact system of the regulator is subjected to environmental influences, thus the contact resistance may change. This can lead to a voltage drop and/or self-heating of the contacts.