Product Description

The temperature limit switch is

a readily available accessory.

It is a thermostat especially

designed for overheat protection for small assemblies.

The thermal response is excellent due to its miniaturized

housing. It becomes an effective thermal cutout due to the

fact that this limit switch can

be fitted close to the heatsink

of the relay.

When connected serial with

the control voltage, the TLS

will switch off the relay as

soon as the operating temperature of the switch is reached.

The relay will be activated

again when the temperature

drops (approx. 30°C) below

its cutout value.

In the RZ3 relay, the TLS can

be connected to two free (internally non-connected) terminals (B1/B2).

Thermal compound must be

added when inserting the TLS

(to guarantee a fast thermal

response).

The heatsink selection charts

(load current versus ambient

temperature) for RSO types

provide information about

which thermal switch to use.