Catalogue of products
The STDT thermal relay is used for starting and thermal protection of three-phase motors, equipped with temperature sensors of the thermocontact windings.
The switch with STDT thermal protection enables the connection of three-phase (3 ~ 400V) fan motors with terminals of the thermocontact outside the motor housing (fan box or connection cable). In addition, the device has a thermal overcurrent limiter and an electromagnetic short circuit relay to protect the line.
Rated voltage of 3 ~ 400V. Available version for mounting on a DIN rail or for surface mounting. Optional equipment: auxiliary contact ZB, blockade against unauthorized starting.
Maximum working temperature: 40 ° C (55 ° C – version E)