Select Transmissions and Motors Australia
Select Transmissions and Motors Australia
Select Transmissions and Motors Australia
Products > Electric Motors > Motor Controls and Accessories > AC > Thermister Relay
 
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Thermister Relay

 
RPW PTC PROTECTION RELAY

LED for indicating
24..240 Vac/ Vdc
Compact 22.5mm width
Din mount
PTC Relay, an electronic protection device that allows machinery ( motors generator, etc ) fitted with PTC thermistor sensors, the monitoring of temperature variation.

The RPW PTC Relay must be connected in series to PTC type sensors (max 3 sensors), to be energized.



The Thermistor Relay offers protection of motors against thermal overload, e. g. caused by insufficient cooling, heavy load starting conditions, undersized motors, increased switching frequency, single-phase operation, high ambient temperature, break operation, unbalance, etc.
The PTC temperature sensors are incorporated in the motor windings to measure the motor heating. This enables direct control via the thermistor relay
                   
 

 
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