Winding Protection Relay Model : WTRD1

Maker : Minilec.

Sensing motor winding temperature through PTC thermistors. Winding overheating, sensor short, sensor open faults.
Suitable for single, triple or 6/9/12 PTCs.

Specifications :

Supply Voltage Auxiliary : 24/48/110/240/380/415/440 VAC / 24 VDC +/- 10%
Output Contacts : 1 CO
Trip Setting : Thermistor Sensor Healthy - 40 ohm - 4 K ohm
                    Thermistor Sensor Trip - 4.1 K ohm - 5.5 K ohm
                    Thermistor Sensor Open - 5.6 K ohm & above
                    Thermistor Sensor Short - 40 ohm & below
Trip Time Delay : Less than 2 secs.
Resetting Mode : Auto / Manual ( optional )
Dimension : Overall ( L x W x D ) - 76 x 30.5 x 117.5
                   Mounting ( L x W ) - 68 mm centre to centre / 35 mm Rail Mounting
Weight : 300 gms