ENTES Electric Co., Ltd.

Thermistor Relay
PT-01
Summary

PT-01 is an electronic relay for monitoring the temperature of motor. PT-01 thermistor relay is developed for PTC protection. When the temperature of motor coil exceeds the limit temperature of Tc-PTC, the output relay will be switched off immediately.
Refer to the figure below to understand the typical impedance of PTC temperature characteristics at three different switching temperatures (110, 120, 130). As shown in the figure, the PTC impedance is less than 100W when T < Tc-5, and T > Tc+5. C, PTC impedance greater than 10 kW

Product Selection Table

"Np phase" protect

phase sequence protect

PTC protect

Out-off-balance protect

Adjustable
Interruption delay

Adjustable Turn off delay

1 C/O contact

1NO contact

DIN1 Track installation

DIN2 Track installation

Pieces / boxes

Product code

PT-01

Thermistor relay

●

PTC-3

Three Thermistor Groups

Common Specifications
working voltage	230 V AC; 50/60 Hz
Scope of work	(0,9-1,1)x Un
Connect	3- phase/Zero line(FR-02)/ 1- phase/Zero line(PT-01)
Output contact	1CO contact，8A, 2000 VA
Protection level	IP 20
ambient temperature Range	-5- +50℃
size	PK28 (FR-02, PT-01)
install	track or Panel installation
Shellweight	0,3kg
1 pack quantity	10 piece