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| Electrical Network Protection-Current relays Name:JT4 current relays |
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Description
Electromagnetic Relay Series JT4 communicate applicable to AC 50HZ, 380 volts and below, the automatic control circuit as a zero-sequence voltage, over-current. Over-voltage ，intermediate the relay. Over-current relay also apply to the control circuit 60HZ.
Specification
| Mould No. |
JT4-□□A:over-voltage relay
JT4-□□P:intermediate relay
JT4-□□L:over-current relay
JT4-□□M：manual over-current relay |
| Adjustable parameter range |
Pull-in voltage 105~120%Ue
Pull-in circuit 30~60%Ie
Release voltage 10~35%Ue
Pull-in circuit 110~350%Ie |
| Return coefficient |
0.1~0.3
0.2~0.4
0.1~0.3 |
Coil rated current Ie(A)/ voltage(V) |
110,220,380V
110,127,220,380V
5,10,15,20,40,80,150,300,600A |
| Consumed power |
75VA 5W |
| Reset form |
Manual & automatic |
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