Technical Data of Thermal Overload Relay
| Relay
Type |
PK1 |
PC1 |
PC2/3 |
| Relay
Setting Range (AMP) |
2.5-4,
4-6.5, 6-10, 9-14 |
1-1.6, 1.5-2.5, 2.5-4,4-6.5, 6-10, 10-16, 11-18 |
9-14,
13-21, 20-32, 28-42 |
| Trip
Class |
10A |
10A |
10A |
| System
voltage |
415 V A.C , 50 Hz |
415
V A.C ,50 Hz |
415
V A.C, 50 Hz |
| Insulation
volatage(Ui) |
500V |
500V |
500V |
| Rated
Impulse Voltage (Uimp) |
6KV |
6KV |
6KV |
| Number
of Poles |
3 |
3 |
3 |
| Ambient
Temperature Compensation |
PROVIDED |
PROVIDED |
PROVIDED |
| Working
Temperature Range |
-5°C
TO 55°C |
-5°C
TO 55°C |
-5°C
TO 55°C |
| Single
Phasing Protection |
NOT
PROVIDED |
NOT
PROVIDED |
NOT
PROVIDED |
| Aux.
Contacts (Built-in) |
1-ON
|
1-ON 1-NO |
1-ON 1-NO |
| Rating
of Aux. Contacts |
|||
| Thermal
Current (Ith) |
6A
|
6A
|
6A
|
| Operational Current at 415 V AC |
2A |
2A |
2A |
| Thermal
Capacity |
|||
| 1
Main Terminal With Lugs |
4
Sq.mm |
6
Sq.mm |
25
Sq.mm |
| 2 Aux.Terminals w/o Lungs |
2 Nos x2.5 Sq.mm |
2Nos x 2.5 Sq.mm |
2Nos x 2.5 Sq.mm |
|
Approximate Weight(gms) |
230 |
230 |
340 |
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