ITE Siemens HJ3T175 Trip Unit
- 175
- 3 Pole
Quantity
ITE Siemens HJ3T175 Trip Unit
Re-Certified
Quantity
Description
ITE HJ3T175 Trip Unit
ITE HJ3T175 is a 3 Pole tripunit with a current rating of 175 Amps and a voltage rating of 600V. It has a bolt-on connection type and includes long time and instantaneous trip functions.
Specifications
| Amperage | 175 A |
|---|---|
| Voltage | 600V |
| Functions | Long Time and Instantaneous Trip |
| Protection | Standard |
| Poles | 3 |
|---|
| Connection Type | Bolt-On |
|---|---|
| Configuration | Single |
| Series | HJ |
|---|---|
| Brand | ITE Siemens |
| MPN | HJ3T175-R |
Product FAQs
5 answersWhich circuit breaker frames accept the HJ3T175 trip unit?
The HJ3T175 is an interchangeable trip unit designed specifically for Siemens and ITE HJ frame molded case circuit breakers. It is not compatible with non-interchangeable frames like the HJXD.
What specific trip functions are included in the HJ3T175?
This thermal-magnetic trip unit provides long-time and instantaneous (LI) protection. The long-time function handles sustained overloads, while the instantaneous function responds immediately to short-circuit faults.
How does the HJ3T175 connect to the breaker frame?
It utilizes a bolt-on connection type. When installing or replacing the trip unit, ensure the breaker is de-energized and follow standard torque specifications for the internal frame mounting bolts.
Can I use the HJ3T175 to modify the amperage of an existing HJ frame breaker?
Yes, this interchangeable trip unit can be installed in a standard HJ frame to establish a 175-amp continuous current rating, allowing panel builders to adapt existing frames to new load requirements.
What safety precautions are required when replacing the HJ3T175 trip unit?
Always de-energize the switchgear and verify that power is disconnected before opening the breaker housing. Only qualified electrical personnel should perform trip unit replacements to ensure proper alignment and torque.
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