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Siemens / ITE HJ3B400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Bolt-On
Siemens / ITE
HJ3B400
Molded Case Circuit Breaker
Brand
Siemens / ITE
SKU
HJ3B400
Quantity
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Siemens / ITE HJ3B400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Description
Engineered for commercial power distribution, the Siemens HJ3B400 restores functionality to aging electrical infrastructure. This 3-pole, 400A molded case breaker provides reliable thermal-magnetic protection. Designed as an exact drop-in replacement, it bolts securely into legacy Siemens and ITE P4 or P5 panelboards. It serves as the cross-reference for the HJD63B400, ensuring a seamless fit. Rated for 65kAIC at 480VAC, this M-Frame breaker features an interchangeable trip unit.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | HJ3B400-R |
| Series | HJ |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 30kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P4, P5 Panelboards, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Lugs not included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
5 answersWhich panelboards are compatible with the Siemens HJ3B400 circuit breaker?
This breaker is designed for bolt-on installation in Siemens and legacy ITE P4 and P5 panelboards, as well as compatible switchboards.
Are terminal lugs included with the HJ3B400 breaker?
No, terminal lugs are not included. You will need to source the appropriate lug kits separately based on your specific wire size and conductor material.
What is a direct cross-reference for the HJ3B400?
The HJ3B400 serves as an exact drop-in replacement and cross-reference for the Siemens HJD63B400 circuit breaker, ensuring a seamless fit in existing infrastructure.
Is the trip unit on the HJ3B400 adjustable?
Yes, it features an interchangeable thermal magnetic trip unit with fixed thermal and adjustable magnetic settings, providing Long-Time and Instantaneous (LI) protection.
Can I install this breaker in a panelboard from a different manufacturer?
No. To maintain UL listing and ensure safe operation, the HJ3B400 should only be installed in approved Siemens or legacy ITE panelboards and switchboards. Mixing brands can lead to electrical hazards and void warranties.
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