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Siemens / ITE HJ3B250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Bolt-On
Siemens / ITE
HJ3B250
Molded Case Circuit Breaker
Brand
Siemens / ITE
SKU
HJ3B250
Quantity
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Siemens / ITE HJ3B250 - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
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Description
A drop-in replacement for aging infrastructure, this 250-amp molded case circuit breaker restores safe operation to commercial electrical systems. It is specifically designed to mount into Siemens P4 and P5 panelboards, eliminating the need for complex retrofits. For modern cross-referencing, this legacy component is replaced by the HJD63B250. The thermal-magnetic trip unit provides dependable long-time and instantaneous protection with a 65 kAIC interrupting capacity at 480VAC.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | HJ3B250-R |
| Series | HJ |
| Amperage | 250A |
| 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 |
| Wire Gauge | 3/0 AWG - 500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| 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 HJ3B250 circuit breaker?
This legacy breaker is designed to mount directly into Siemens P4 and P5 panelboards, as well as compatible switchboards, without the need for complex retrofits.
What is the modern cross-reference for the legacy HJ3B250?
If you are looking for a modern equivalent, this legacy component is replaced by the Siemens HJD63B250.
What wire sizes are accepted by the terminals on this breaker?
The lugs accommodate wire gauges ranging from 3/0 AWG to 500 kcmil. Ensure your conductors fall within this range for proper installation.
How is the trip unit configured on the HJ3B250?
It utilizes a thermal-magnetic trip unit that provides fixed thermal protection and adjustable magnetic settings for its long-time and instantaneous (LI) trip functions.
What is the ambient temperature rating for this circuit breaker?
The HJ3B250 is calibrated for safe operation in environments with ambient temperatures up to 40 degrees Celsius.
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