Square D HJA260254 Molded Case Circuit Breaker
- 25A
- 2 Pole
- I-Line
Square D
HJA260254
Molded Case Circuit Breaker
Brand
Square D
SKU
HJA260254
Quantity
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Square D HJA260254 - 25A 2 Pole Molded Case Circuit Breaker
New
Quantity
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Description
Built for demanding commercial environments, the Square D HJA260254 delivers reliable long-time and instantaneous (LI) overcurrent protection. This 25A PowerPacT H-Frame breaker installs into Square D I-Line panelboards using a factory-configured BC phase arrangement. It effectively replaces older FA26025, FC26025, and FH26025 models.Specifications
| Brand | Square D |
|---|---|
| Series | HJA |
| Amperage | 25A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 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, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Phase Connection BC (Factory Configured) |
| Standards | CSA C22.2 No 5, IEC 60947-2, NEMA AB1, UL 489 |
| Approval | CE, CSA, HACR, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, 80% Rated, Reverse Feed |
Product FAQs
6 answersWhich panelboards are compatible with the HJA260254 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It utilizes an I-Line style plug-in connection and will not fit standard load centers or NQ/NF panels.
What wire sizes and materials are accepted by the lugs on this breaker?
The standard lugs accommodate wire gauges from 14 AWG up to 3/0 AWG. They are rated for both aluminum and copper conductors.
How does the trip unit function on the HJA260254?
It features a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal element is fixed, while the magnetic instantaneous trip threshold is adjustable.
What are the specific interrupting ratings (AIC) across different voltage levels?
The breaker provides 100kA at 240VAC, 65kA at 480VAC or 480Y/277VAC, and 25kA at 600VAC or 600Y/347VAC. It is also rated for 20kA at 250VDC.
Does this breaker require a separate mounting hardware kit for installation?
No, it features an I-Line bracket mounting type. The plug-in design allows it to attach directly to the busbar of an I-Line panelboard without additional mounting hardware kits.
Can the HJA260254 be installed in direct current (DC) systems?
Yes, this breaker is rated for use in DC applications up to 250VDC, where it delivers a 20kA interrupting rating.
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