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Square D HJA260304 Molded Case Circuit Breaker
- 30A
- 2 Pole
- I-Line
Square D
HJA260304
Molded Case Circuit Breaker
Brand
Square D
SKU
HJA260304
Quantity
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Square D HJA260304 - 30A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial distribution, the HJA260304 provides reliable overload and short-circuit protection. This 30A, 2-pole molded case circuit breaker features fixed thermal and fixed magnetic trip units. Designed for Square D I-Line panelboards, it utilizes a plug-on mounting style with a BC phase connection. It serves as a seamless upgrade for FA26030BC and FH26030BC breakers. Rated at 65kAIC at 480VAC, this current-limiting device is HACR rated and supports reverse feed.Specifications
| Brand | Square D |
|---|---|
| Part Number | HJA260304 |
| Series | HJA |
| Amperage | 30A |
| 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 | H |
|---|---|
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Phase Connection BC |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Reverse Feed, Phase Connection BC |
Product FAQs
7 answersWhat type of panelboards accept the HJA260304 circuit breaker?
The HJA260304 is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection that mounts directly to the internal busbar stack.
What does the J in the HJA260304 catalog number signify?
The J designates the interrupting rating tier of this PowerPacT H-frame breaker. It provides a high breaking capacity of 100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC.
What wire sizes and materials are compatible with the load lugs on the HJA260304?
The factory-installed mechanical lugs accept wire gauges ranging from 14 AWG to 3/0 AWG. They are rated for use with both aluminum and copper conductors.
Are the thermal and magnetic trip settings adjustable on the HJA260304?
No, this breaker is equipped with a thermal-magnetic trip unit that features fixed thermal and fixed magnetic trip elements. The Long-Time and Instantaneous protection settings cannot be field-adjusted.
Can the PowerPacT HJA260304 replace legacy Square D F-frame breakers?
Yes, the PowerPacT H-frame series serves as the modern replacement for older Square D F-frame I-Line breakers, such as the FA and FH series. Verify your panelboard space requirements before upgrading.
Is the HJA260304 suitable for use in DC electrical systems?
Yes, in addition to its standard AC ratings, this molded case circuit breaker is rated for 250VDC applications with an interrupting capacity of 20kA.
How is the HJA260304 secured within an I-Line panelboard?
The breaker utilizes isolated plug-on jaws on the line side that connect directly to the panelboard bus. It is then mechanically secured to the panel using an integrated I-Line mounting bracket.
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