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Square D HJA260501 Circuit Breaker
Square D
HJA260501
Circuit Breaker
Brand
Square D
SKU
HJA260501
Quantity
Core Specs
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Square D HJA260501 2 Pole Circuit Breaker
Re-Certified
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Square D HJA260501 2 Pole Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | HJA260501 |
| Series | PowerPacT H |
| Amperage | 50 A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 600VAC |
| Phase | 1 |
| AIC Rating | 65kAIC at 480VAC |
| Frame Type | H |
|---|---|
| For Use With | Square D I-Line Panelboards, Square D I-Line 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, Motor Operator |
|---|---|
| Accessories | Phase Connection AB |
| Standards | RoHS, REACh, HACR |
| Approval | CE, CSA, IEC, NOM, UL, NEMA |
| Temp Rating | -25 to 70 °C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Quantity
Square D HJA260501 2 Pole Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 50 A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 600VAC |
| Phase | 1 |
| AIC Rating | 65kAIC at 480VAC |
| Frame Type | H |
|---|---|
| For Use With | Square D I-Line Panelboards, Square D I-Line 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, Motor Operator |
|---|---|
| Accessories | Phase Connection AB |
| Standards | RoHS, REACh, HACR |
| Approval | CE, CSA, IEC, NOM, UL, NEMA |
| Temp Rating | -25 to 70 °C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
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Description
Square D HJA260501 2 Pole Circuit Breaker
The Square D HJA260501 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 50 Amps and a voltage rating of 600VAC. It has an interrupting rating of 65kAIC at 480VAC. The HJA260501 has an I-Line style plug-in connection type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 50 A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 600VAC |
| Phase | 1 |
| AIC Rating | 65kAIC at 480VAC |
| Frame Type | H |
|---|---|
| For Use With | Square D I-Line Panelboards, Square D I-Line 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, Motor Operator |
|---|---|
| Accessories | Phase Connection AB |
| Standards | RoHS, REACh, HACR |
| Approval | CE, CSA, IEC, NOM, UL, NEMA |
| Temp Rating | -25 to 70 °C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersWhat panelboards are compatible with the HJA260501 circuit breaker?
This breaker features an I-Line style plug-in connection and is exclusively designed for use in Square D I-Line panelboards and switchboards. It will not fit in standard QO, Homeline, or NQ/NF panels.
Can the PowerPacT HJA260501 replace older Square D legacy breakers?
Yes, the PowerPacT H-frame series is the modern replacement for legacy Square D F-frame breakers, such as the FA, FH, and FC series. When replacing an older breaker, verify that the interrupting rating and physical space requirements match your application.
What does the J in the HJA260501 catalog number signify?
The J indicates the interrupting rating performance level of the breaker. For this model, it signifies a high interrupting capacity of 100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC.
Is the HJA260501 suitable for DC voltage applications?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, with a DC interrupting rating of 20kA.
How does the I-Line connection type mount into the panel?
I-Line breakers like the HJA260501 feature a plug-on design for the line side that snaps directly onto the panelboard bus, while the load side uses traditional mechanical lugs for wire termination. This allows for fast, tool-free line-side installation.
What wire sizes are accepted by the load-side lugs on this 50A breaker?
The factory-installed lugs accept 14 AWG to 3/0 AWG aluminum or copper wire. Always refer to the breaker faceplate for exact torque specifications during installation.
What is the difference between the HJA260501 and HDA260501?
The difference is the interrupting rating. The HDA model has a standard D rating (25kA at 240VAC, 18kA at 480VAC), while the HJA model has a higher J rating (100kA at 240VAC, 65kA at 480VAC). Both share the same 50A trip, 2-pole configuration, and H-frame physical size.
What type of trip unit is installed in the HJA260501?
It features a fixed thermal-magnetic trip unit with Long-Time (L) and Instantaneous (I) protection functions. The thermal and magnetic trip points are factory-set and non-adjustable.
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