Square D HJA261251 Circuit Breaker
- 125
- 2 Pole
- I-Line Bracket
Square D
HJA261251
Circuit Breaker
Brand
Square D
SKU
HJA261251
Quantity
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Square D HJA261251 2 Pole Circuit Breaker
New
Quantity
Quantity
Square D HJA261251 2 Pole Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 125 A |
| Poles | 2 |
| Mounting Style | I-Line Bracket |
| Voltage | 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 | AWG 14 to AWG 3/0, Aluminum/Copper |
| 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 |
|---|---|
| Standards | RoHS, REACh, HACR |
| Approval | CE, UL, CSA, NEMA, NOM, IEC |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Quantity
Square D HJA261251 2 Pole Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 125 A |
| Poles | 2 |
| Mounting Style | I-Line Bracket |
| Voltage | 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 | AWG 14 to AWG 3/0, Aluminum/Copper |
| 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 |
|---|---|
| Standards | RoHS, REACh, HACR |
| Approval | CE, UL, CSA, NEMA, NOM, IEC |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
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Description
Square D HJA261251 2 Pole Circuit Breaker
The Square D HJA261251 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 125 Amps and a voltage rating of 600VAC, 250VDC. It has an interrupting rating of 25kAIC at 600VAC. The HJA261251 has an I-Line bracket mounting type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 125 A |
| Poles | 2 |
| Mounting Style | I-Line Bracket |
| Voltage | 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 | AWG 14 to AWG 3/0, Aluminum/Copper |
| 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 |
|---|---|
| Standards | RoHS, REACh, HACR |
| Approval | CE, UL, CSA, NEMA, NOM, IEC |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersWhat type of panelboards accept the HJA261251?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on bracket that mounts directly to the I-Line bus structure.
What does the "1" at the end of the HJA261251 catalog number indicate?
The "1" suffix indicates that the breaker's I-Line jaws are configured for an AB phase connection on the panelboard bus.
What does the "J" in the HJA261251 part number stand for?
The "J" designates the interrupting rating tier within the PowerPacT H-Frame family. It signifies a higher interrupting capacity (such as 65kA at 480VAC) compared to the standard "D" or "G" rated breakers.
Are the trip settings adjustable on the HJA261251?
No, this specific breaker features a thermal-magnetic trip unit with fixed long-time (thermal) and fixed instantaneous (magnetic) trip settings.
How are the line and load connections configured on this breaker?
The line side utilizes an I-Line plug-on jaw connection that seats directly onto the panelboard bus. The load side is equipped with mechanical lugs that accept aluminum or copper conductors.
What is the recommended lug torque for the HJA261251?
For the standard AL150HD mechanical load lugs, the required tightening torque is 50 lb-in for 14 AWG to 10 AWG wire, and 120 lb-in for 8 AWG to 3/0 AWG wire.
What tool is required to terminate the load lugs on this breaker?
The standard AL150HD load lugs require a 3/16-inch Allen wrench to properly torque the wire binding screws.
Can the HJA261251 replace older Square D F-Frame breakers?
Yes. The PowerPacT H-Frame occupies the same physical mounting space as discontinued Square D F-Frame breakers (such as the FA or FH series). It serves as a direct plug-on replacement in existing I-Line panelboards without requiring bus modifications.
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