Square D HJA261254 Circuit Breaker
- 125A
- 2 Pole
- I-Line
Quantity
Square D HJA261254 2 Pole Circuit Breaker
New
Quantity
Description
Square D HJA261254 2 Pole Circuit Breaker
The Square D HJA261254 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 125 Amps and a voltage rating of 600VAC. It has an interrupting rating of 25kAIC at 600VAC. The HJA261254 has an I-Line bracket mounting type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | H |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 14-3/0 AWG |
| 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 |
| Standards | RoHS, REACh, HACR |
|---|---|
| Approval | CE, UL, CSA, NEMA, NOM, IEC |
| Temp Rating | -25 to 70 °C |
Product FAQs
6 answersWhich panelboards are compatible with the Square D HJA261254 circuit breaker?
This breaker features an I-Line style plug-in connection and is designed exclusively for use in Square D I-Line panelboards and switchboards. It is not compatible with standard NQ or NF panelboards.
What does the 4 at the end of the HJA261254 catalog number indicate?
The 4 suffix specifies the phase connection for the I-Line bus. It indicates that this 2-pole breaker connects to the B and C phases (BC phase connection) in the panelboard.
What is the interrupting rating of the HJA261254 at 240V and 480V?
While rated for 25 kAIC at its maximum 600VAC, the J-tier interrupting rating provides higher capacities at lower voltages. It is rated for 100 kAIC at 240VAC and 65 kAIC at 480VAC.
How does the HJA261254 connect to the panelboard?
It features an I-Line plug-on connection for the line side, allowing it to mount directly to the panelboard bus. The load side utilizes standard mechanical lugs for wire connections.
Can the HJA261254 be used in DC applications?
Yes, PowerPacT H-frame breakers with thermal-magnetic trip units and the J-tier interrupting rating are suitable for DC systems. This breaker is rated for up to 250VDC with an interrupting capacity of 20 kAIC.
What do the letters in the HJA prefix stand for?
In the PowerPacT nomenclature, H designates the 150A maximum frame size. J indicates the interrupting rating tier. A specifies the I-Line plug-in mounting style.
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