Square D HJA261501 Molded Case Circuit Breaker
- 150A
- 2 Pole
- I-Line
Square D
HJA261501
Molded Case Circuit Breaker
Brand
Square D
SKU
HJA261501
Quantity
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Square D HJA261501 - 150A 2 Pole Molded Case Circuit Breaker
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Description
Offering high-performance protection for industrial facilities, the Square D HJA261501 is a 150A molded case circuit breaker from the PowerPact H-Frame lineup. It provides precise long-time and instantaneous (LI) thermal-magnetic trip functions for 600VAC distribution systems. This breaker installs into Square D I-Line switchboards and panelboards via a factory-configured AB phase connection. It is an ideal replacement for obsolete KA26150AB, KH26150AB, and KC26150AB breakers.Specifications
| Brand | Square D |
|---|---|
| Series | HJA |
| Amperage | 150A |
| 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, I-Line Switchboards |
| Wire Gauge | 14 AWG - 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, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs Included |
| 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 | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed |
Product FAQs
10 answersWhat panels accept the HJA261501?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It will not fit in standard load centers or NQ/NF panelboards.
Can this 2-pole breaker be installed in a 3-phase I-Line panel?
Yes. I-Line panelboards are typically 3-phase, and this 2-pole breaker is designed to plug onto two of the three phases on the bus stack.
What does the "1" at the end of the HJA261501 catalog number signify?
The "1" suffix indicates the specific phase connection for the I-Line bus. For this 2-pole breaker, it designates an AB phase connection.
What wire sizes are compatible with the lugs on this breaker?
The standard load-side lugs accept 14 AWG to 3/0 AWG aluminum or copper wire.
How much mounting space does this breaker require in an I-Line panel?
This 2-pole H-Frame breaker requires 3 inches of mounting space on the I-Line bus, as each pole takes up 1.5 inches of width.
How does the HJA261501 mount into a panel?
It features an I-Line style plug-in connection. The line side uses plug-on jaws that attach directly to the panelboard bus, while the load side uses standard lug connections.
How does the trip unit on the HJA261501 operate?
It features a thermal-magnetic trip unit with fixed thermal (Long-Time) protection for overloads and an adjustable magnetic (Instantaneous) trip for short circuits. The adjustable magnetic setting allows for better coordination with downstream devices.
Can the HJA261501 be used in DC applications?
Yes, this breaker is rated for use in direct current systems up to 250VDC, where it provides an interrupting capacity of 20kAIC.
Is the HJA261501 suitable for use as a GFCI or AFCI device?
No, this is a standard thermal-magnetic molded case circuit breaker. It does not provide ground fault (GFCI) or arc fault (AFCI) protection.
What frame family does the HJA261501 belong to?
It is part of the Square D PowerPacT H-Frame family. This frame size is commonly used in commercial and industrial applications requiring up to 150A of protection in a compact footprint.
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