Square D HJA260701 Circuit Breaker
- 70A
- 2 Pole
- I-Line
Quantity
Square D HJA260701 2 Pole Circuit Breaker
New
Quantity
Description
Square D HJA260701 2 Pole Circuit Breaker
The Square D HJA260701 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 70 Amps and a voltage rating of 600VAC, 250VDC. It has an interrupting rating of 25kAIC at 600VAC. The HJA260701 has an I-Line bracket mounting type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | HJA |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 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
8 answersWhat does the "1" at the end of the HJA260701 catalog number signify?
The "1" suffix indicates that this 2-pole breaker is factory configured for an AB phase connection on the I-Line bus.
Which panelboards accept the HJA260701 circuit breaker?
This breaker features an I-Line plug-in connection on the line side, making it exclusively compatible with Square D I-Line panelboards and switchboards. It cannot be used in standard unit-mount enclosures or QO load centers.
How is the load side wired on this PowerPacT H-frame breaker?
The load side is equipped with mechanical lugs that accept AWG 14 to AWG 3/0 aluminum or copper wire. The line side connects directly to the panelboard bus via the I-Line bracket.
What type of trip unit is installed in the HJA260701?
It features a fixed thermal magnetic trip unit. This provides long time protection for thermal overloads and an instantaneous trip function for short circuits.
Are alternate phase connections available for this 70A I-Line breaker?
Yes. While the HJA260701 is built for AB phasing, you can source the HJA260702 for AC phase connections or the HJA260704 for BC phase connections.
Does this breaker feature a push-to-trip mechanism?
Yes, Square D PowerPacT breakers include an integral push-to-trip button on the front cover. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism.
Is the HJA260701 suitable for DC power systems?
Yes, in addition to its 600VAC rating, this thermal magnetic breaker is rated for use in DC applications up to 250VDC.
How does the contact design improve fault protection?
PowerPacT H-frame breakers are equipped with dual-break rotating contacts. This design helps reduce the amount of peak current during a short circuit fault, minimizing potential damage to the downstream electrical system.
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