The Square D HJA36060U43X is a 3 Pole Solid State molded case circuit breaker with a current rating of 60 Amps and a voltage rating of 600VAC. It has an interrupting rating of 65kAIC at 480V. The HJA36060U43X has an I-Line style plug-in connection type and includes long time, short time and instantaneous trip functions.
It utilizes an I-Line style plug-in connection on the line side for quick installation in I-Line panelboards and switchboards, while the load side features mechanical lugs for wire terminations.
Does the HJA36060U43X include a push-to-trip feature?
Yes, PowerPacT H-frame breakers feature an integral push-to-trip button on the cover, allowing you to manually trip the breaker to verify the mechanical operation of the trip mechanism.
Is the HJA36060U43X rated for 80% or 100% continuous current?
This specific catalog number is standard rated for 80% continuous current.
Does the HJA36060U43X provide ground fault protection?
No. The U43X suffix indicates a Micrologic 5.2A electronic trip unit, which provides Long-Time, Short-Time, and Instantaneous (LSI) protection, along with an integrated ammeter. It does not include equipment ground fault (LSIG) protection.
Is the HJA36060U43X rated for DC voltage applications?
No. While some thermal-magnetic PowerPacT breakers carry a 250VDC rating, models equipped with Micrologic electronic trip units, such as the HJA36060U43X, are rated for AC voltage only.
Can I install this breaker in a standard QO or NQ panelboard?
No, the HJA36060U43X is an I-Line style plug-in breaker. It is exclusively designed for use in Square D I-Line panelboards and switchboards, and will not fit in QO, NQ, or NF series panels.
What does the integrated ammeter on the U43X trip unit do?
The Micrologic 5.2A trip unit features an integrated LCD screen that displays real-time phase currents, allowing for local monitoring and easier troubleshooting of your electrical system.
What is the unit-mount equivalent of the HJA36060U43X?
If you need a unit-mount version of this breaker (with mechanical lugs on both the line and load sides) rather than the I-Line plug-in style, the correct catalog number is HJL36060U43X.
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