Engineered for industrial power distribution, the Square D HJA36060 is a 3-pole, 60A PowerPacT H-Frame MCCB. It provides reliable overcurrent protection for heavy-duty electrical systems. This unit installs into Square D I-Line panelboards and switchboards. It serves as a replacement for legacy FA36060, FC36060, and FH36060 breakers. Featuring a thermal-magnetic trip unit, it delivers a 65 kAIC rating at 480VAC. The breaker includes a Visi-Trip indicator and is HACR rated.
Can the HJA36060 replace older Square D F-frame circuit breakers?
Yes. The PowerPacT H-frame series is the manufacturer direct upgrade for legacy F-frame (FA, FH) I-Line circuit breakers. The HJA36060 can be installed in the same existing I-Line panelboards and switchboards, though physical dimensions and accessories may differ from the legacy models.
Will the HJA36060 fit in a standard Square D QO or NQ panel?
No. The HJA36060 features an I-Line plug-in connection on the line side and is exclusively designed for use in Square D I-Line panelboards and switchboards. It is not compatible with standard NF, NQ, or QO load centers.
How much mounting space does the HJA36060 require in an I-Line panelboard?
As a 3-pole H-frame breaker, the HJA36060 requires 4.5 inches of vertical I-Line mounting space, which equates to 1.5 inches per pole.
What are the magnetic trip thresholds for the HJA36060?
The HJA36060 features a fixed thermal-magnetic trip unit. The instantaneous magnetic protection is factory-set with a hold current of 800A and a trip current of 1450A.
What type of lugs are included on the load side of the HJA36060?
The HJA36060 comes standard with AL150HD mechanical lugs installed on the load side. The line side utilizes standard I-Line jaw connections to attach directly to the panelboard bus.
What is the recommended tightening torque for the AL150HD load lugs on the HJA36060?
For the standard AL150HD load lugs, the manufacturer specifies a tightening torque of 44 lb-in (5 N.m) for 14 to 10 AWG wire, and 124 lb-in (14 N.m) for 8 to 3/0 AWG wire. Always verify exact torque requirements on the breaker faceplate prior to installation.
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Customers rate this product 5.0 out of 5 based on 2 reviews.