Delivering precise long-time and instantaneous protection, this 60A PowerPacT H-Frame breaker utilizes a Micrologic 3.2 electronic trip unit. It is engineered for commercial and industrial distribution systems requiring accurate, adjustable trip settings without the complexity of short-time coordination. Configured for unit mount applications, it installs into industrial control panels and standard H-Frame enclosures.
What does the U31X suffix indicate on the HDL36060U31X?
The U31X suffix signifies that the breaker is equipped with a Micrologic 3.2 solid-state electronic trip unit. This provides adjustable Long-Time and fixed Instantaneous (LI) protection settings for precise system coordination.
Is the HDL36060U31X compatible with Square D I-Line panelboards?
No, the HDL36060U31X is a unit-mount breaker designed for feed-thru or lug-to-lug connections. For I-Line plug-in mounting, you will need the HDA36060U31X instead.
What is the continuous current rating for the HDL36060U31X?
This circuit breaker is standard-rated for 80 percent continuous current. It is not designed for 100 percent continuous load applications.
What is the difference between the HDL36060U31X and the HGL36060U31X?
Both are 60A, 3-pole PowerPacT H-Frame breakers with Micrologic 3.2 trip units, but they have different interrupting capacities. The HDL features a D-interrupting rating of 18kA at 480VAC, while the HGL features a higher G-interrupting rating of 35kA at 480VAC.
Can the mechanical lugs on the HDL36060U31X be replaced?
Yes, the factory-installed mechanical lugs on this unit-mount breaker can be removed. This allows you to install alternate terminal configurations, such as compression lugs or busbar connections, depending on your panel requirements.
Does this breaker include auxiliary contacts or shunt trips?
The HDL36060U31X does not come with factory-installed auxiliary contacts or shunt trips. However, the PowerPacT H-Frame design allows for field-installable internal accessories behind the front cover if your control panel requires them.
How do I adjust the trip settings on the HDL36060U31X?
The Micrologic 3.2 electronic trip unit features dials on the front of the breaker to adjust the long-time pickup settings. The instantaneous magnetic trip function remains fixed and cannot be adjusted.
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Review summary
Customers rate this product 4.0 out of 5 based on 1 review.