The Square D HDL36060SA is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 60 Amps and a voltage rating of 600VAC, 250VDC. It has an interrupting rating of 25kAIC at 240VAC, 18kAIC at 480VAC. The HDL36060SA has a feed-thru connection type and includes long time and instantaneous trip functions.
What does the SA suffix mean in the HDL36060SA catalog number?
The SA suffix indicates that this breaker comes with a factory-installed 120VAC shunt trip accessory. This allows the breaker to be tripped remotely when a 120V control voltage is applied.
How is the HDL36060SA circuit breaker mounted?
The L in the catalog number designates this as a unit-mount breaker. It is designed to be fastened directly to a backpan or mounting plate using screws, and it uses standard feed-thru lugs for both line and load connections.
What is the interrupting capacity of this breaker at 600VAC?
While the breaker provides 25kAIC at 240VAC and 18kAIC at 480VAC, the D-interrupting rating provides a 14kAIC rating when applied to a 600VAC system.
What wire sizes are accepted by the standard lugs on this 60A breaker?
The factory lugs on this PowerPacT H-frame breaker accept wire gauges ranging from 14 AWG to 3/0 AWG. They are dual-rated for use with either copper or aluminum conductors.
Are the trip settings adjustable on the HDL36060SA?
No, this breaker uses a standard thermal-magnetic trip unit with fixed long-time and fixed instantaneous trip functions. It does not feature adjustable dials for customizing the trip curve.
Can the HDL36060SA be used in direct current applications?
Yes, this thermal-magnetic breaker is rated for use on DC systems up to 250VDC, making it suitable for various industrial control and battery applications.
Can I add auxiliary contacts to this breaker?
Yes, the PowerPacT H-frame design allows for field-installable accessories. While one accessory pocket is occupied by the factory-installed shunt trip, you can still install auxiliary switches or alarm contacts in the remaining compartments.
Is this breaker a direct replacement for older Square D 60A breakers?
The HDL36060SA is a direct replacement for other PowerPacT H-frame, unit-mount breakers with the same specifications. It will not directly replace older F-frame or FA series breakers without modifying the mounting hardware and panel space.
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