The Square D HDA36150SA is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 150 Amps and a voltage rating of 600VAC, 250VDC. It has an interrupting rating of 25kAIC at 240VAC, 18kAIC at 480VAC. The HDA36150SA has an I-Line bracket mounting type and includes long time and instantaneous trip functions.
What does the "SA" suffix mean in the HDA36150SA catalog number?
The "SA" suffix indicates that this circuit breaker includes a factory-installed shunt trip, typically rated for 120VAC control voltage. This allows the breaker to be tripped remotely.
How are the line and load connections configured on the HDA36150SA?
This breaker features an I-Line style plug-in connection on the line side for direct mounting onto the panelboard bus, and mechanical lugs on the load side for wire terminations.
What is the interrupting capacity (AIC) of the HDA36150SA at 600VAC?
While the spec table lists the 240VAC and 480VAC ratings, the D-interrupting class of this breaker provides a 14kAIC rating when used in 600VAC systems.
Can the HDA36150SA replace older Square D breakers?
Yes, PowerPacT H-frame I-Line breakers are designed to occupy the same mounting space as discontinued F-frame breakers. The HDA36150SA can serve as a direct plug-on replacement for legacy 150A, 3-pole F-frame breakers when a factory-installed shunt trip is required.
Does the HDA36150SA have a push-to-trip feature?
Yes, PowerPacT H-frame breakers include an integral push-to-trip button on the cover. This allows you to manually trip the breaker to verify the mechanical operation of the trip mechanism.
Can the shunt trip on the HDA36150SA be installed or removed in the field?
No, the "SA" suffix denotes a factory-installed shunt trip. It is not field-installable or removable, and it occupies internal accessory space within the breaker housing.
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