Square D 3G-OTH-609476 — Technical Specifications

Name: Square D 3G-OTH-609476 Molded Case Circuit Breaker: 300 A Amps, 25kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 240V AC, Q4 (MPN Q4L3300). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
Brand: Square D

The Square D Q4L3300 is a Q4-Frame molded case circuit breaker rated for 300 A at 240V AC with a maximum AIR rating of 25kA at 120/240V AC. It features 3 poles, ABC phase connection, adjustable instantaneous trip, and lug terminals. 3G Electric interprets your demand for this OEM part and delivers it with specialist support across 14 industrial departments — including electrical, power transmission, and controls — backed by deep expertise in combustion, pumps, and controls as an authorised distributor.

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Technical Specifications

Parameter	Value
AC	240V
Type	25kA at 120/240V AC, Adj, Lug, ABC, Q4
Poles	3
Series	Q4
Max. AIR Rating	25kA at 120/240V AC
Phase Connection	ABC
Instantaneous Trip	Adjustable
Terminal Connection	Lug
Manufacturer Part Number	Q4L3300