Square D 3G-OTH-609442 — Technical Specifications

Name: Square D 3G-OTH-609442 Molded Case Circuit Breaker: 300 A Amps, 25kA at 120/240V AC, Adj, Lug, Non-Applicable, 2 Poles, Q4 (MPN Q4L2300). Key specifications — Terminal Connection: Lug; Phase Connection: Non-Applicable; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
Brand: Square D

The Square D Q4L2300 is a Q4-Frame molded case circuit breaker rated for 300 A with a maximum AIR rating of 25kA at 120/240V AC. It features 2 poles, adjustable instantaneous trip, and lug terminal connections. This unit is part of the LA-, LH-, and Q4-Frame series, designed for overcurrent protection in industrial electrical distribution systems.

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Technical Specifications

Parameter	Value
Type	25kA at 120/240V AC, Adj, Lug, Non-Applicable, Q4
Poles	2
Series	Q4
Max. AIR Rating	25kA at 120/240V AC
Phase Connection	Non-Applicable
Instantaneous Trip	Adjustable
Terminal Connection	Lug
Manufacturer Part Number	Q4L2300