Square D 3G-OTH-21882 — Technical Specifications

Name: Square D 3G-OTH-21882 SQUARE D Miniature Circuit Breaker: 40 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 1 Poles (MPN QO140). Key specifications — Phase: Single; Amps: 40 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 10kA at 120/240V AC; For Use With: QO Load Centers and NQ Panelboards; Brand: SQUARE D.
Brand: Square D

The SQUARE D QO140 is a 40 A, single-phase, plug-in miniature circuit breaker from the QO Series, rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and NQ Panelboards, this 1-pole breaker provides overcurrent protection in residential and commercial electrical distribution systems.

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Technical Specifications

Parameter	Value
AC	120/240V
Amps	40 A
Type	Single Phase, 10kA at 120/240V AC
Brand	SQUARE D
Phase	Single
Poles	1
For Use With	QO Load Centers and NQ Panelboards
Max. AIR Rating	10kA at 120/240V AC
AC Voltage Rating	120/240V AC
Manufacturer Part Number	QO140