The Square D exclusive Qwik-Open™ mechanism, with a trip reaction within 1/60th of a second, is standard on all 1P 15 and 20 A QO circuit breakers.

QO breakers come in single-pole, double-pole, and 3-pole breaker options – all ¾-inch in size to save wire. Securely fasten circuit breakers to the panel ...

QO Load Centers are compatible with QO ¾” circuit breakers with Visi-Trip, and feature shielded tin-plated copper bus bars and ...

Rating 4.8

(1,316) · In stock

The Square D QO 40 Amp 1-1/2 in. Double-Pole Circuit Breaker is compatible with QO load centers, QO enclosures and NQOD panel boards. The breaker features a ...

Rating 4.7

(186) · $106.00 · In stock

Brand. Square D ; Current Rating. 125 Amps ; Voltage. 240 Volts ; Product Dimensions. 2.92"D x 1.48"W x 3.5"H ; Circuit Breaker Type. Standard.

Rating 4.8

(1,316) · In stock

The Square D by Schneider Electric QO 50 Amp Two-Pole Circuit Breaker is intended for overload and short-circuit protection of your electrical system.

Find Square D QO circuit breakers at Lowe's today. Shop circuit breakers and a variety of electrical products online at Lowes.com.

Rating 4.8

(528)

Product Dimensions, ‎2.92 x 2.98 x 3.5 inches ; Item model number, ‎SQUARE D - 820746 ; Is Discontinued By Manufacturer, ‎No ; Size, ‎Pack of 1 ; Amperage Capacity ...