# Miniature Circuit Breaker, 40 A, 120/240V AC, 2 Pole, Bolt On Mounting Style, QOB Series

Miniature Circuit Breaker, Amps 40 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type Ground Fault Circuit Interrupter, Number of Poles 2, DC Voltage Rating Not Rated, Circuit Breaker Actuator Paddle, Circuit Breaker Mounting Style Bolt On, Compatible Panelboard/Load Center Series NQ, QO, Phase Single, Series QOB, Max. AIR Rating 10kA at 120/240V AC, For Use With QO Load Centers and NQ Panelboards, Terminal Connection Lug, Frame Size 100A/QO, Length 4.12 in, Width 1.5 in, Depth 2.91 in

graingerSKU: 2GLG8, mscSKU: , zoro\_no: G1904156, mongo\_id: 65bbe58c3aaddbd5a9fcda0f

## Details

- **Price:** 579.99 USD
- **Vendor:** Square D
- **Type:** Circuit Breakers
- **Tags:** DESCRIPTION_UPDATE

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 579.99 USD | In stock |

## Images

- Z_-ttyfo5oy.JPG

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> Source: [The Tools Man](https://www.thetoolsman.com/products/square-d-miniature-circuit-breaker-40-a-120240v-ac-2-pole-bolt-on-mounting-style-qob-series-qob240gfi)
> Updated: 2026-09-02