QO 40 Amp 2-Pole 240V Bolt-On Circuit Breaker
SKU: EQOB240
Need More?
Need more than what's currently in stock? We can help!
Contact us via our website chat or call us at 1-833-PAULBHD to inquire about availability and to place your order.
$42.99
Features
Specifications
Part of the proven QO family, this 40A miniature circuit breaker is engineered for reliable performance in commercial and industrial power distribution. The 2-pole device features a bolt-on mounting configuration, ensuring a tight, vibration-resistant connection within Square D NQ and NQOD panelboards. Rated at 10kAIC for 120/240VAC systems, the QOB240 includes a Visi-Trip red indicator flag to simplify maintenance and reduce downtime during electrical faults.
| Brand | Square D |
|---|---|
| Date Added | May 28, 2026 |
| UPC | 785901443872 |
| Store Location (Lititz, PA) | Aisle 08, Section D2 |
| Package Length (in) | 3.70" |
| Package Width (in) | 3.50" |
| Package Height (in) | 1.60" |
| Manufacturer Part Number | QOB240 |
| Series | QOB |
| Part Number | QOB240 |
| Amperage | 40A |
| Voltage | 120/240VAC, 48VDC |
| Poles | 2 |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 48VDC |
| Mounting Style | Bolt-On |
| Terminal Type | Box Lugs |
| For Use With | NQ Panelboards, NQOD Panelboards |
| Trip Technology | Thermal Magnetic |
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Wire Gauge | 8-2 AWG (Al/Cu) |
| Max Wire | 2 AWG |
| Min Wire | 8 AWG |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |