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$48.50
| Voltage | AH/kVA | Length | Width | Height | Weight |
|---|---|---|---|---|---|
| 240VAC | 50 A | 7.25" | 6.25" | 5.58" | 6 lbs |
| Voltage | 240VAC |
| Amp/H | 50 A |
| Length | 7.25" |
| Width | 6.25" |
| Height | 5.58" |
| Weight | 6 lbs |
Genuine Square D QOB350 3-pole bolt-on breakers at closeout pricing. Perfect for maintaining existing QOB panelboards, stocking your service truck, or finishing a project where matching OEM hardware matters. Limited surplus inventory — once these are gone, they will not be reordered.
The QOB350 is a 3-pole, 50 A thermal-magnetic miniature circuit breaker designed for 240 V AC applications. Its bolt-on mounting secures directly to compatible Square D QOB series panelboards, providing reliable protection for three-phase branch circuits. With an interrupting rating of 10 kA at 240 V and LI (long-time & instantaneous) trip functions, it’s a robust choice for both new installations and replacement work.
| Parameter | Value |
| Type | QOB miniature circuit breaker |
| Poles | 3-pole |
| Voltage rating | 240 V AC |
| Amperage rating | 50 A |
| Mounting style | Bolt-On (QOB panelboards) |
| Protection | Thermal magnetic |
| Trip functions | LI — Long-Time and Instantaneous |
| Interrupting rating (AIC) | 10 kA @ 240 V |
| Manufacturer | Schneider Electric / Square D |
