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Product Specifications:
| Item | Bolt On Circuit Breaker |
| Ac Voltage Rating | 120/240V AC |
| Amps | 40A |
| Circuit Breaker Actuator | Paddle |
| Circuit Breaker Mounting Style | Bolt On |
| Circuit Breaker Type | Standard |
| Compatible Panelboard/load Center Series | Series QO |
| Dc Voltage | 48V DC |
| Dc Voltage Rating | 48V |
| Depth | 2.91" |
| For Use With | Square D Nqod Panelboards |
| Frame Size | 100A/QO |
| Length | 3 3/25" |
| Max. Air Rating | 10kA |
| Max. Air Rating | 10 kA At 120/240V AC |
| Max. Operating Temp. | 104°F |
| Max. Wire Size | 2 AWG |
| Min. Operating Temp. | 77°F |
| Min. Wire Size | 8 AWG |
| Number Of Poles | 2 |
| Phase | Single |
| Terminal Connection | Lug |
| Terminal Connection Type | Lug |
| Width | 1 1/2" |
Shipping Info:
| Ship weight (kg) | 0.26 |
| Ship height (cm) | 7.39 |
| Ship length (cm) | 7.92 |
| Ship width (cm) | 3.81 |
| HS code | 8536200040 |
| Country of Origin | MX |
Product Details:
- Square D QOB240 is an HACR-rated miniature circuit breaker suitable for QOB Series load centres and NQ / NQOD panelboards.
- This 2-pole Square D circuit breaker has a current rating of 40 A, voltage rating of 120 / 240 V and a maximum current interrupting capacity of 10 kA at 120 / 240 V.
- This circuit breaker includes a terminal nut that can accommodate a copper / aluminium wire of sizes ranging from 8 to 2 AWG.
Product Variants
| Product | Model | Number Of Poles | Amps | Depth | Terminal Connection | Max. Air Rating | Dc Voltage | Terminal Connection Type | Min. Wire Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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QOB115CAFI | 1 | 15A | 2.91" | Pressure Plate | 10 kA At 120/240V AC | Not Rated | Screw Clamp | 12 AWG, 14 AWG | €382.10 | |
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QOB120CAFI | 1 | 20A | 2.91" | Pressure Plate | 10 kA At 120/240V AC | Not Rated | Screw Clamp | 12 AWG, 14 AWG | €461.87 | |
![]() |
QOB120VHCAFI | 1 | 20A | 2.91" | Pressure Plate | 22 kA At 120/240V AC | Not Rated | Screw Clamp | 12 AWG, 14 AWG | €813.95 | |
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QOB110 | 1 | 10A | 2.91" | Pressure Plate | 10 kA At 120/240V AC | 48V DC | Screw Clamp | 14 AWG | €24.20 | |
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QOB115 | 1 | 15A | 2.91" | Pressure Plate | 10 kA At 120/240V AC | 48V DC | Screw Clamp | 14 AWG | €22.75 | |
![]() |
QOB120 | 1 | 20A | 2.91" | Pressure Plate | 10 kA At 120/240V AC | 48V DC | Screw Clamp | 14 AWG | €24.28 | |
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QOB130 | 1 | 30A | 2.91" | Pressure Plate | 10 kA At 120/240V AC | 48V DC | Screw Clamp | 14 AWG | €25.45 |
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SQUARE D QOB240 Circuit Breaker, 40 A, 120 / 240 V
€44.71 /unit







