# Square D QOU340-1021 3 Pole Circuit Breaker

**Manufacturer:** Square D  
**MPN:** `QOU340-1021`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Square D |
| Manufacturer name | Square D |
| Manufacturer | Square D |
| CategoryL1 | Square D QOU340-1021 3... |
| Extra Product Name | Square D QOU340-1021 3 Pole Circuit Breaker |
| UPC | 785901518624 |
| Voltage | 240 |
| moq | 1 |
| MPN | QOU340-1021 |
| multiple | 1 |
| qtyInStock | Low stock |
| SKU | QOU340-1021 |
| tierMinQty1 | 1 |
| tierPrice1 | 213.29 |
| Brand | Square D |
| Series | QOU |
| Amperage | 40 |
| Poles | 3 |
| Phase | 3 |
| Mounting Type | Unit |
| Approval | CSA, UL, IEC |
| Interrupting Rating | 10 kA 120/240 V AC, 10 kA 240 V AC, 10 kA 120 V AC, 5 kA 48 V DC |
| Frame Type | QOU |
| Connection Type | Bolt-On |
| Protection | Thermal Magnetic |
| Functions | LI - Long-Time and Instantaneous |
| Terminal Connection | Slotted Box Lug (Line and Load) |
| Length (in) | 2.95 |
| Width (in) | 3 |
| Height (in) | 4.05 |
| Wire Gauge | AWG 14, AWG 2 Aluminum/Copper |
| Mpn | QOU340-1021 |
| Upc | 785901518624 |
| Gtin | 785901518624 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| superbreakers.com | QOU340-1021 | 213.29 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/91000000/91291000/part_--QOU3401021---SquareD--8e2dbbe53e.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp