# Panelboard Main Breaker Kit, For Use With Square D L-Frame Panelboards, Amps 400, Includes (1) Cover Plate, (1) Label, (1) Mounting Plate, (1) Screw Set , (2) Bracket for Support , (2) Rail Extension, (2) Rail Splice, (2) Washers, (3) Connector, 347V AC, Phase Three, Frame Size 400A/L, Compatible Circuit Breaker Series LAL, LHL, Length 62.0 in, Width 20.0 in, Depth 5.75 in

**Manufacturer:** Square D  
**MPN:** `N400M`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Square D |
| Manufacturer name | Square D |
| Manufacturer | Square D |
| CategoryId | 4837 |
| CategoryIdL1 | 23 |
| CategoryIdL2 | 4530 |
| CategoryIdL3 | 17875 |
| CategoryIdL4 | 4837 |
| CategoryL1 | Electrical Supplies |
| CategoryL2 | Power Distribution & Circuit Protection |
| CategoryL3 | Load Centers & Panel Boards |
| CategoryL4 | Load Centers |
| DimensionUnit | inch |
| GTIN | 785901787617 |
| GraingerSku | 22P071 |
| UPC | 785901787617 |
| UnitOfMeasure | EA |
| Voltage | 347V AC |
| Weight | 12.95 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | ZZ |
| height | 2.6 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 25.4 |
| moq | 1 |
| MPN | N400M |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G4574473 |
| tierMinQty1 | 1 |
| tierPrice1 | 558.17 |
| url | https://www.zoro.com/square-d-panelboard-main-breaker-kit-400-amps-347v-ac-n400m/i/G4574473/ |
| width | 14.5 |
| Width | 20.0 in |
| Depth | 5.75 in |
| Length | 62.0 in |
| Frame Size | 400A/L |
| Length (Straight Wireway) | 62.0 in |
| Item | Panelboard Main Breaker Kit |
| Phase | Three |
| Circuit Breaker Type | LI (factory assembled only) \|\| LC (factory assembled only) \|\| LAL \|\| LHL |
| Amps | 400 |
| For Use With | Square D L-Frame Panelboards |
| Amps AC | 400 |
| Standards | cULus |
| Includes | (1) Cover Plate, (1) Label, (1) Mounting Plate, (1) Screw Set , (2) Bracket for Support , (2) Rail Extension, (2) Rail Splice, (2) Washers, (3) Connector |
| Compatible Circuit Breaker Series | LAL, LHL |
| Accessory Type | Panelboard Main Breaker Kit |
| Tightening Torque | 28.2-31.1 N.m |
| Accessory / Separate Part Category | installation accessory |
| Product Destination | circuit breaker 400-400 A |
| Ground Bar Kit | cover plate 1 \|\| mounting plate 1 \|\| bracket for support 2 \|\| screw set 1 \|\| connector 3 \|\| rail extension 2 \|\| rail splice 2 \|\| label 1 \|\| washer 3 |
| Package Quantity | 1 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G4574473 | 558.17 | 1 | None | 1 |
| Grainger | 22P071 | 838.0 | 1 | None | 1 |
| Allied Electronics | 71552650 |  |  | None | 1 |
| superbreakers.com | N400M | 231.13 | 1 | None | 1 |
| gordonelectricsupply.com | N400M |  |  | None | 1 |
| Newark | 80C2480 | 558.18 | 1 | None | 1 |
| sustainablesupply.com | C2682191 | 338.56 | 1 | None | 1 |
| Crescent Electric Supply Co | N400M |  |  | None | 1 |
| steinerelectric.com | 62970 | 322.29 | 1 | None | 1 |
| grainger.ca | SQDN400M | 801.42772714 | 1 | None | 1 |
| Crescent Electric Supply Co | 2105177 |  |  | None | 1 |
| United Electric | 73918 | 772.2 | 1 | None | 1 |
| us.rs-online.com | 71552650 | 786.39 | 1 | 1 | 1 |
| mostelectric.com | N400M | 220.19 | 1 | None | 1 |
| mayerelectric.com | SQDN400M | 826.56 | 1 | 3 | 1 |
| crescentelectric.com | 136930 | 891.43 | 1 | 4 | 1 |

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