# WEG RWB40E-3-A4U040 CWB9-38 ELEC OVERLOAD 8A - 40A Overloads

**Manufacturer:** WEG  
**MPN:** `RWB40E-3-A4U040`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | WEG |
| Manufacturer name | WEG |
| Manufacturer | WEG |
| CategoryL1 | Electrical |
| CategoryL2 | Relays |
| CategoryL3 | Overload Relays |
| Extra Product Name | WEG RWB40E-3-A4U040 CWB9-38 ELEC OVERLOAD 8A - 40A Overloads |
| moq | 1 |
| MPN | RWB40E-3-A4U040 |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 2852822 |
| snippet | Shop WEG RWB40E-3-A4U040 and trust MRO to be your reliable WEG supplier to experience the difference that quality and expertise can make. Trusted since 1898. Fast, Free Shipping. |
| tierMinQty1 | 1 |
| tierPrice1 | 81.00 |
| Reset | Automatic/manual |
| Current range | 8-40 A |
| Type | Electronic |
| Maximum insulation voltage | Ui = 690 V |
| Trigger class | 10.20.30 |
| Application/mounting | For contactor CWB |
| Number of poles | 3 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| MRO Supply | 2852822 | 81.0 | 1 | None | 1 |
| RS Delivers | 122-1047 | 172.11 | 1 | None | 1 |
| Applied Industrial | 113858791 |  |  | None | 1 |
| Automation Direct | RWB40E-3-A4U040 | 83.0 | 1 | 159 | 1 |
| motorsandcontrol.com | RWB40E-3-A4U040 | 90.38 | 1 | 2 | 1 |
| kscdirect.com | WEG RWB40E-3-A4U040 | 118.55 | 1 | None | 1 |
| industrialrefrigerationparts.com | RWB40E-3-A4U040 | 122.01 | 1 | None | 1 |
| Galco | RWB40E-3-A4U040-WEG | 104.15 | 1 | None | 1 |
| RS Online | 1221047 |  |  | None | 1 |
| Walker Industrial | RWB40E-3-A4U040 | 81.2 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/3000000/3190500/part_--RWB40E3A4U040---WEG--ea8f2136e1.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp