# Weg RWB40E-3-A4U040 Electronic Overload Relay 8-40A 3-Pole Class 10/20/30 for CWB Contactors - MROSupply.com

***Weg RWB40E-3-A4U040 electronic overload relay with adjustable 8-40A current range, 3-pole protection, and selectable Class 10, 20, or 30 trip characteristics. Designed for direct mounting to Weg CWB series contactors, it provides reliable motor overload and phase-loss protection in industrial control circuits. Features automatic or manual reset operation and a maximum insulation voltage of 690V.***



## Product details:

- Catalog number: RWB40E-3-A4U040
- SKU: 2852822
- Price: ***$95.56*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [WEG](https://www.mrosupply.com/brands/weg/)
- Category: 
    - [Overload Relays](htts://www.mrosupply.com/electrical/relays/overload-relays/)
    - [Relays](htts://www.mrosupply.com/electrical/relays/)
    - [Electrical](htts://www.mrosupply.com/electrical/)
- Unit of measure: each
- Weight: 1.000 lb
- Technicall support: contact supplier for technical support on 800-ASK-4WEG


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Application/mounting: For contactor CWB
  

  
- Current range: 8-40 A
  

  
- Maximum insulation voltage: Ui = 690 V
  

  
- Number of poles: 3
  

  
- Reset: Automatic/manual
  

  
- Trigger class: 10.20.30
  

  
- Type: Electronic
  


## Product's reviews:
- Very pleased - Easy to order, fast delivery, great price and unit works great. couldn't be more pleased with this purchase.
- Weg premium efficiency motors - MRO Supply Rocks - My motor shipped the next day, free shipping, and their price was the lowest that I could find. I will be pricing all our motors with them first.
- Web motors - The best price I have found plus great and fast shipping would recommend
- Large motor purchased - Great website. prices very competitive. Would use again.