# 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:
- Contactor - Excellent service and product
- New 40hp motor - We had our 40hp compressor go down. We determined over the weekend that a motor winding was bad. First think Monday morning I consulted with the techs at MRO and verified that the manufacturer had a replacement in stock so I placed the order. The new motor (600 lbs) arrived on Wednesday... WOW. Granted the motor was in Georgia and we are in Tennessee but still the service and speedy delivery was incredible!
- 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.
- Great service and motor - This company rocks!!! They have done everything right by offering the best price and then delivering the product on time