Skip to product information
1 of 2


Weg RWB40E-3-A4U008 Electronic Overload

Weg RWB40E-3-A4U008 Electronic Overload

Regular price $51.52
Regular price Sale price $51.52
Sale Sold out
Shipping calculated at checkout.

Weg RW-E series of electronic overload relays are designed to protect expensive motors from damage due to overloads, phase loss, and current unblances. The Weg electronic relay is up to 87% more energy efficient compared to thermal overload relays (below 0.38W at 25 load curent), saving on both energy and cabinet ventilation demands.

The Weg solid state electronic overloads also have a much larger settable current range as compared to the thermal overloads, thus reducing spare parts inventory. The entire current range from 0.4 to 820 amps is covered by just 4 RW-E products.

Standard Features

  • Adjustable trip class 10,20 or 30
  • Wide range settable current overload value
  • Overload, phase-loss and current unbalance protection
  • Red flag trip indication
  • Isolated NO and NC auxiliary contacts
  • Selectable Manual/Auto/Remote RESET button
  • Low energy consumption and low power dissipation
  • Direct mounting below Weg contactors, or can use stand-alone mount accessory


Catalog No. RWB40E-3-A4U008
Settable Current Range 1.60-8.00
For contactors CWB9, CWB12, CWB18, CWB25, CWB32, CWB38


See our Weg Electronic Overload page for in-depth details.



See our Weg Overload Relay Accessories page for the following accessories

Stand-alone Mounting Kit
Connector Links for RWM112E and RWM420E overloads
Panel Reset Pushbutton
View full details