WEG MPW40-3-D025 is a manual motor protector overload relay from the MPW40 series, designed for reliable motor circuit protection. This unit features an adjustable trip current range of 1.6 to 2.5 amps, providing precise overload and short-circuit protection for fractional horsepower motors. It is engineered for easy manual reset and installation in motor control applications, ensuring equipment safety and operational continuity.

The MPW Motor-protective Circuit-breakers are a compact solution for the protection of electric circuits, and operation and protection of motors up to 45kW (380V) or 55kW (440V). With high breaking capacity, thus allowing the installation in specific applications with high short-circuit current. They assure complete protection for electric circuits and motors through thermal and magnetic releases, where the thermal protection may be set to protect against overloads and is equipped with a differential mechanism with phase-loss sensitivity, and the magnetic protection is set at 13xIn for short-circuit protection.

There are two available models, ON-OFF through pushbuttons (MPW16) or through a handle (MPW25/65/100), and both models have trip indication, which allows the operator to visualize the status of the breaker. The starting handle can be locked with a padlock on "OFF" position, ensuring safety during maintenance.