Electric motor protection relay RW_E series

phase lossphase unbalanceoverload

The RW_E is meant to assure increased reliability for protection of low voltage three-phase electric motors in sinusoidal 50/60 Hz networks where reliability, low power dissipation and ease maintenance management are mandatory. Description With direct mounting on the contactors or on an individual base, the RW_E electronic overload relays provide protection for electric motors up to 840 A. Main characteristics •Incorporated protections: overload, phase loss and phase imbalance •Available in the three-pole version •Adjustable tripping classes: 10, 20 and 30 •Direct coupling to the CWB and CWM contactors without accessories •Accessory to enable mounting on DIN rail 35mm (EN 50022) or tightened with screws Energy saving Due to its conception and design, the electronic circuits of the RW_E relays present very low energy consumption and smaller thermal dissipation (below 0.38 W up to 25 A); therefore, they contribute to reducing the demand for ventilation in the electrical panel. Built-in protections •Overload •Phase loss •Phase imbalance