EF370-380_ABB_PRODUCT_吉林易择科技技术发展有限公司

Key Features Self-supplied electronic overload relay (no external supply needed) Protection against motor overload and phase loss Wide current setting range: 115–380 A Selectable trip classes: 10E, 20E, 30E Automatic or manual reset Trip-free mechanism and status indication Temperature compensation for wide ambient range STOP and TEST functions Direct mounting onto block contactors Sealable operating elements for safety Technical Specifications Parameter Value / Detail Type Self-supplied electronic overload relay Current Setting Range 115 … 380 A Number of Poles 3 Auxiliary Contacts 1 NC, 1 NO Rated Voltage 600 V AC/DC (Aux), 1000 V AC (Main) Rated Insulation Voltage (Ui) 1000 V Impulse Withstand Voltage (Uimp) 6 kV (Aux), 8 kV (Main) Frequency 50/60 Hz & DC capable (aux) Trip Classes 10E / 20E / 30E Reset Options Manual / Automatic Ambient Temperature Range −25 to +70 °C Dimensions (W×H×D) 105 × 187.6 × 122.8 mm Weight ~1.338 kg Connection Type Screw Terminals Mounting Direct on compatible contactors Enclosure Rating IP10 / IP20 (depending on installation) Standards Compliance IEC/EN 60947 series; UL; RoHS

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DESCRIBE

The ABB EF370‑380 is a self-supplied electronic overload relay designed for motor protection against overload and phase failure. It provides reliable and fast protection similar to traditional thermal overload relays but with enhanced accuracy and adjustable settings. The relay features a wide current adjustment range and selectable trip class options to suit various industrial motor applications. It can be directly mounted on compatible contactors and offers temperature compensation, automatic/manual reset, and clear trip status indication.

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