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ABB EF370-380 ELECTRONIC OVERLOAD RELAY 115 ... 380 A EF370

Product Code: EF370

The EF370-380 is an self-supplied electronic overload relay, which means no extra external supply is needed. It offers reliable and fast protection for motors in the event of overload or phase failure. Easy to use like a thermal overload relay and compatible with standard motor applications, the electronic overload relay is convincing, above all, due to its wide setting range, high accuracy, high operational temperature range and the possibility to select a trip class (10E, 20E, 30E). Further features are the temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP- and Test function and a trip indication. The overload relays are connected directly to the contactors. EF370 has ATEX and IECEx certification 1) 1) ATEX is valid for products produced from week 42, 2014. IECEx is valid for products produced from week 15, 2017.

Technical Specifications

Current Setting Range (A) 115
Main Circuit Electrical Connection Screw Connection
No. of Normally-closed Auxiliary Contacts 1
No. of Normally-open Auxiliary Contacts 1
Release Class Adjustable
Reset Function Automatic
Brand ABB
Auxiliary Contacts 1NO/1NC
Degree of Protection IP20 (Housing)
Dimensions (mm) 105W x 187.6H x 122.8D
Mounting Type Direct Attachment
No. of Poles 3
Pollution Degree 3
Power Loss (W) 0.37/pole
Rated Frequency (Hz) 50/60
Rated Impulse Withstand Voltage (kV) 8
Rated Insulation Voltage (V) 1000
Rated Operational Voltage AC (V) 1000
Short-Circuit Protective Device 1600A, fuse type gG
Suitable For AF265 - AF370
Thermal Current Setting Range (A) 115 - 380
Trip Class 10E, 20E, 30E

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