The EF1250DU are self-supplied electronic overload relays, which means no extra external supply is needed. It offers reliable 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 (N.C.), signal contact (N.O.), automatic or manual reset selectable, trip-free mechanism, STOP and TEST function and a trip indication. Busbar kits are available as accessory for contactor mounting.
Contactors, Motor Circuit Breakers and Accessories
EF1250DU-1250 Electronic Overload Relay 375 ... 1250 A
Nortécnica Ref:
EAN:
7320500513880
Description
Technical Information
Attributes
Mounting method
-
Width
350
Height
198
Depth
425
Número de contatos auxiliares como contato normalmente aberto
-
Número de contatos auxiliares como contato normalmente fechado
-
External power supply required
No
Número de contatos auxiliares como contato de comutação
-
Rated control supply voltage AC 50 Hz
-
-
Rated control supply voltage AC 60 Hz
-
-
Rated control supply voltage DC
-
-
Voltage type operating voltage
AC
Release class
-
Rated switch current
1250
Type of electrical connection of main circuit
-
Operating voltage AC 50 Hz
1000
1000
Operating voltage AC 60 Hz
1000
1000
Operating voltage DC
1000
1000
Adjustable current range
-
-
Voltage type for actuating
-
Reset function input
-
Reset function automatic
-
Reset function push-button
-
Brands
ABB
Long Description
The EF1250DU are self-supplied electronic overload relays, which means no extra external supply is needed. It offers reliable 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 (N.C.), signal contact (N.O.), automatic or manual reset selectable, trip-free mechanism, STOP and TEST function and a trip indication. Busbar kits are available as accessory for contactor mounting.