Description
The EF19 and EF45 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. The overload relays are connected directly to the contactors.
| ABB Inc. | |
|---|---|
| Product Category | Protective Relays and Monitoring Relays |
| Product Number | EF19, EF45 |
| Product Name | Electronic Overload Relays for Contactor AF09 ... AF38 |
| Voltage Sensitive Relay | Overvoltage Protection |
| Power (Phase) Sensing | Phase Failure (Loss) |
| Features | Automatic Reset; Visual Indicator |
