Purpose
The EPS is intended as a safety device for 3-phase electric motors. It is extremely efficient for expensive applications where reliability is essential, like for elevators, transporters, hoists, fans, centrifuges, compressors, etc.

Functioning
The relay controls loads for all phases. Based on the values preset by the user, as well as the actual current consumed by the motor, the operation of the motor is analysed by the relay's CPU. By comparing the operation of the motor in question with model characteristics stored in the CPU, the device detects all defects very quickly and accurately, and immediately switches off the motor.
 

Security Features
     * thermal protection
     * protection against mechanical overload
     * protection against man stall
     * protection against frequent restarts
     * protection against phase collapse
     * protection against load unbalance
     * protection against earth fault
 

Additional Features
     * initial light signalling of engine overload
     * selective signalling of trip cause
     * remote relay motor control directly from industrial controllers
     * motor's thermal memory
 

EPS VERSIONS
The EPS is available in seven current versions: 5 A, 10 A, 16 A, 25 A, 45 A, 63 A, and 100 A. The actual working current set value range for each version is from 62 to 100% of the relay's rated current (0.625÷1×In). Therefore, the selection of a proper relay depends on the power of the engine to be protected and its rated current. For engines with power between several hundred watts and 55 kW, the EPS with a proper set current range can be used, whereas more powerful units require the 5A EPS version with additional external current transformers.
 

  ⇒ to cooperating with current transformer

Technical data