Digital Earth Fault Relay – EF18D

Built for Safety

  • Flame Retardant material tested against UL94v-0 fire standards
  • MTB ANSI 86 Lockout Relay
  • Enhanced test trip function prevents accidental activation of the relay’s ‘Test Trip’ command

MTB

MTB or Mechanical Trip Button is a proprietary lockout feature that prevents an operator from re-energizing the circuit breaker before isolating the fault and resetting the MTB.

When activated, the MTB latches the output contacts and continues to indicate the presence of a fault until it is cleared, and the relay reset. All these are achieved without the need for an auxiliary power supply to the relay.

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Tripping Events Recording

4 tripping events include the types, magnitude of the fault with data and time stamping. It reduces the time needed on fault tracing.

High Contrast LCD Display

Viewing all settings, live value, tripping event with date & time stamping in one screen. User friendly and easy to use.

Rated IP31 (front) and IP20 (rear)

Protection against foreign objects and water with IP31 (front) and IP20 (rear).

Communications

Built-in Modbus-RTU to communicate with SCADA, Building Management System (BMS) and Energy Management Information System (EMiS).

Tested in accordance with IEC standards

Product safety, EMC compatibility, environmental, vibration, shock and bump tests.

Technical Data

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