DTL Earth Fault Relay – EF18

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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Protection Degree

IP31 (front) and IP20 (rear). IP65 optional.

Tested in accordance with IEC standards

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

Technical Data

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