Phase Sequence Control Relay
Phase-free or neutral control relay
Phase Sequence Control Relay
Phase-free or neutral control relay

Phase or neutral fault monitoring relay

€130.97 Tax included

€108.24 tax excl.

Phase failure, low voltage, loss of neutral on three-phase lines, the relay detects when the voltage on all phases exceeds 85% of the rated voltage and the neutral is present, the R output switches on. When a fault occurs, the relay disconnects.

Associated to a contactor or circuit breaker, it allows to protect machinery and installations.

Reference: E1YF400V 01-0,85

Representative image for illustrative purposes, the item supplied will correspond to the specifications indicated.

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Electronic relay for monitoring the presence of supply voltage on three-phase lines with neutral with an output contact, it can also be used to monitor single-phase lines.

This relay associated to contactors or circuit breakers allows to protect machinery or general installations in case of loss of one of the phases, neutral failure or undervoltage (U

Operation:

The output relay R switches on if all phase-to-neutral voltages are above 85% of the rated voltage, the LEDs light up.

This relay allows monitoring of the following parameters:

  • Phase failure monitoring. When a fault occurs on any of the three phases, the output relay R disconnects.
  • Neutral fault monitoring. When a neutral fault occurs, the output relay R disconnects.
  • Undervoltage control (U). If one of the phase-to-neutral voltages drops below 85% of the nominal voltage, the green LED goes off and output relay R switches off.

Diagrama de funcionamiento E1YF

Technical characteristics:

  • Manufacturer: TELE
  • Part No.: E1YF400V 01-0.85
  • Supply voltage: = controlled voltage. L1-L2--L3 3x400V.
  • Permissible tolerance: ±30%...+10% Un.
  • Nominal consumption: 5VA.
  • Rated frequency: 48-63 Hz.
  • Resetting time: 500 ms.
  • overvoltage category: III (according to IEC 60664-1).
  • Permissible impulse voltage: 4 kV.
  • Measuring quantities: 3x400V/230V (48...63Hz).
  • Measuring input: N-L1-L2-L3.
  • Permissible overvoltage: 110% Un.
  • Us threshold value: fixed, 195.5V (F-N)
  • Hysteresis: fixed, approx. 5%.
  • Repetition accuracy at constant conditions: ≤2%.
  • Temperature influence: ≤ 1% per ºC.
  • Trigger time: approx. 200 ms.
  • Green LED ON: Power supply (relay in service).

Output circuit:

  • Number of contacts switched: 1 NAC.
  • Rated voltage: 250Vac.
  • Switching capacity: 5A/250Vac.
  • Fuse protection: 5A fast-acting.
  • Mechanical durability: 20x10⁶ operations.
  • Electrical durability at 1000VA resistive load: 2x10⁵ operations.
  • Switching frequency at 100VA, resistive load: max 30 man/min.
  • Switching frequency at 1000VA, resistive load: max 6 man/min.

CONNECTION

Conexiones relé control de tension

DIMENSIONS

Dimensiones rele de control E1PF ENYA adajusa

For further information you can download the technical data sheet by clicking on the "Attachments" tab.
Material for professional use, install in compliance with the regulations in force at the place of installation.

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