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Manufacturer: ZIEHL

MSF220VL - PTC Relay - T221674

  • T221674
  • Product Type IP54 motor, IP20 electronics
  • Additional information Glass fiber reinforced PBTP material
  • Supply voltage AC/DC 24 - 240 V
  • Execution Customer specific / IP 6K9K
  • Certificate IP44 / depending on mounting and position as per EN 60034-5
  • Output function Outputs/Relays
  • Measured value Electronic protection against reverse polarity and locked rotor.

The MSF220VL is particularly suitable for monitoring of temperatures at dry transformers, when also the temperature of the core shall be measured. Monitoring of core temperature is especially required in rectifier transformers because of harmonics causing heat in the core.

An intelligent control prolongs automatically the runtime of a cooling-fan, depending on the load of the transformer. Each PTC-circuit is monitored for break and short circuit. This reduces the probability of false alarms. Relays in operating-current mode prevent from a trip-signal when switching on supply voltage.

The device can be adapted to different applications with 4 programs:

  1. Fan-control - alarm - trip (winding) - trip (core)
  2. Alarm - trip (winding) - trip (core) - alarm (fault)
  3. Fan-control - alarm - trip (winding) - alarm (fault)
  4. Fan-control with hysteresis T1/T2 - alarm – trip (winding) - time relay

Overview of functions

  • 4 inputs for PTC
  • Intelligent control of fan
  • Automatic fan-test 1x / week
  • electronic reclosing lock for alarms (trip) connectable
  • Monitoring of sensors
  • Test-button
  • Simple testing with disconnectable monitoring of break and short circuit (for 10 minutes)
  • cURus
  • LEDs for alarms, states of relays and sensors
  • Housing for mounting on DIN-Rail or wall-mount(option)
  • Mounting height 55 mm
  • Universal supply voltage AC/DC 24-240 V
  • DEWA-standard for Dubai
  • Accessory: Front mounting kit type ER4
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  • Product Type IP54 motor, IP20 electronics
  • Additional information Glass fiber reinforced PBTP material
  • Supply voltage AC/DC 24 - 240 V
  • Execution Customer specific / IP 6K9K
  • Certificate IP44 / depending on mounting and position as per EN 60034-5
  • Output function Outputs/Relays
  • Measured value Electronic protection against reverse polarity and locked rotor.

The MSF220VL is particularly suitable for monitoring of temperatures at dry transformers, when also the temperature of the core shall be measured. Monitoring of core temperature is especially required in rectifier transformers because of harmonics causing heat in the core.

An intelligent control prolongs automatically the runtime of a cooling-fan, depending on the load of the transformer. Each PTC-circuit is monitored for break and short circuit. This reduces the probability of false alarms. Relays in operating-current mode prevent from a trip-signal when switching on supply voltage.

The device can be adapted to different applications with 4 programs:

  1. Fan-control - alarm - trip (winding) - trip (core)
  2. Alarm - trip (winding) - trip (core) - alarm (fault)
  3. Fan-control - alarm - trip (winding) - alarm (fault)
  4. Fan-control with hysteresis T1/T2 - alarm – trip (winding) - time relay

Overview of functions

  • 4 inputs for PTC
  • Intelligent control of fan
  • Automatic fan-test 1x / week
  • electronic reclosing lock for alarms (trip) connectable
  • Monitoring of sensors
  • Test-button
  • Simple testing with disconnectable monitoring of break and short circuit (for 10 minutes)
  • cURus
  • LEDs for alarms, states of relays and sensors
  • Housing for mounting on DIN-Rail or wall-mount(option)
  • Mounting height 55 mm
  • Universal supply voltage AC/DC 24-240 V
  • DEWA-standard for Dubai
  • Accessory: Front mounting kit type ER4
Less
Read more
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