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Power Electronics Three-phase Voltage Monitor PT431-8
Voltage Monitors

Power Electronics Three-phase Voltage Monitor PT431-8

Power Electronics Asymmetry & Sequence Monitor Three-Phase PT431-8. It is used to protect asynchronous three-phase motors from anomalies in the electrical power distribution network.

Features:

  • ...

Power Electronics Asymmetry & Sequence Monitor Three-Phase PT431-8. It is used to protect asynchronous three-phase motors from anomalies in the electrical power distribution network.

Features:

  • Monitoring of three-phase network voltage
  • Loss of one or more phases or the neutral
  • Asymmetry of the three phases (adjustable 5-20%)
  • Sequence, overvoltage, and...
See Description & Specifications See Description & Specifications

Top specs

  • Protection Type

    Overvoltage

    Monitors current consumption in Amperes (A). If the connected devices draw more current than the safety limit, the monitor cuts off the supply to prevent overheating of the cables and the risk of fire.

    Undervoltage

    Protects against dangerous voltage drops (e.g. < 190V). It is essential for devices with motors and compressors (air conditioners, refrigerators, pumps), which overheat and are damaged when they try to operate at low voltage.

    Phase Asymmetry

    Checks whether there is a large voltage deviation between the 3 phases (e.g. L1 = 230V, L2 = 180V). Protects three-phase devices from irregular operation, vibrations, and overheating.

    Phase Sequence

    Ensures that the phases are connected in the correct sequence (L1, L2, L3). Prevents three-phase motors and pumps from rotating in reverse, avoiding serious mechanical damage.

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Description & Specifications

Power Electronics Asymmetry & Sequence Monitor Three-Phase PT431-8. It is used to protect asynchronous three-phase motors from anomalies in the electrical power distribution network.

Features:

  • Monitoring of three-phase network voltage
  • Loss of one or more phases or the neutral
  • Asymmetry of the three phases (adjustable 5-20%)
  • Sequence, overvoltage, and undervoltage
  • Neutral use is required
  • Relay with switching contact 10A / 250VAC cat. AC1
  • LED indications RELAY ON and POWER ON
  • Varistor protection (against overvoltages and lightning)
  • Mounting type of terminal block, 8p
  • Operating temperature -20º to +50º C
  • Plastic enclosure / 42 x 89 x 92 mm / IP 41

Manufacturer

Manufacturer Details

Warnings & Safety Information
Placement
Rail
Type
Three-phase
Rated Contact Current
-

Rated Contact Current

Indicates the maximum current intensity (in Amperes) that the device can safely handle.
Digital
No
Protection Type
Overvoltage, Undervoltage, Phase Asymmetry, Phase Sequence

Protection Type

Overvoltage

Monitors current consumption in Amperes (A). If the connected devices draw more current than the safety limit, the monitor cuts off the supply to prevent overheating of the cables and the risk of fire.

Undervoltage

Protects against dangerous voltage drops (e.g. < 190V). It is essential for devices with motors and compressors (air conditioners, refrigerators, pumps), which overheat and are damaged when they try to operate at low voltage.

Phase Asymmetry

Checks whether there is a large voltage deviation between the 3 phases (e.g. L1 = 230V, L2 = 180V). Protects three-phase devices from irregular operation, vibrations, and overheating.

Phase Sequence

Ensures that the phases are connected in the correct sequence (L1, L2, L3). Prevents three-phase motors and pumps from rotating in reverse, avoiding serious mechanical damage.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

32,55 €
14,00 €   shipping cost