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Phase control relays

Phase control relays – effective protection of three-phase installations In the category modular equipment you will find phase control relays , which are used to monitor the correctness of voltage in three-phase installations. It is an indispensable element in systems powering motors, pumps or other sensitive industrial equipment, where incorrect phase sequence or phase loss can lead to...

Phase control relays – effective protection of three-phase installations

In the category modular equipment you will find phase control relays, which are used to monitor the correctness of voltage in three-phase installations. It is an indispensable element in systems powering motors, pumps or other sensitive industrial equipment, where incorrect phase sequence or phase loss can lead to serious failures.

 

Why is it worth using phase control relays?

A phase control relay enables continuous monitoring of power supply parameters and immediate reaction in the event of detection of:

  • missing one or more phases,
  • incorrect phase sequence,
  • voltage asymmetry between phases,
  • too high or too low voltage in one of the phases.

In the event of an irregularity, the device cuts off the power supply, protecting the receivers from damage. Mounting on DIN rail allows for easy integration of the relay with other equipment in the switchboard.

 

Where are phase loss relays used?

Phase loss and sequence relays are used in many industries and installations, such as:

  • motor drives and industrial equipment,
  • air conditioning and ventilation systems,
  • submersible pumps and hydrophores,
  • elevators, cranes and horizontal transport,
  • photovoltaic installations with three-phase power supply.

In combination with contactors and minimum current breakers, create a comprehensive protection system for high-power devices.

 

The most important functions and technical parameters

When choosing a three-phase relay, it is worth paying attention to the following features:

  • operating voltage range (e.g. 3 × 400 V AC),
  • adjustable asymmetry threshold and response time,
  • built-in LEDs indicating the status
  • compact housing adapted for installation in modular switchboards,
  • resistance to interference and reliable operation in difficult conditions.

The phase voltage monitoring relays we offer come from proven manufacturers, which ensures their high quality and long service life.

 

Safe installation thanks to power supply monitoring

Maintaining correct power supply parameters is crucial in every three-phase system. Therefore, phase loss relays should constitute the basic protection in every industrial or building switchboard. Thanks to them, you can quickly respond to failures and protect your equipment from costly damage.

 

Expand your system with additional security modules

We also encourage you to familiarize yourself with other categories, such as surge arresters, energy meters and residual current circuit breakers. All these elements together create a modern and safe electrical installation system.

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Microprocessor phase...

Microprocessor phase sequence and phase loss sensor with adjustable lower and upper voltage thresholds

Stopień ochrony IP: IP20 Zasilanie: 400V Liczba modułów: 1 Zaciski: zaciski śrubowe Temperatura pracy: -25°C /+40°C Max. prąd obciążenia: 2 x 8 A Współpraca z agragatami prądotwórczymi: TAK Kontrola zaniku / asymetrii faz: TAK Kontrola kolejności faz: TAK Kontrola styków stycznika: NIE Element wykonawczy: 2 × przekaźnik Separacja styku: TAK Asymetria napięciowa zadziałania: 20÷80 V
zł244.00,
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