Voltage, phase imbalance and sequence relay RNPP-313

Code of product:
NTRNP3130
In stock
€23
5 years: product warranties
The device has been tested for operability
Quality confirmed by EU certificates

More Information

Brand Novatek
Dimensions, mm 1 DIN (18 mm)
Rated operating voltage, V 230/400 AC
Power supply voltage, V 230/400 АС
Maximum load current, A 5 A / determined by a contactor
Types of protection Phase failure , Phase symmetry , Phase alternation , Phase sticking
Operating method Potentiometers (knobs)
Indication LED lights
Available delivery methods: Pickup from the store, Nova Poshta.
Payment methods: Bank transfer, Cash on delivery.

Detail product Description

Voltage, phase imbalance and sequence relay RNPP-313 is designed for:

  • Monitoring the allowable voltage level
  • Controlling correct phase sequence and absence of phase sticking
  • Monitoring phase continuity and network voltage symmetry (phase imbalance)
  • Disconnecting the load in case of poor network voltage quality
  • Monitoring network voltage quality after load disconnection and automatically reconnecting it after voltage parameters are restored
  • Indicating faults during emergency situations and showing the presence of voltage on each phase
  • Monitoring zero break

The device includes the ability to adjust the delay time for triggering the phase imbalance protection. After restoring network voltage parameters, the relay reconnects the load following the specified auto-restart delay (AR).

The device utilizes an impulse power supply, allowing RNPP-313 to operate in circuits with significant distortions in the supply voltage waveform.

Operating Modes:

  • Low Voltage Control
  • In this mode, the load is disconnected when the network voltage drops below 195 V
  • High Voltage Control
  • In this mode, the load is disconnected when the network voltage rises above 260 V
  • Phase Presence Monitoring
  • In this mode, the load is disconnected if one of the phases is interrupted
  • Incorrect Phase Sequence and Sticking Detection
  • In this mode, the load is disconnected in case of incorrect phase connection or phase sticking
  • Phase Imbalance Control
  • In this mode, the load is disconnected if the voltage difference between phases exceeds 40 V
  • Zero Break Monitoring
  • In the event of a zero break, the load is disconnected, and the LINE and OFF indicators are turned off

Phase presence monitoring is active in all operating modes. The relay triggers if a phase is interrupted or the voltage drops below 100 V on one or more phases within 0.25 seconds.

Advantages:

  • Easy connection via a magnetic contactor
  • Reliable changeover contact
  • Ultra-compact size
  • High interference immunity thanks to the impulse power supply
  • Simple configuration

Applications:

  • Monitoring phase and line voltages in three-phase networks
  • Protecting three-phase and, in some cases, single-phase equipment from
  • Voltage faults (undervoltage or overvoltage)
  • Incorrect phase sequence and phase sticking
  • Phase loss and imbalance
  • Zero break
  • Ideal for protecting refrigeration and ventilation systems
  • Suitable for compact control cabinets where space saving is essential

Key Features:

  • Monitoring the allowable effective voltage level
  • Checking correct phase sequence and absence of phase sticking
  • Ensuring phase continuity and voltage symmetry
  • Disconnecting the load by opening the power circuit of the magnetic contactor coil under fault conditions
  • Monitoring network voltage quality after load disconnection and automatically reconnecting it when voltage parameters are restored

Novatek electro

Development and development of security devices and automation. 5 years guarantee. Products are constantly available in stock or are released in the shortest possible time.