THREE PHASE VOLTAGE MONITORING RELAY RNPP-301

Product Details:

Voltage TypeAC
Voltage (V)240/415
Number of Poles3 Pole & 4 Pole
ApplicationThree Phase Voltage & Contactor Output Monitoring
Current (Amps)5A @ 250V AC
BrandNOVATEK ELECTRO
Contact FormSPDT (1NO + 1NC)
TypeUndervoltage, Overvoltage, Phase loss, Phase imbalance, Reverse phase sequence protection
Technical Datasheet
RNPP-301
RNPP-301
1548237017RNPP-301 dim
RNPP-301 con
RNPP-301 connection

RNPP-301 voltage monitoring relay is designed for protection of three-phase loads against major type of mains faults, as:

  • RMS voltage reaching beyond admissible thresholds
  • Phase sequence order violation and phase coincidence
  • Violation of the mains voltage phase completeness and symmetry

The device performs monitoring the main circuit parameters and de-energizes load when the parameters fall beyond specified boundaries. The relay also tracks the status of magnetic starter power contacts at no-load and under load while monitoring their operability (burning or sticking).

The front panel LEDs display the following:

  • Presence of voltage in the mains
  • Load status (ON/OFF)
  • Type of fault

Six variable pot knobs on the front panel allow for setting:

  • The maximum allowable voltage tripping threshold
  • The minimum allowable voltage tripping threshold
  • Allowable phase imbalance threshold
  • Tripping time delay for load de-energizing in case of emergency voltage reduction
  • Tripping time delay for load de-energizing in case of other circuit faults
  • Time delay for load re-energizing after the circuit parameters recovery

The device can function a phase- or line- voltage monitor (user-selected). Three modifications of this device are currently produced.

Additional Information:

  • Item Code: RNPP-301
  • Port of Dispatch: New Delhi, India

Technical brief:

Rated phase/line voltage, V

240/415

Mains frequency, Hz

45-55

Harmonical configuration (nonsinusoidality) of power supply voltage

EN 61000-3-2 (IEC 1000-3-2)

Adjustable range for Umin, % of nominal value

5-25

Adjustable range for Umax, % of nominal value

5-25

Adjustable range for phase imbalance/asymmetry, %

5-20

Adjustable range for Tmin, sec

0-20

Adjustable range for Toff, sec

0-10

Adjustable range for Ton, sec

0-600

Minimum trip delay when threshold settings are reached, sec

0.1

Reset/energization delay when the relay energizes, sec, not more than

0.2

Voltage hysteresis, V

5-6

Accuracy of trip threshold for voltage, V, not more than

3

Phase imbalance accuracy, %, not more than

1.5

Safe operating voltage, % of rated value

30-110

Power required (under load), VA, not more than

3.0

Maximum switched current of output contacts, A

5

Output contacts life:

  • under load 5A, no less than, operations
  • under load 1A, no less than, operations

100000
1 mln.

Protection degree of:

  • apparatus
  • terminal block


IP40
IP20

Permissible contamination level

II

Overvoltage category

III

Nominal voltage of isolation, V

450

Rated impulse withstand voltage, kV

4

Cross-section area of connection terminals, mm²

0.5-2

Maximum torque of terminal fixing, N*m

0.4

Operating temperature range, °C

from -35 to +55

Weight, no more than, kg

0.200

Case dimensions 4 modules of S-type

Mounting 35 mm DIN-rail

Mounting position as desired

RNPP-301 complies with requirements:

IEC 60947-1:2004, ІDТ; ІEC 60947-6-2:1992, ІDT; CISPR 11:2004, IDT; IEC 61000-4-2:2001, IDT