RS PRO Phase, Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail

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£102.68

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£123.22

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RS Stock No.:
225-7387
Brand:
RS PRO
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Brand

RS PRO

Monitoring Application

Phase, Voltage

Electrical Phase

3

Contact Configuration

DPDT

Voltage Sensitivity

Overvoltage, Undervoltage

Mounting Type

DIN Rail

Phase Sensitivity

Phase Failure, Phase Sequence

Width

17.5mm

Terminal Type

Screw

COO (Country of Origin):
GB

RS PRO 3-Phase Under/Overvoltage Relay with Phase Sequence


The RS PRO 3-Phase monitoring relay is used for connecting to a 3-wire or 4-wire supply. The relay is designed to monitor its own supply and in conjunction with an external contactor, disconnect the supply to the load/equipment in the event of a fault occurring.

How does it work?


For the output relay to energise, all phases (and neutral – if applicable) must be present, phase sequence correct, and measured phase asymmetry/unbalance within the set limits. If any of these conditions are not met, the relay (+ contactor) will de-energise, disconnect the supply, and thus protect the equipment.

Features and Benefits


  • Monitoring relay

  • Compact 17.5mm DIN rail housing

  • Microprocessor based

  • True R.M.S. monitoring measuring phase to phase (3-wire) or phase to neutral (4-wire) voltages

  • Selectable nominal voltages to suit most popular 3-wire or 4-wire supply voltages

  • Monitors own supply and detects if one or more phases exceed the set Under or Over voltage trip levels

  • Detects incorrect phase sequence, phase loss and neutral loss1

  • Adjustments for Under and Over voltage trip levels and Time delay

  • DPDT relay output 5A

  • Green LED indication for supply status and Red LED for relay status

Electrical Specification


  • Input: L1, L2, L3, N

  • Supply/monitoring voltage Un: There are 6 nominal voltages to choose from on this product

  • 3-wire monitoring: 380, 400, 415V AC

  • 4-wire monitoring: 220, 230, 240V AC

  • Frequency range: 48 – 63Hz

  • Supply variation: 243- 540V AC (L>L)

  • Overvoltage category: III (IEC 60664)

  • Rated impulse withstand voltage: 4kV (1.2/50 μS)

  • Power consumption (max.): 2.5VA

  • Output: 15, 16, 18 / 25, 26, 28

  • Relay configuration: DPDT Output rating: AC1 – 250V 5A, AC15 – 250V 2A, DC1 – 25V 5A

  • Electrical life: ≥ 150,000 ops at rated load

  • Dielectric voltage: 2kV AC (rms) IEC 60947-1

  • Rated impulse withstand voltage: 4kV (1.2/50μS) IEC 60664

Dimensions


  • Width:17.5 mm x Height: 89 mm x Depth: 66.5 mm

Note


Full specification and setup details can be found on the RS PRO datasheet.

Approvals

  • Declarations: CE, RoHS, and C-tick compliant

  • Standards Met EMC: Immunity EN 61000-6-2, Emissions: EN 61000-6-4

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