RS PRO Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 243 → 540 V, DIN Rail, Surface Mount

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£101.89

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£122.27

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RS Stock No.:
225-7388
Brand:
RS PRO
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Brand

RS PRO

Monitoring Application

Phase, Voltage

Electrical Phase

3

Voltage Sensing Range

243 → 540 V

Contact Configuration

DPDT

Voltage Sensitivity

Undervoltage

Mounting Type

DIN Rail, Surface Mount

Phase Sensitivity

Phase Failure, Phase Sequence

Time Delay

0.2 → 10s

Height

66.5mm

Width

17.5mm

Special Features

Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay

Terminal Type

Screw

Maximum Voltage Sensed

540V

Operating Temperature Range

-20 → +60°C

Dimensions

89 x 17.5 x 66.5mm

Minimum Voltage Sensed

243 V

Length

89mm

Maximum Operating Temperature

+60°C

Minimum Operating Temperature

-20°C

COO (Country of Origin):
GB

RS PRO 3-Phase Failure Sequence & Under-Voltage Relay


The RS PRO 3-Phase voltage 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 and measured phase voltages within the set trip levels. The product does not monitor phase rotation/sequence. 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


  • Compact 17.5mm DIN rail housing

  • Microprocessor based

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

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

  • Monitors own supply and detects an Under-voltage condition on one or more phases

  • Detects incorrect phase sequence, phase loss and neutral loss1

  • Adjustment for Under voltage trip level

  • Adjustment for Time delay

  • DPDT relay output 5A

  • Green LED indication for supply status

  • Red LED indication 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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