RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, Maximum of 280 V, DIN Rail

View all Monitoring Relays
Bulk discount available

Subtotal (1 unit)*

£56.92

(exc. VAT)

£68.30

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 22 unit(s) ready to ship
  • Plus 7 unit(s) ready to ship from another location
  • Plus 15 unit(s) shipping from 28 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 4£56.92
5 - 9£54.64
10 - 24£54.07
25 +£51.23

*price indicative

RS Stock No.:
102-6135
Brand:
RS PRO
Find similar products by selecting one or more attributes.
Select all

Brand

RS PRO

Monitoring Application

Phase, Voltage

Electrical Phase

3

Voltage Sensing Range

Maximum of 280 V

Contact Configuration

SPDT

Voltage Sensitivity

Undervoltage

Mounting Type

DIN Rail

Phase Sensitivity

Phase Failure, Phase Sequence

Time Delay

100ms

Frequency Sensing Range

48 → 63Hz

Series

L

Width

17.5mm

Maximum Operating Temperature

+60°C

Minimum Operating Temperature

-20°C

Special Features

2 LEDs for the Indication of Operational States, Detects Incorrect Phase Sequence & Phase Loss, Fixed Time Delay, Fixed Undervoltage Trip Level, Measures Phase to Phase Voltages, Microprocessor Based Relay, Monitors Own Supply & Detects an Undervoltage Condition on One or more Phases, True RMS Monitoring

Maximum Voltage Sensed

280V

Terminal Type

Screw

Dimensions

17.5 x 66.5 x 89mm

Number of Poles

1

Length

66.5mm

Height

89mm

Operating Temperature Range

+60°C

COO (Country of Origin):
GB

RS PRO Phase, Voltage Monitoring Relay With SPDT Contacts, 3 Phase, Undervoltage


RS PRO's three-phase monitoring relay helps protect your equipment from failure due to undervoltage. The relay uses microprocessor technology to measure phase-to-phase voltages, breaking the circuit connection when the voltage drops too low.
The relay is easily adjustable according to your specifications. You can adjust the minimum voltage requirement up to 280 V and add a time delay to prevent tripping due to momentary dips in voltage.

Features and Benefits


• SPDT (Single Pole Double Throw) contact configuration
• Dimensions of 66.5 (length) x 17.5 (width) x 89 mm (height)
• Three phases
• Frequency sensing range of 48 to 63 Hz
• Operating temperature range of -20°C to +60°C
• Maximum voltage sensed of 280 V
• Phase and voltage monitoring application
• DIN rail mounting type
• One pole
• Special features include two LEDs for the indication of operational states, detection of incorrect phase sequence and phase loss, fixed time delay, fixed undervoltage trip level, measurement of phase-to-phase voltages, microprocessor-based relay, monitoring of own supply to detect an undervoltage condition on one or more phases, true RMS (Rotronic Monitoring System) monitoring
• Meets CE, EMC (electromagnetic compatibility), EN 61000-6, IEC standards
• Supply voltage of 280 to 520 V AC
• Screw terminal type
• Time delay of 100 ms

Related links