MPN

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

RS Stock No.:: 223-7788
Brand:: RS PRO

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

Subtotal (1 unit)*

£104.81

(exc. VAT)

£125.77

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

29 unit(s) ready to ship
Plus 24 unit(s) ready to ship from another location
Plus 11 unit(s) ready to ship from another location

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	£104.81

*price indicative

RS Stock No.:: 223-7788
Brand:: RS PRO

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Monitoring Application	Phase, Voltage
	Electrical Phase	3
	Contact Configuration	SPDT
	Voltage Sensitivity	Overvoltage Protection, Undervoltage Protection
	Mounting Type	DIN Rail
	Phase Sensitivity	Phase Loss, Phase Sequence, Phase Asymmetry
	Time Delay	2 → 999s
	Frequency Sensitivity	Overfrequency, Underfrequency
	Operating Temperature Range	-10 → +60°C
	Minimum Frequency Sensed	65Hz
	Terminal Type	Screw
	Dimensions	36 x 90 x 67mm
	Length	66.21mm
	Maximum Frequency Sensed	45Hz
	Maximum Operating Temperature	+60°C
	Width	36mm
	Minimum Operating Temperature	-10°C

	Select all
	Brand RS PRO
	Monitoring Application Phase, Voltage
	Electrical Phase 3
	Contact Configuration SPDT
	Voltage Sensitivity Overvoltage Protection, Undervoltage Protection
	Mounting Type DIN Rail
	Phase Sensitivity Phase Loss, Phase Sequence, Phase Asymmetry
	Time Delay 2 → 999s
	Frequency Sensitivity Overfrequency, Underfrequency
	Operating Temperature Range -10 → +60°C
	Minimum Frequency Sensed 65Hz
	Terminal Type Screw
	Dimensions 36 x 90 x 67mm
	Length 66.21mm
	Maximum Frequency Sensed 45Hz
	Maximum Operating Temperature +60°C
	Width 36mm
	Minimum Operating Temperature -10°C

RS PRO Digital Voltage Monitoring Relays

RS PRO is proud to present a complete range of control monitoring relays designed for single-phase or 3 phase systems. Each relay is packed with excellent features to ensure effective protection against all types of low voltage faults. These high-quality monitoring devices offer over-voltage and under-voltage protection, protect against voltage phase sequence, phase loss, and phase asymmetry, over & under frequency, and neutral open.

Display Screen

The front panel details on the display screen include fault window and menu feature parameter, line or phase voltage, delay timer status, time in seconds, percentage asymmetry, frequency in Hz, voltage, Instantaneous voltage, or other settable parameters and relay status.

Four key programming

Escape, scroll up, scroll down and enter

Connection

Connection for supply voltage and relay is illustrated on the side of the device.

Features and Benefits

LCD Display with Green Backlight

DIN Rail mounting

True RMS Measurement @ 2kHz sampling rate

Protection against Phase loss, Phase Sequence, Phase Asymmetry, Under Voltage, Over Voltage, Neutral fault, Over Frequency & Under Frequency

Can be configured for 3-Phase 3-Wire or 3-Phase 4-Wire supplies,145-500VAC (DMA220 50-500VAC)

Selectable overvoltage/ undervoltage, Asymmetry, Phase Loss, Phase Sequence, Over Frequency Under Frequency & Neutral Fault monitoring

Prominent Features

Adjustable ON-OFF time delay

Time Delay in seconds/minutes

5A Single and Dual relay outputs

Two Separate Relay outputs with independent Programming

Password protection

Log of 5 previous faults for better monitoring

Fail-safe/Non-Fail-safe relay configuration

Latch (Manual-reset) and Non-Latch (Auto-reset) alarm modes

RS PRO Digital Voltage Monitoring Relay Variants

145-500 VAC, Digital Voltage Monitoring Relay, 1C/O = RS stock no: 223-7788

145-500 VAC, Digital Voltage Monitoring Relay, 1C/O + 1C/O = RS stock no: 223-7789

50-500 VAC, Digital Voltage Monitoring Relay with 85-300Vac/dc Auxiliary supply, 1C/O + 1C/O = RS stock no: 223-7790

Applications

Switchgear

Control Gear

Machine Control

Mains Distribution Systems

Why RS PRO?

RS PRO is the own brand of RS. The RS PRO Seal of Approval is your assurance of professional quality, a guarantee that every part is rigorously tested, inspected, and audited against demanding standards. Making RS PRO the Smart Choice for our customers.

Be the first to know about our latest products and services

Join our mailing list today:

The personal information you provide to us when signing up to the mailing list will be processed in line with our privacy policy.