RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
- RS Stock No.:
- 223-7788
- Brand:
- RS PRO
Subtotal (1 unit)*
£104.81
(exc. VAT)
£125.77
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- Plus 53 unit(s) shipping from 06 October 2025
- Plus 10 unit(s) shipping from 06 October 2025
- Plus 50 unit(s) shipping from 26 November 2025
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
Specifications
Technical Reference
Legislation and Compliance
Product Details
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 | |
| Terminal Type | Screw | |
| Operating Temperature Range | -10 → +60°C | |
| Maximum Frequency Sensed | 45Hz | |
| Dimensions | 36 x 90 x 67mm | |
| Length | 66.21mm | |
| Maximum Operating Temperature | +60°C | |
| Width | 36mm | |
| Minimum Frequency Sensed | 65Hz | |
| 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 | ||
Terminal Type Screw | ||
Operating Temperature Range -10 → +60°C | ||
Maximum Frequency Sensed 45Hz | ||
Dimensions 36 x 90 x 67mm | ||
Length 66.21mm | ||
Maximum Operating Temperature +60°C | ||
Width 36mm | ||
Minimum Frequency Sensed 65Hz | ||
Minimum Operating Temperature -10°C | ||
- COO (Country of Origin):
- IN
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
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.