MPN

ABB Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 300 → 500V ac, DIN Rail

RS Stock No.:: 775-8034
Mfr. Part No.:: 1SVR740884R3300 CM-MPS.41P
Brand:: ABB

ABB Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 300 → 500V ac, DIN Rail

View all Monitoring Relays

Save 20% when you buy 50 units

Subtotal (1 unit)*

£213.66

(exc. VAT)

£256.39

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

2 unit(s) ready to ship
Plus 4 unit(s) shipping from 23 October 2025

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

Units	Per unit
1 - 4	£213.66
5 - 9	£202.98
10 - 24	£192.29
25 - 49	£181.60
50 +	£170.91

*price indicative

RS Stock No.:: 775-8034
Mfr. Part No.:: 1SVR740884R3300 CM-MPS.41P
Brand:: ABB

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Monitoring Application	Phase, Voltage
	Electrical Phase	3
	Voltage Sensing Range	300 → 500V ac
	Contact Configuration	DPDT
	Voltage Sensitivity	Overvoltage, Undervoltage
	Mounting Type	DIN Rail
	Phase Sensitivity	Phase Failure, Phase Imbalance, Phase Sequence
	Time Delay	0.1 → 30 s, 0s
	Frequency Sensing Range	45 → 65Hz
	Series	CM-MPS
	Minimum Operating Temperature	-25°C
	Dimensions	103.7 x 22.5 x 85.6mm
	Maximum Voltage Sensed	500V ac
	Operating Temperature Range	+60°C
	Height	85.6mm
	Length	103.7mm
	Minimum Voltage Sensed	300V ac
	Terminal Type	Push In
	Width	22.5mm
	Maximum Operating Temperature	+60°C

	Select all
	Brand ABB
	Monitoring Application Phase, Voltage
	Electrical Phase 3
	Voltage Sensing Range 300 → 500V ac
	Contact Configuration DPDT
	Voltage Sensitivity Overvoltage, Undervoltage
	Mounting Type DIN Rail
	Phase Sensitivity Phase Failure, Phase Imbalance, Phase Sequence
	Time Delay 0.1 → 30 s, 0s
	Frequency Sensing Range 45 → 65Hz
	Series CM-MPS
	Minimum Operating Temperature -25°C
	Dimensions 103.7 x 22.5 x 85.6mm
	Maximum Voltage Sensed 500V ac
	Operating Temperature Range +60°C
	Height 85.6mm
	Length 103.7mm
	Minimum Voltage Sensed 300V ac
	Terminal Type Push In
	Width 22.5mm
	Maximum Operating Temperature +60°C

ABB CM-MPS Series Monitoring Relay, 300 to 500V AC Voltage Sensing Range, 0.1 to 30 s Time Delay - 1SVR740884R3300 CM-MPS.41P

This monitoring relay is designed for phase and voltage applications, ideal for industrial settings. With compact dimensions of 103.7 x 22.5 x 85.6mm, it can be easily mounted on a DIN rail. This device ensures reliable monitoring of electrical phases, protecting equipment from potential damage due to voltage fluctuations.

Features & Benefits

• Monitors both overvoltage and undervoltage situations
• Sensitive to phase failure, imbalance, and sequence
• Adjustable time delay from 0.1 to 30 seconds
• Supports a voltage sensing range between 300 to 500V AC
• Compatible with 50 to 60Hz frequency sensing
• Robust operating temperature range from -20 to +60°C

Applications

• Used for phase monitoring in industrial machinery
• Applied in voltage fluctuation detection for electrical systems
• Utilised in data centres for equipment protection
• Ideal for automation systems requiring reliable voltage regulation

How does this device improve safety in electrical systems?

It actively monitors voltage levels and phase characteristics, providing critical protection against potential damage caused by electrical anomalies.

What are the advantages of using a DPDT relay in monitoring applications?

The DPDT relay allows for multiple circuit control, enhancing flexibility in managing various electrical outputs while providing reliable monitoring capabilities.

What range of operating temperatures can it withstand, and why is that important?

The relay operates effectively within -20 to +60°C, ensuring reliability in diverse environmental conditions, which is crucial for maintaining system integrity in industrial setups.

Can this relay detect phase sequence issues, and why is that beneficial?

Yes, it is configured to identify phase sequence errors, preventing incorrect motor rotation direction which could lead to equipment failure or operational inefficiencies.

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.