ABB CM Voltage Monitoring Relays

ABB CM Voltage Monitoring Relays Supplier and Exporter in India

ABB Voltage Monitoring Relays for Overvoltage, Undervoltage & Phase Monitoring

ABB CM voltage monitoring relays are used to check the incoming voltage supply and give an output when the voltage moves outside the required operating range. They are commonly fitted in control panels, MCCs, machines, pumps, compressors and industrial equipment where unstable voltage, phase loss or incorrect phase conditions can cause unwanted shutdowns or damage to equipment.

ABB offers CM relays for both single-phase AC/DC voltage monitoring and three-phase mains monitoring. Depending on the model, they can monitor overvoltage, undervoltage, voltage window, phase failure, phase sequence and phase unbalance.

For an ABB voltage monitoring relay supplier in India, CM-ESS undervoltage relay, CM-EFS voltage window relay or ABB three-phase voltage monitoring relay, buyers can send the required voltage, monitoring function, model number and quantity for quotation.

ABB CM Voltage Monitoring Relay Models

ABB CM-ESS Single-Phase Voltage Monitoring Relays

The CM-ESS series is used for monitoring AC or DC voltage in single-phase circuits.

Main versions include:

• CM-ESS.1S / CM-ESS.1P
• CM-ESS.2S / CM-ESS.2P
• CM-ESS.MS / CM-ESS.MP

Depending on the version, these relays can be used for overvoltage or undervoltage monitoring with adjustable voltage thresholds and operating delays.

CM-ESS models cover measuring ranges from 3 V up to 600 V AC/DC, depending on the selected relay.

The S suffix identifies screw-terminal versions, while P identifies push-in terminal versions.

ABB CM-EFS Voltage Window Monitoring Relays

The CM-EFS.2S and CM-EFS.2P are voltage window monitoring relays.

Instead of checking only one voltage limit, these models monitor both an upper and lower threshold. The relay operates when the voltage moves outside the selected window.

This is useful where equipment must operate only within a defined voltage range.

ABB CM-PVS Three-Phase Voltage Monitoring Relays

ABB CM-PVS relays are designed for three-phase mains monitoring.

Models include:

• CM-PVS.31
• CM-PVS.41
• CM-PVS.81

Depending on the model, these relays monitor voltage conditions along with phase sequence and phase failure.

They are commonly considered for motors, pumps, compressors, HVAC equipment and industrial machinery supplied from a three-phase network.

ABB CM-MPS Multifunctional Three-Phase Monitoring Relays

CM-MPS is ABB’s multifunctional three-phase monitoring range.

Models include:

• CM-MPS.11
• CM-MPS.21
• CM-MPS.31
• CM-MPS.41
• CM-MPS.23
• CM-MPS.43

These models combine several mains-monitoring functions in one relay, including:

• Overvoltage
• Undervoltage
• Phase failure
• Phase sequence
• Phase unbalance

Selected versions also provide neutral conductor monitoring.

CM-MPS relays are useful where a single device is required to monitor several possible faults in a three-phase supply.

Other ABB CM Three-Phase Monitoring Relays

The wider ABB CM range also includes models such as:

• CM-PBE
• CM-PVE
• CM-PFE
• CM-PFS
• CM-PSS.31 / CM-PSS.41
• CM-PAS.31 / CM-PAS.41
• CM-MPN.52 / CM-MPN.62 / CM-MPN.72

These models cover different combinations of phase failure, phase sequence, voltage, phase unbalance and mains-monitoring functions.

For replacement requirements, it is always better to match the complete ABB model number rather than selecting a relay only by the system voltage.

Technical Specifications

• Product family: ABB CM
• Product type: Voltage and mains monitoring relay
• Single-phase range: CM-ESS and CM-EFS
• Three-phase ranges: CM-Pxx, CM-MPS and CM-MPN
• Single-phase measurement: AC and DC
• Measuring principle: True RMS on applicable CM models
• Single-phase measuring range: Approximately 3 V to 600 V depending on model
• Three-phase mains monitoring: Available
• Overvoltage monitoring: Available
• Undervoltage monitoring: Available
• Voltage window monitoring: Available
• Phase failure detection: Available on three-phase models
• Phase sequence monitoring: Available on applicable models
• Phase unbalance monitoring: Available on multifunction models
• Adjustable voltage thresholds: Available depending on model
• Adjustable trip delay: Available depending on version
• Output contacts: Relay outputs, model dependent
• Screw terminal versions: Available
• Push-in terminal versions: Available
• Housing width: 22.5 mm on main CM monitoring ranges
• DIN rail mounting
• LED operating and fault indication

Features

• Overvoltage and undervoltage monitoring
• Single-phase and three-phase models available
• AC/DC voltage monitoring on CM-ESS and CM-EFS ranges
• Voltage window monitoring for upper and lower limits
• Phase loss detection on three-phase networks
• Phase sequence monitoring
• Phase unbalance monitoring on selected models
• Adjustable operating thresholds
• Adjustable trip delay on applicable models
• LED indication for relay and fault status
• Screw and push-in terminal options
• Compact DIN rail construction
• Suitable for new panels and replacement requirements

ABB CM Relays for Overvoltage & Undervoltage Monitoring

Voltage that is too high or too low can create problems for motors, control equipment and other electrical loads.

An ABB CM voltage monitoring relay can supervise the supply continuously and change its output contact when the voltage crosses the selected limit. The output can then be used to operate an alarm, disconnect a contactor or send a signal to a PLC.

Typical uses include:

• Motor supply supervision
• Machine voltage protection
• Control supply monitoring
• Pump panels
• Compressor panels
• Generator auxiliary systems
• Industrial equipment protection

ABB CM-EFS Voltage Window Monitoring

Some applications need both the minimum and maximum voltage to be supervised.

The ABB CM-EFS range monitors a voltage window. If the measured voltage rises above the upper limit or falls below the lower limit, the relay changes state.

This is useful for machines and control circuits that should only operate when the supply voltage remains within an acceptable range.

ABB Three-Phase Voltage Monitoring Relays

For three-phase systems, voltage monitoring involves more than checking whether voltage is present.

Depending on the selected ABB CM model, the relay can detect:

• Missing phase
• Incorrect phase sequence
• Low voltage
• High voltage
• Excessive phase unbalance
• Neutral interruption on selected models

This makes ABB CM three-phase monitoring relays useful for motors and rotating equipment where the condition of all three supply phases is important.

Applications

ABB CM voltage monitoring relays are used in:

• Motor control panels
• MCC panels
• Pump control panels
• Compressor panels
• HVAC systems
• Chillers
• Conveyor systems
• Industrial machinery
• Packaging machines
• Process plants
• Water and wastewater plants
• Material handling systems
• Hoists and cranes
• Generator auxiliary panels
• Automatic control panels
• PLC panels
• OEM machinery
• Building automation
• Electrical distribution panels
• Three-phase motor protection circuits
• Control voltage supervision
• Phase failure monitoring
• Phase sequence monitoring
• Overvoltage and undervoltage protection

Choosing the Correct ABB CM Voltage Monitoring Relay

For an ABB CM voltage relay enquiry, buyers should provide:

• Single-phase or three-phase supply
• AC or DC voltage
• System voltage
• Overvoltage, undervoltage or window monitoring requirement
• Phase failure/phase sequence requirement
• Existing ABB model number, if replacing a relay
• Screw or push-in terminal preference
• Quantity
• Destination country

For an existing installation, the complete ABB model or a clear photograph of the relay nameplate can help identify the correct replacement.

Looking for ABB CM Voltage Monitoring Relays?

We supply ABB CM voltage monitoring relays for industrial automation, motor control, machine protection, panel building, OEM requirements and export projects.

Enquiries are welcome for ABB CM-ESS.1, CM-ESS.2, CM-ESS.M, CM-EFS.2, CM-PVS, CM-MPS and other ABB three-phase monitoring relays.

For an ABB voltage monitoring relay supplier and exporter from India, ABB overvoltage relay, ABB undervoltage relay, CM-ESS relay, CM-EFS voltage window relay or ABB three-phase voltage monitoring relay, send the complete model, system voltage, monitoring requirement, quantity and destination country for quotation.