Monitoring Relays

 

Monitoring Relays for Industrial Panels & Machinery

Monitoring relays are used in electrical panels and machinery to keep watch on important operating conditions such as voltage, phase sequence, phase failure, current, frequency, temperature and liquid level.

They are commonly required in pump panels, compressors, conveyors, HVAC systems, motor-control panels and industrial automation equipment where an abnormal condition needs to be detected before it causes a shutdown or equipment problem.

ARP IMPEX supplies monitoring relays for new panels, OEM machinery, plant maintenance and replacement requirements. If you already have a part number, send us the brand, complete model or ordering code, quantity and delivery country for quotation.

We also support buyers looking for an industrial monitoring relay supplier in India, phase monitoring relay exporter, voltage monitoring relay supplier, current monitoring relay, or a replacement for an existing ABB, Siemens or Schneider Electric monitoring relay.

Common Monitoring Relay Requirements

Not every monitoring relay is used for the same purpose. In many cases, the easiest way to identify the right relay is simply to tell us what needs to be monitored.

Typical enquiries include:

• Phase failure and phase sequence monitoring
• Overvoltage and undervoltage monitoring
• Current monitoring
• Frequency monitoring
• Motor thermistor and temperature monitoring
• Liquid-level and pump monitoring
• Phase imbalance monitoring
• Supply supervision for motors and machinery

A three-phase monitoring relay may be required to protect a pump or compressor from phase failure, while another buyer may need an undervoltage monitoring relay for a control panel or a liquid-level relay for pump dry-run protection.

If the relay is for an existing machine, the old model number is usually the best starting point.

ABB Monitoring Relays

ABB offers a wide range of monitoring relays under its CM series for industrial control and panel applications.

Depending on the model, ABB CM relays are used for phase, voltage, current, frequency, temperature, insulation and liquid-level monitoring. These products are commonly found in machinery, pump panels, motor-control systems and automation panels.

Popular requirements may include ABB phase monitoring relays, current and voltage monitoring relays, temperature monitoring devices and liquid-level relays.

ARP IMPEX supplies ABB CM monitoring relays for new projects, maintenance and replacement jobs. Buyers looking for an ABB monitoring relay supplier in India can send the complete ABB ordering code, quantity and destination for quotation.

Siemens Monitoring Relays

Siemens supplies industrial monitoring relays under the SIRIUS 3UG5 range.

These relays are used for monitoring conditions such as phase, voltage, current, frequency and other operating parameters in machinery and control panels. Siemens 3UG5 products are commonly specified in applications involving motors, pumps, compressors, conveyors and industrial automation.

For temperature-based motor monitoring, Siemens also offers the 3RN2 thermistor protection relay range.

If you are looking for a Siemens 3UG5 monitoring relay, Siemens phase monitoring relay, 3RN2 thermistor relay, or a replacement model already installed in a panel, send us the complete Siemens article number wherever possible.

Schneider Electric Monitoring Relays

Schneider Electric offers monitoring and control relays under its Harmony range.

Common families include RM17, RM22 and RM35, covering applications such as phase, voltage, current, frequency and other monitoring functions.

These relays are widely used in electrical panels, machinery, pumps and automation systems where supply conditions or equipment status need to be checked continuously.

ARP IMPEX supplies Schneider Electric Harmony monitoring relays for new installations and replacement requirements. For an exact quotation, send the complete Schneider Electric reference number along with the quantity and delivery country.

Monitoring Relays for Pumps, Motors & Control Panels

A large number of monitoring relay enquiries come from everyday industrial applications rather than large power projects.

For example, a pump panel may need phase-loss or dry-run monitoring. A compressor panel may need voltage supervision. A motor may use a thermistor relay to monitor winding temperature. A conveyor system may need current monitoring to detect an unusual load condition.

This is why monitoring relays are commonly searched for as:

• phase monitoring relay for motor,
• voltage monitoring relay for control panel,
• pump dry-run monitoring relay,
• current monitoring relay for machinery,
• thermistor relay for motor protection, or
• three-phase monitoring relay supplier.

If you are not sure about the exact relay model, send us the application and available electrical details. We can check the requirement from there.

Replacing an Existing Monitoring Relay?

For replacement work, the complete manufacturer part number is the quickest way to identify the correct product.

If the number is not clearly visible, send us a photograph of the existing relay and let us know:

what the relay is monitoring + supply voltage + quantity + destination country

If you know the current settings or connected sensor details, include those as well.

This is especially useful for older ABB, Siemens and Schneider Electric monitoring relays installed in machinery or control panels for many years.

Monitoring Relay Supplier & Exporter from India

ARP IMPEX supplies monitoring relays from India for panel builders, machinery manufacturers, electrical traders, industrial plants and maintenance companies.

Export enquiries include requirements from the United Arab Emirates, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Egypt, Israel, Jordan and Lebanon, particularly for automation panels, motor-control equipment, pumps and machinery.

We also quote monitoring relay requirements for Kenya, Nigeria, Ghana, Tanzania, Senegal, Uganda, Zambia, South Africa, Morocco, Tunisia, Mauritius, Rwanda, Botswana, Namibia, Eswatini and Lesotho.

For buyers in Europe, model-specific quotations can be prepared for Germany, the United Kingdom, France, Italy, the Netherlands, Spain, Belgium, Poland, the Czech Republic, Sweden, Denmark, Finland, Portugal, Hungary, Slovakia, Slovenia, Romania and Austria.

Asian requirements can be handled for Singapore, Malaysia, Vietnam, Indonesia, Thailand, the Philippines, Bangladesh, Sri Lanka, Nepal, Japan and South Korea.

We also support enquiries from the United States, Canada, Mexico, Brazil, Chile, Colombia, Peru, Panama, Australia and New Zealand.

For export quotations, send the brand, complete model, quantity and destination country.

Need a Monitoring Relay Quote?

Already have the relay part number?

Send us: Brand + Complete Model / Ordering Code + Quantity + Destination Country

If you do not know the model, tell us whether you need to monitor phase, voltage, current, frequency, temperature, thermistor condition or liquid level, and share the operating voltage and application.

REQUEST A MONITORING RELAY QUOTE

 

Monitoring Relay FAQs

Which monitoring relay brands do you supply?

We supply model-specific monitoring relay requirements from ABB, Siemens, Schneider Electric and other industrial electrical manufacturers, depending on the exact product and availability.

Can you supply ABB CM monitoring relays?

Yes. ABB CM-series monitoring relays are available for several applications including phase, current, voltage, temperature and liquid-level monitoring. Send the complete ABB ordering code for quotation.

Can you supply Siemens 3UG5 monitoring relays?

Yes. We handle requirements for Siemens SIRIUS 3UG5 monitoring relays used in machinery, motor panels and industrial automation applications.

Do you supply Siemens 3RN2 thermistor relays?

Yes. Siemens 3RN2 relays are used for motor temperature monitoring with suitable thermistor sensors. Send the complete model number for an exact quotation.

Can you supply Schneider Electric RM17, RM22 or RM35 monitoring relays?

Yes. We handle Schneider Electric Harmony monitoring relay requirements including RM17, RM22, RM35 and related ranges.

Can you help replace an old monitoring relay?

Yes. Send the existing model number and a clear photograph. If the reference is unclear, also tell us what the relay is monitoring and the operating voltage.