1SVR750740R0120 ABB CM-TCN.012S Temperature Monitoring Relay with Modbus RTU

1SVR750740R0120 ABB CM-TCN.012S Temperature Monitoring Relay with Modbus RTU

ABB CM-TCN.012S temperature monitoring relay with three sensor circuits, -200 to +850 °C measurement range, 24–240 V AC/DC supply and integrated Modbus RTU communication.

SKU: 1SVR750740R0120Alt SKU: CM-TCN.012SMPN: 1SVR750740R0120
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Manufacturer Lead Time

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Why Choose the ABB CM-TCN.012S Temperature Monitoring Relay?

The ABB CM-TCN.012S is an advanced temperature monitoring relay designed for continuous monitoring and control of temperature in industrial equipment, machinery and automation systems. As part of the ABB CM-TCN temperature monitoring relay series, it provides flexible temperature measurement, configurable monitoring functions and integrated Modbus RTU communication for modern industrial control applications.

This monitoring relay supports up to three independent temperature sensor circuits and can be used with PT100, PT1000, PTC and NTC sensors. An integrated LCD provides local access to measured values and maintenance information, while NFC connectivity allows convenient configuration using a compatible smartphone and ABB EPiC app.

With a 24–240 V AC/DC control supply, a temperature measurement range of -200 to +850 °C and three changeover relay outputs, the CM-TCN.012S provides comprehensive temperature monitoring for industrial installations. Its embedded Modbus RTU communication interface enables remote monitoring and configuration through an RS-485 network.

Key Advantages

  • Advanced temperature monitoring relay for industrial applications.
  • -200 to +850 °C measurement range for a wide variety of temperature monitoring requirements.
  • Supports up to three independent temperature sensor circuits.
  • Compatible with PT100, PT1000, PTC and NTC sensors.
  • Integrated Modbus RTU communication over an RS-485 interface.
  • Built-in LCD display and NFC connectivity for convenient setup and monitoring.
  • Three changeover relay outputs provide flexible temperature alarm and control functions.

Key Features

  • ABB CM-TCN temperature monitoring relay series.
  • 24–240 V AC/DC rated control supply voltage.
  • -200 to +850 °C temperature measurement range.
  • Up to three temperature sensor circuits.
  • Supports PT100, PT1000, PTC and NTC sensors.
  • Integrated Modbus RTU communication interface.
  • Built-in LCD display and NFC interface.
  • 3 c/o (SPDT) output contacts.
  • Screw connection terminals.
  • DIN rail mounting for electrical control panels.

Advanced Temperature Monitoring for Industrial Automation

Temperature monitoring relays such as the ABB CM-TCN.012S continuously evaluate temperature sensor signals and can activate relay outputs when configured temperature thresholds or operating conditions are reached. This allows equipment operators and automation systems to respond to overtemperature, undertemperature and temperature range conditions.

The CM-TCN.012S combines local monitoring with digital connectivity. Its integrated Modbus RTU interface allows temperature measurements, relay status and monitoring information to be accessed remotely through an RS-485 network. The LCD and NFC interface also provide convenient local configuration and access to operating information, helping simplify commissioning and maintenance.

Typical Applications

  • Industrial machinery and production equipment.
  • Motor and electrical equipment temperature monitoring.
  • Control panels and automation systems.
  • Heating, ventilation and process equipment.
  • Temperature monitoring of solids, liquids and gaseous media.
  • Industrial condition monitoring and asset protection systems.
  • PLC and Modbus RTU based automation installations.

Technical Specifications

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Monitoring Function Temperature / thermistor
Series CM-TCN Temperature Monitoring Relays
ABB order code 1SVR750740R0120
Product type Temperature monitoring relay
Rated control supply voltage 24–240 V AC/DC
Rated frequency 50 / 60 Hz
Temperature measurement range -200 to +850 °C
Number of measuring circuits 3
Supported temperature sensors PT100, PT1000, PTC and NTC
Output contacts 3 c/o (SPDT)
Output contact rating 250 V AC / 4 A
Communication interface Modbus RTU / RS-485
Display LCD
Configuration interface NFC
Terminal type Screw terminals
Mounting type DIN rail mounting
Protection rating IP20
Operating temperature -25 to +60 °C
Dimensions (H × W × D) approx. 85.6 × 45 × 103.7 mm
Weight approx. 0.299 kg

Frequently Asked Questions

What is the ABB CM-TCN.012S used for?

The ABB CM-TCN.012S is a temperature monitoring relay used to measure and monitor temperature in industrial equipment, machinery and automation systems.

What temperature range can the CM-TCN.012S monitor?

The CM-TCN.012S supports a wide temperature measurement range from -200 to +850 °C.

Which temperature sensors are compatible with this relay?

The relay supports PT100, PT1000, PTC and NTC temperature sensors and can monitor up to three sensor circuits.

Does the CM-TCN.012S support Modbus RTU?

Yes. The CM-TCN.012S has an integrated Modbus RTU communication interface over RS-485 for remote monitoring, configuration and control.

What supply voltage does the CM-TCN.012S require?

The CM-TCN.012S operates from a 24–240 V AC/DC control supply and has three changeover relay outputs rated at up to 250 V AC / 4 A.

Trusted by Industrial Automation Engineers Worldwide

ABB CM-TCN temperature monitoring relays provide flexible temperature measurement, configurable monitoring and integrated communication for reliable industrial automation and asset monitoring applications.