1SVR730740R0200 ABB CM-TCS.12S Temperature Monitoring Relay 0 to +100 °C 24-240 V AC/DC

Why Choose the ABB CM-TCS.12S Temperature Monitoring Relay?

The ABB CM-TCS.12S (1SVR730740R0200) is a versatile industrial temperature monitoring relay designed to measure and supervise temperatures from 0 to +100 °C. Part of ABB's CM-TCS temperature monitoring relay range, it uses a PT100 resistance temperature sensor to monitor temperature conditions in machinery, heating systems, process equipment and industrial automation installations.

The CM-TCS.12S supports overtemperature monitoring, undertemperature monitoring and combined overtemperature/undertemperature monitoring. Its two adjustable temperature thresholds enable users to establish suitable operating limits, while its configurable relay outputs provide switching signals for connected alarms, contactors, controllers and other industrial control equipment.

With a wide 24–240 V AC/DC rated control supply, two change-over relay contacts and compact 22.5 mm DIN rail-mounted construction, the ABB CM-TCS.12S offers flexible integration into industrial electrical panels. Its screw-terminal connections, front-mounted controls and LED status indicators support straightforward installation, commissioning and maintenance.

Key Advantages

• Reliable temperature monitoring from 0 to +100 °C for industrial applications.
• Compatible with PT100 resistance temperature sensors.
• Wide 24–240 V AC/DC control supply range for flexible system integration.
• Supports overtemperature monitoring to detect excessive process or equipment temperatures.
• Supports undertemperature monitoring to identify temperatures below a configured limit.
• Combined overtemperature and undertemperature monitoring enables temperature window supervision.
• Two adjustable temperature thresholds for application-specific monitoring.
• Configurable two change-over relay contacts for control and alarm signalling.
• Supports configurable relay operation to suit different monitoring requirements.
• Sensor short-circuit detection provides additional measuring circuit diagnostics.
• Front-mounted LED indicators provide convenient visual operating status information.
• Compact 22.5 mm housing width saves valuable control cabinet space.
• Screw-terminal connections support secure electrical installation.
• DIN rail mounting simplifies integration alongside other industrial control devices.
• Optional sealable transparent cover helps protect settings against unauthorised adjustment.
• Suitable for industrial heating, cooling, process control and equipment protection applications.

Key Features

• ABB CM-TCS temperature monitoring relay series.
• CM-TCS.12S model with screw-terminal connection technology.
• 0 to +100 °C temperature measuring range.
• 24–240 V AC/DC rated control supply voltage.
• 50/60 Hz AC supply frequency.
• Temperature measurement using a PT100 sensor.
• One temperature sensor measuring circuit.
• Two adjustable temperature thresholds.
• Selectable overtemperature monitoring.
• Selectable undertemperature monitoring.
• Combined temperature window monitoring.
• Two change-over contacts with configurable output operation.
• Output configuration of 2 × 1 c/o or 1 × 2 c/o contacts.
• 250 V AC / 4 A contact rating for compatible control loads.
• Configurable open-circuit or closed-circuit operating principle.
• Sensor short-circuit detection.
• Front-mounted adjustments and LED status indication.
• Double-chamber cage screw-terminal connections.
• DIN rail mounting for industrial electrical control panels.
• IP50 housing protection and IP20 terminal protection.
• Optional sealable transparent cover for protection of front-panel settings.

Technical Specifications

• Manufacturer: ABB
• Series: CM-TCS Temperature Monitoring Relays
• Model: CM-TCS.12S
• ABB order code: 1SVR730740R0200
• ABB product group: 310921-Measuring & Monitoring Relays
• Product type: Temperature monitoring relay
• Temperature measuring range: 0 to +100 °C
• Rated control supply voltage: 24–240 V AC/DC
• AC supply frequency: 50/60 Hz
• Temperature sensor: PT100 resistance temperature sensor
• Number of sensor circuits: 1
• Monitoring functions: Overtemperature, undertemperature and combined overtemperature/undertemperature
• Temperature thresholds: 2 adjustable thresholds
• Output configuration: 2 × 1 c/o or 1 × 2 c/o contacts, configurable
• Contact type: Electromechanical change-over contacts (SPDT)
• Contact rating: 250 V AC / 4 A
• Operating principle: Open-circuit or closed-circuit, configurable
• Sensor fault detection: Short-circuit detection
• Operating ambient temperature: -40 to +60 °C
• Storage temperature: -40 to +85 °C
• Housing protection rating: IP50
• Terminal protection rating: IP20
• Terminal type: Screw terminals
• Connection technology: Double-chamber cage screw terminals
• Mounting type: DIN rail mounting
• Product height: 85.6 mm
• Product width: 22.5 mm
• Product depth: 103.7 mm
• Dimensions (H × W × D): 85.6 × 22.5 × 103.7 mm
• Net weight: 0.151 kg
• EAN: 4016779852722
• Minimum order quantity: 1 piece
• Customs tariff number: 85364900
• RoHS status: Following EU Directive 2011/65/EU
• Application category: Industrial temperature measurement, monitoring and control

Reliable Temperature Monitoring for Industrial Heating, Cooling and Process Automation

Maintaining temperature within defined operating limits is essential in many industrial processes. Excessive temperatures can damage equipment, accelerate component wear or affect product quality, while temperatures below the required operating range can disrupt manufacturing and process performance. The ABB CM-TCS.12S temperature monitoring relay provides dependable temperature supervision across its 0 to +100 °C measuring range.

The relay monitors temperature using a connected PT100 resistance temperature sensor. As the temperature changes, the sensor's resistance changes accordingly. The CM-TCS.12S evaluates this measurement and compares it with the configured temperature thresholds. When a threshold is crossed, its relay outputs change state according to the selected monitoring function and operating principle.

For overtemperature monitoring, the CM-TCS.12S can provide a signal when machinery or process temperature rises above a configured upper limit. In undertemperature monitoring, it can identify when temperature falls below the required operating threshold. The combined monitoring function enables supervision of a defined temperature window, helping ensure that equipment operates within an acceptable temperature band.

The relay provides two change-over contacts that can be configured for individual or combined operation. This flexibility allows the CM-TCS.12S to interface with compatible alarm systems, programmable logic controllers, contactors and other control equipment. The integrated sensor short-circuit detection also helps identify certain measuring circuit faults that could affect temperature supervision.

Its 24–240 V AC/DC supply range makes the relay suitable for a variety of industrial control voltage arrangements. The compact DIN rail-mounted design and screw-terminal connections support installation in machine control cabinets, process panels and electrical distribution equipment. For applications involving heaters, compressors, fans or pumps, the relay output should operate appropriately rated external switching equipment rather than directly switching loads beyond its contact rating.

Typical Applications

• Industrial temperature monitoring and alarm systems.
• Heating system temperature supervision.
• Cooling system temperature monitoring.
• Industrial process temperature control.
• Temperature monitoring of machinery and production equipment.
• Industrial HVAC and ventilation systems.
• Process tanks and vessels using compatible PT100 sensors.
• Temperature window monitoring in manufacturing systems.
• Industrial water heating and circulation equipment.
• Control panels requiring overtemperature or undertemperature alarms.
• Automated machinery and OEM equipment.
• Industrial equipment protection and process supervision.