Why Choose the ABB CM-TCS.23P Temperature Monitoring Relay?
The ABB CM-TCS.23P (1SVR740740R9300) is a versatile temperature monitoring relay designed to supervise temperatures in industrial machinery, equipment and process applications. Part of ABB's CM-TCS measuring and monitoring relay range, it provides adjustable temperature thresholds for detecting overheating, undertemperature and temperatures outside a defined operating window.
Operating from a 24 V AC/DC control supply, the CM-TCS.23P features a temperature measuring range of 0 to +200 °C and one sensor measuring circuit. It uses a Pt100 resistance temperature sensor and provides two adjustable switching thresholds, enabling flexible temperature monitoring for industrial control applications.
The relay features two changeover (SPDT) output contacts rated at 250 V / 4 A, configurable output arrangements and ABB's Easy Connect push-in terminals. Its compact 22.5 mm DIN rail housing and front-mounted adjustment controls make it suitable for control cabinets where reliable temperature supervision and efficient installation are required.
Key Advantages
- Temperature monitoring from 0 to +200 °C for industrial equipment and processes.
- 24 V AC/DC control supply suitable for automation systems.
- Supports overtemperature, undertemperature and window monitoring.
- Two adjustable temperature thresholds for flexible switching control.
- One Pt100 sensor measuring circuit for resistance temperature measurement.
- Two changeover (SPDT) contacts rated at 250 V / 4 A.
- Configurable output arrangements for common or separate switching signals.
- Sensor short-circuit monitoring supports fault detection.
- Front-mounted adjustment controls simplify commissioning.
- ABB Easy Connect push-in terminals reduce wiring effort.
- Compact 22.5 mm housing width conserves panel space.
- DIN rail mounting supports straightforward industrial installation.
- Suitable for machinery, heating equipment and process temperature supervision.
- Optional sealable transparent cover helps prevent unauthorised adjustments.
Key Features
- ABB CM-TCS.23P temperature monitoring relay.
- Manufacturer order code: 1SVR740740R9300.
- Rated control supply voltage: 24 V AC/DC.
- Temperature measuring range: 0 to +200 °C.
- Sensor type: Pt100 resistance temperature sensor.
- Number of sensor circuits: 1.
- Monitoring functions: Overtemperature, undertemperature and window monitoring.
- Switching thresholds: 2 adjustable temperature thresholds.
- Output contacts: 2 changeover (SPDT).
- Contact rating: 250 V / 4 A.
- Output configuration: Configurable common or separate output arrangement.
- Sensor diagnostics: Short-circuit detection.
- Connection technology: Easy Connect push-in terminals.
- Front-mounted controls for threshold and function configuration.
- Industrial DIN rail mounting.
- Housing width: 22.5 mm.
- Optional sealable transparent protective cover.
Technical Specifications
- Manufacturer: ABB
- Product series: CM-TCS
- Model: CM-TCS.23P
- ABB order code: 1SVR740740R9300
- ABB product group: 310921-Measuring & Monitoring Relays
- Product type: Temperature monitoring relay
- Rated control supply voltage: 24 V AC/DC
- Measuring temperature range: 0 to +200 °C
- Temperature sensor: Pt100
- Number of sensor circuits: 1
- Number of adjustable thresholds: 2
- Overtemperature monitoring: Yes
- Undertemperature monitoring: Yes
- Window temperature monitoring: Yes
- Sensor short-circuit detection: Yes
- Output contacts: 2 changeover (SPDT)
- Contact rating: 250 V / 4 A
- Output configuration: 2 × 1 changeover or 1 × 2 changeover, configurable
- UL/CSA contact rating: B300
- Maximum UL/CSA output operating voltage: 300 V AC
- Terminal type: Easy Connect push-in terminals
- Connection technology: Screwless spring-clamp connection
- Housing protection rating: IP50
- Terminal protection rating: IP20
- Mounting type: DIN rail mounting
- Operating ambient temperature: −40 to +60 °C
- Storage temperature: −40 to +85 °C
- Housing width: 22.5 mm
- Net weight: 0.127 kg
- EAN: 4016779852821
- Customs tariff number: 85364900
Reliable Temperature Monitoring with Adjustable Thresholds
The ABB CM-TCS.23P monitors temperature through a connected Pt100 resistance temperature sensor. The resistance of the sensor changes with temperature, allowing the relay to evaluate the monitored condition and compare it against the configured switching thresholds.
With a measuring range of 0 to +200 °C, the CM-TCS.23P is suitable for supervising industrial equipment and processes that require temperature-based switching signals. Its two adjustable thresholds allow the monitoring response to be adapted to the installation.
The relay provides overtemperature monitoring to detect excessive temperatures, undertemperature monitoring to identify temperatures below a selected limit and window monitoring to supervise whether the measured temperature remains within a defined range.
These monitoring functions can be integrated into industrial control systems to activate alarms, signal PLC inputs or operate appropriately rated external control devices.
Overtemperature, Undertemperature and Window Monitoring
The CM-TCS.23P offers two adjustable temperature thresholds, allowing different operating conditions to be monitored with one compact relay.
In overtemperature monitoring, the relay can indicate when the measured temperature rises beyond the configured threshold. This is useful for identifying overheating in equipment, machinery and industrial processes.
In undertemperature monitoring, the relay can detect when the measured temperature falls below the selected limit. This can be useful in applications where a minimum operating temperature must be maintained.
With window monitoring, two thresholds define an acceptable temperature range. The relay can provide a switching response when the measured temperature moves outside the configured operating window, supporting both high-temperature and low-temperature supervision.
The output contacts can be configured for suitable common or separate switching arrangements, allowing the temperature monitoring signals to be integrated into the control system according to the required operating function.
Easy Connect Installation and Industrial Control Integration
The ABB CM-TCS.23P uses Easy Connect push-in terminals, providing screwless spring-clamp electrical connections that simplify installation and reduce routine maintenance requirements.
Its two changeover contacts, rated at 250 V / 4 A, support integration with compatible alarm circuits, PLC inputs, contactor controls and other industrial switching arrangements.
The relay also incorporates sensor short-circuit detection, helping identify a fault in the connected measuring circuit. Correct sensor selection, wiring and installation remain important for dependable temperature measurement.
The compact 22.5 mm DIN rail housing makes the device suitable for industrial control cabinets and machinery panels. Front-mounted adjustment controls support convenient commissioning, while an optional sealable transparent cover can help protect the configured settings against unauthorised changes.
Typical Applications
- Industrial temperature monitoring from 0 to +200 °C.
- Overtemperature protection signalling for machinery and equipment.
- Undertemperature detection in industrial processes.
- Temperature window monitoring in automation systems.
- Heating equipment temperature supervision.
- Industrial ovens and heating processes within the specified measuring range.
- Machine temperature alarm systems.
- Process equipment requiring two adjustable temperature thresholds.
- PLC-based temperature fault signalling.
- Industrial electrical control panels.
- OEM machinery requiring Pt100 temperature monitoring.
- Industrial automation applications using 24 V AC/DC control supplies.
- Equipment requiring separate high-temperature and low-temperature monitoring signals.
- DIN rail control cabinets requiring compact monitoring relays.
