1SVR730722R1400 – CM-MSS.21S Therm. motor protec. relay ABB Thermistor Motor Protection Relays
24-240V AC/DC, sensor PTC type A The CM-MSS.21S belongs to the CM-MSS thermistor motor protection relay range. It operates with a rated control supply voltage of 24 – 240 V AC / DC and has a 1 n/c + 1 n/o (SPDT) output with contacts rated at 250 V / 4 A. It features one sensor circuit to monitor PTC temperature sensors and works according to the closed-circuit principle. The sensor circuit of the CM-MSS.21S is short-circuit, as well as interrupted-wire monitored and the relay will be reset automatically after the failure has been removed. This protection relay is certified according to the ATEX directive 94/9/EC. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals. 1SVR730722R1400 – CM-MSS.21S Therm. motor protec. relay ABB Thermistor Motor Protection Relays is a genuine ABB electrical component designed for industrial automation, motor control, and power distribution
Technical Specifications
- Rated Voltage: 250
- Operating Voltage: 250
- Control Supply Voltage: 24 … 240
- Measuring Range: 24-240V
- Rated Frequency: 15 … 400
- GTIN: 4013614496622.0
- Brand: ABB, ABB Group, ABB Limited
- Series: CM-MSS
- Part Number: 1SVR730722R1400
- Rated Operation Voltage: 250
- Rated Current: 4 A
- IP Rating: IP20|IP50
- Pollution Degree: 3.0
- Ambient Air Temperature: '-40 … +85|'-25 … +60
- Power Loss: 2
Key Features
- Part of the ABB CM-MSS range
- 24 … 240 control supply voltage
- 250 rated voltage
- 24-240V measuring range
- Includes ABB GTIN identification for product traceability
Applications
- Automation control systems
- Machine control circuits
- Industrial relay applications
- Panel building projects
Downloads & Product Resources
Datasheet | ABB Product Page | Declaration of Conformity | RoHS Declaration | Dimension Drawings
Browse Related Categories
Thermistor Motor Protection Relays | Timers and Control Relays | Modular Protection Relays





