Product Description
ABB CM-MSS.33S
The ABB CM-MSS.33S is a single-function thermistor motor protection relay from the CM range, designed to safeguard motors from overheating. It monitors the motor winding temperature using PTC thermistor sensors (Type A), supporting up to six sensors connected in series. This device features a wide control supply voltage range, making it versatile for various global applications. It offers advanced protection with features like short-circuit detection in the sensor circuit, non-volatile fault storage, and the option for either automatic or manual reset. Equipped with two changeover contacts (2 c/o) and clear LED status indicators, the CM-MSS.33S provides a reliable and easy-to-integrate solution for critical motor protection in a compact, DIN rail mountable housing.
Technical Specifications:
- Function: Thermistor motor protection
- Control Supply Voltage (Us): 24-240 V AC/DC
- Sensor Circuit: 1 circuit for 1-6 PTC sensors (Type A)
- Output Contacts: 2 c/o (SPDT) contacts
- Rated Operational Current AC-12 (230 V): 4 A
- Rated Operational Current DC-12 (24 V): 4 A
- Fault Storage: Selectable non-volatile fault storage
- Reset Method: Automatic or manual reset
- Terminal Type: Screw Connection
- Mounting: DIN Rail (TH 35)
- Dimensions (W x H x D): 22.5 mm x 85.6 mm x 103.7 mm
- Standards: IEC/EN 60255-1, EN 50178
ABB CM-MSS.33S
Mdoel：ABB CM-MSS.33S
