ABB – 1SVR430810R9300 (CM-MSS) – Thermistor Motor Protection Relay

Product & Series: ABB CM‑MSS thermistor motor protection relay, single‑sensor configuration (MPN SVRR)  

Supply Voltage: – V AC/DC wide-range power supply on A‑A terminals  

Sensor Interface: Monitors one PTC thermistor sensor (per motor winding); includes built-in wire-break detection on the sensor loop  

Output Contacts: DPDT—one changeover and one normally‑open contact for control/trip signaling  

Reset Options:

• Test/reset button on front

• Configurable automatic/manual/remote reset via jumper on S‑T terminals  

Indicator LEDs: Green = supply OK; Red = fault/trip indication  

Key Protections: Detects PTC over‑temperature and sensor line short‑circuit

Mechanical Specs:

• DIN‑rail mount, . mm wide

• Dimensions: ~ × . ×  mm

• Power consumption ~. VA ( V DC)  

Compliance & Use: Meets IEC ‑‑; suitable for motor overload and winding protection; optional ATEX versions available