ABB CM-MSS Thermistor Motor Protection Relay

 - Brand: ABB

- Model: CM-MSS

- Type: Thermistor Motor Protection Relay / Motor Temperature Monitoring Relay

- Part Number: 1SVR430811R1300

- Technical Specifications:

- Thermistor motor protection relay for monitoring motor winding temperature

- Designed for PTC thermistor sensors embedded in motor windings

- Single sensor circuit monitoring

- Number of sensor circuits: 1

- Temperature monitoring with PTC sensors according to DIN 44081 / DIN 44082

- Supply voltage: 220–240 VAC  50/60 Hz

- Supply voltage tolerance: -15% / +10%

- Temperature trip resistance: 3.6 kΩ ±5%

- Reset resistance: 1.6 kΩ ±5%

- Short-circuit detection: Trip below 20 Ω

- Open-circuit detection: Automatic sensor fault monitoring

- Output contacts: 2 changeover contacts (DPDT)

- Contact material: AgCdO

- Rated switching current: 4 A at 250 VAC, AC-15 rating: 3 A at 230 VAC, DC-13 rating: 2 A / 1.5 A at 24 VDC

- Rated insulation voltage (Ui): 250 V

- Rated impulse withstand voltage (Uimp): 4 kV

- Remote reset input: Yes

- Reset modes: Automatic reset, Manual reset via front pushbutton, Remote reset

- LED indicators:  Green LED: supply voltage, Red LED: fault/trip indication

- Response time: <100 ms

- Mounting: DIN rail (EN 50022)

- Protection class: IP50 housing, IP20 terminals

- Operating temperature: -20°C to +60°C

- Storage temperature: -40°C to +80°C

- Standards: IEC/EN 60255-6, IEC/EN 60947-5-1, UL, CSA, CE

Weight: 200 g

Dimensions: 105 x 80 x 25 mm

Country of Origin: Germany 

HS Code: 8536.40