Specifications

Product Type

Thermistor motor protection relay

Brand

ABB

Series

CM-MSS

Function 1 sensor circuit; automatic, manual or remote reset configurable; monitoring of PTC temperature sensors	Electrical Endurance 100000 cycle	Rated Control Supply Voltage (Us) 110 to 130 V AC; 220 to 240 V AC
Rated Insulation Voltage (Ui) 300 V AC	Rated Operational Current AC-15 (Ie) 3 A	Measuring Range PTC sensor circuit: maximum total resistance < 750 O; switch-off resistance 2.7 kO ± 5 %; switch-on resistance 1.2 kO ± 5 %
Rated Frequency 50/60 Hz	Terminal Type Screw terminals	Rated Operational Current AC-12 (Ie) 4 A
Rated Operational Current DC-12 (Ie) 4 A	Rated Operational Current DC-13 (Ie) 2 A	Time Range Response time < 100 ms
Minimum Switching Capacity 24 V / 10 mA	Rated Operational Voltage (AC/DC) 250 V	Output 2 c/o (SPDT) contacts
Short-Circuit Protective Devices 10 A fast-acting (n/c contact); 10 A fast-acting (n/o contact)	Mechanical Durability 30000000 cycle

Conductor Cross Section Flexible

1 x 0.5 to 2.5 mm²; 2 x 0.5 to 1.5 mm²

Conductor Cross Section Solid Core

1 x 0.5 to 4 mm²; 2 x 0.5 to 2.5 mm²

Housing Material

UL 94 V-0

Depth 103.7 mm	Height 85.6 mm	Weight 0.174 kg
Width 22.5 mm

Storage Temperature

-40 to 85 °C

Operating Temperature

-25 to 60 °C

IP Rating

IP50 (housing); IP20 (terminals)

Standards and Approvals

IEC/EN 60947-5-1; IEC/EN 60947-8; cULus E140448; CCC; EAC; GL; RMRS; CE; RCM; RoHS

ABB CM-MSS.23S Thermister Motor Protection Relay PTC TypeA 110-130VAC 220-240VAC 2CO SPDT 50/60Hz