Product Code: CM-MSS.33S

The Thermistor Motor Protection Relay is designed to monitor PTC temperature sensors using one sensor circuit. It features short-circuit detection and dynamic interrupted wire detection. The relay operates based on the closed-circuit principle and has three LEDs for visual indication. It is compatible with control supply voltages of 110-130 V AC and 220-240 V AC. The relay has two CO (SPDT) output contacts rated at 250 V / 4 A. It also includes interrupted-wire monitoring functionality. After a failure has been resolved, the relay can be reset automatically, manually, or remotely. The double-chamber cage connection terminals ensure secure and reliable connections.

Brand	ABB
Connection Type	Double-chamber cage connection terminals
Contacts	2CO (SPDT)
Degree of Protection	IP50 (Housing), IP20 (Terminals)
Dimensions (mm)	22.5W x 85.6H x 103.7D
Duty Time	100%
Function	Short-circuit detection, Dynamic interrupted wire detection
LED Colour	U: Green, F: Red, R: Yellow
Mounting Type	DIN Rail
No. of LED	3
Operational Temperature Range (°C)	-25 to +60
Overvoltage Category	III
Pollution Degree	3
Rated Control Supply Voltage AC (V)	220-240, 110-130
Rated Current (A)	4
Rated Frequency (Hz)	50/60
Rated Impulse Withstand Voltage (kV)	4
Reference No.	1SVR730712R2200
Sensor Type	PTC Type A
Standards and Approvals	CAN/CSA C22.2 No.14, EN 50495, IEC/EN 63000, IEC/EN 60079-7, IEC/EN 60947-5-1, IEC/EN 60947-8, UL 508
Storage Temperature (°C)	-40 to +85
Terminal Type	Screw
Weight (kg)	0.172

Electrical Time Switches, Timers & Control Relays

ABB THERMISTOR MOTOR PROTECTION RELAY WITH SHORT CIRCUIT DETECTION CONTROL 110-130VAC,220-240VAC 2CO CM-MSS.33S

Product Code: CM-MSS.33S

Technical Specifications

Documents

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