Product Code: CM-MSS.51S

Specifications

Product Type	Thermistor motor protection relay
Brand	ABB
Series	CM-MSS.51
Connection Type	Double-Chamber Cage Connection Terminals
Function	2 sensor circuits; single or accumulative evaluation configurable; automatic, manual or remote reset; configurable short-circuit detection and non-volatile fault storage; dynamic interrupted-wire monitoring
Electrical Endurance	100000 cycle
Over Voltage Category	III
Rated Control Supply Voltage (Us)	24 to 240 V AC/DC
Rated Impulse Withstand Voltage (Uimp)	4 kV
Rated Insulation Voltage (Ui)	300 V AC
Rated Operational Current AC-15 (Ie)	3 A
Contact Configuration	1CO+2CO
Measuring Range	PTC sensor circuit: maximum total resistance < 750 O per circuit; switch-off resistance 2.83 kO ± 1 %; switch-on resistance 1.1 kO ± 1 %; short-circuit switch-off < 12 O; short-circuit switch-on > 19 O
Rated Current	4 A
Rated Frequency	15 to 400 Hz
Rated Voltage	24-240 VAC/VDC
Sensor Type	PTC Type A
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 x 1 c/o (SPDT) contacts or 1 x 2 c/o (SPDT) contacts, configurable
Short-Circuit Protective Devices	6 A fast-acting (n/c contact); 10 A fast-acting (n/o contact)
Mechanical Durability	30000000 cycle
Colour	Green, Red, Yellow
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
Model	Short Circuit Detection (Configurable), Dynamic Interrupted Wire Detection, Non Volatile Fault Storage (Configurable)
Mounting Type	DIN Rail
Depth	103.7 mm
Height	85.6 mm
Weight	0.145 kg
Width	22.5 mm
Pollution Degree	3
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; ATEX; GL; RMRS; CE; RCM; RoHS