Page 164 - EPR Catalog 2015

Thermistor motor protection relays
Connection diagrams

CM-MSS.11, CM-MSS.21 CM-MSS.12 CM-MSS.13 CM-MSS.31

A1 13 21 A1 11 T1 A1 11 T1 A1 13 21
T2 T1 T2 A3 T2 S1 T2 T1
11 11
2 T1 A1 14 22 T1 A1 T1 A1 A3 T1 A1 14 22
ϑ 12 14 ϑ 12 14
ϑ S1 ϑ
T2 A2 T2 A2
2CDC 252 018 F0014
2CDC 252 022 F0014
2CDC 252 020 F0014
2CDC 252 047 F0014
T2 A2 13 21 T2 A2 13 21

14 22 A2 14 12 A2 14 12 A2 14 22 A2

A1 – A2 Control supply voltage A1 – A2 Control supply voltage A1 – A2 Control supply voltage A1 – A2 Control supply voltage
13 – 14 n/o contact A2 – A3 220-240 V AC 13 – 14 n/o contact
21 – 22 n/c contact 11 – 12/14 c/o contact 11 – 12/14 Control supply voltage 21 – 22 n/c contact
T1 – T2 Measuring circuit 110-130 V AC Automatic reset
T1 – T2 Measuring circuit c/o contact S1 – T2
(jumpered) Measuring circuit
T1 – T2 Measuring circuit T1 – T2

CM-MSS.22, CM-MSS.32, CM-MSS.23, CM-MSS.33 CM-MSS.51 CM-MSE
CM-MSS.41 A1 T1
A1 11 21 A1 11 21 T2
A1 11 21 A3 T2 T1 1T1 1T2/2T2 2T1
T2 T1

T1 A1 11 21 T1 A1 A3 11 21 1T1 A1 11 2T1 A1 21 T1 A1 13
ϑ 14
S1 ϑ S1 ϑ S1 ϑ S1 ϑ
T2 A2
2CDC 252 019 F0014
2CDC 252 021 F0014
2CDC 252 017 F0014
1SVC 110 000 F0140
1T2/2T2 A2 12 14 1T2/2T2 A2 22 24

T2 A2 12 14 22 24 T2 A2 12 14 22 24

24 22 S1 24 22 S1 24 22 S1 13 14 A2
14 12 A2 14 12 A2 14 12 A2

A1 – A2 Control supply A1 – A2 Control A1 – A2 Control A1 – A2 Control supply voltage
voltage 24 V AC/DC supply voltage supply voltage 24 V AC
11 – 12/14 1st c/o (SPDT) A2 – A3 220-240 V AC 11 – 12/14 220-240 V AC T1-T2 Sensor circuit
contact 21 – 22/24 1st c/o (SPDT) 13-14
21 – 22/24 2nd c/o (SPDT) 11 – 12/14 Control supply S1 – 1T2/2T2 contact Output contact -
contact 21 – 22/24 voltage 110-130 (jumpered) 2nd c/o (SPDT) Closed circuit principle
S1 – T2 Automatic reset S1 – T2 V AC 1T1 – 1T2/2T2 contact
(jumpered) (jumpered) Automatic reset
T1 – T2 Measuring circuit T1 – T2 1st c/o (SPDT)
contact Measuring circuit 1

2nd c/o (SPDT) 2T1 – 1T2/2T2 Measuring circuit 2
contact

Automatic reset

Measuring
circuit

2/97 ABB | Catalog Electronic Products and Relays 2015 | 2CDC 110 004 C0210