Page 165 - EPR Catalog 2015

Thermistor motor protection relays
Circuit diagram

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

V+ V+ V+
A1
A1 A1 or A3

M 3~ T1 14 M 3~ T1 11 M 3~ T1 11
t μC 22 t T2 t T2
14 2
T2 21 12
13 14
2CDC 253 023 F0014 2CDC 253 024 F0014 12 2CDC 253 025 F0014
A2 A2 A2
V- V- V- 14
22
CM-MSS.22 CM-MSS.23 CM-MSS.31
21
V+ V+ V+ 13

A1 11 A1 or A3 11 A1
21 21

T1 T1 T1
T2
M 3~ M 3~ M 3~ μC
t
T2 T2
Reset S1 t2CDC 253 026 F0014 t2CDC 253 027 F0014 2CDC 253 028 F0014
V- A2
24 24
22
14 Reset 22
12 14 Test /

S1 Reset
A2 12

V- S1
A2

V-

CM-MSS.32, CM-MSS.41 CM-MSS.33 CM-MSS.51

V+ V+ V+
A1
A1 or A3 A1
11
M 3~ T1 11 M 3~ T1 21 11
t μC 21 t μC 21
1T1
Test / T2 24 Test / T2 24
Reset 22 Reset M 3~ 22
S1 14 S1 14
V- A2 12 V- A2 t 1T2/ 12
2T2
μC

2CDC 253 015 F0014 24 M 3~2CDC 253 029 F0014 2CDC 253 016 F0014
22 2T1
14 t
12

Test / S1
Reset A2

V-

CM-MSE

1SVC 110 000 F0141

2CDC 110 004 C0210 | Catalog Electronic Products and Relays 2015 | ABB 2/98