41
3
Selection and application
3-2 Cascade trip applications
Table 3-5 (a) Summary of combinations used for cascade (backup) coordination
230V AC
Branch circuit breaker Main
circuit
breaker
model
BW
100
EAG
BW
125
JAG
BW
125
RAG
BW
125
JAG
BW
160
EAG
BW
250
EAG
BW
160
JAG
BW
250
JAG
BW
160
RAG
BW
250
RAG
BW
250
HAG
BW
400
EAG
BW
400
SAG
BW
400
RAG
BW
400
HAG
BW
630
EAG
BW
630
RAG
BW
630
HAG
BW
800
EAG
BW
800
RAG
BW
800
HAG
EW
100
EAG
EW
125
JAG
EW
125
RAG
EW
125
JAG
EW
160
EAG
EW
250
EAG
EW
160
JAG
EW
250
JAG
EW
160
RAG
EW
250
RAG
EW
250
HAG
EW
400
EAG
EW
400
SAG
EW
400
RAG
EW
400
HAG
EW
630
EAG
EW
630
RAG
EW
630
HAG
EW
800
EAG
EW
800
RAG
EW
800
HAG
MCCB ELCB
(reference)
Icu (kA)
sym
25 50 100 125 36 50 100 125 50 85 100 125 50 100 125 50 100 125
BW32AAG EW32AAG 2.5 5 10 10 10 5 7.5 7.5 7.5 ––––––––––
EW32EAG 2.5 5 10 10 10 5 7.5 7.5 7.5 ––––––––––
BW32SAG EW32SAG 5 22 50 60 60 10 30 30 30 ––––––––––
BW50AAG EW50AAG 2.5 5 10 10 10 5 7.5 7.5 7.5 ––––––––––
BW50EAG
BW63EAG
EW50EAG
EW63EAG
5 2250606010303030––––––––––
BW50SAG
BW63SAG
EW50SAG
EW63SAG
10 2250606010303030––––––––––
BW50RAG
BW63RAG
EW50RAG
EW63RAG
25– 50858536505050 35505050425050425050
BW100AAG EW100AAG 5 22 50 60 60 10 30 30 30 ––––––––––
BW100EAG EW100EAG 25 – 50 85 85 36 50 50 50 35 50 50 50 35 50 50 35 50 50
BW125JAG EW125JAG 50 – – 100 100 – 50 100 100 50 85 85 85 50 85 85 50 85 85
BW125RAG EW125RAG 100 ––––––100100–– 100125– 100125– 100125
BW160EAG
BW250EAG
EW160EAG
EW250EAG
36–––––
50 60 60 42 50 50 50 42 42 50 42 50 50
BW160JAG
BW250JAG
EW160JAG
EW250JAG
50––––– –10010050858585508585508585
BW160RAG
BW250RAG
EW160RAG
EW250RAG
100–––––––––– 100125– 100125– 100125
BW400EAG EW400EAG 50 ––––––––– 8585100508585508585
BW400SAG EW400SAG 85 –––––––––– 100125– 100125– 100125
BW400RAG EW400RAG 100 ––––––––––– 125– 100125– 100125
BW630EAG EW630EAG 50 ––––––––––––– 851005085100
BW630RAG EW630RAG 100 –––––––––––––– 125– 100125
Tables 3-5 (a) and (b) show MCCB combination used for
cascade (backup) coordination.
To Next Page
Loading...