Page 96 - Changeover switch

96 ABB TRANSFER AND CHANGE-OVER SWITCHES

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Technical data

Compact automatic transfer switches OTM40...125_

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Compact automatic transfer switches
Switch size
Data according to IEC 60947-6-1 OTM40_ OTM63_ OTM125_
Class of equipment PC PC PC
Rated short-time withstand current Icw (r.m.s.) 690 V 0.1s kA 5 5 5
Conditional short-circuit current Icc (r.m.s.) 415 V kA 50 50 50
Corresponding fuse rating gG/aM fuse 415 V A 125 125 125
Rated operational current, AC-31B up to 415 V A 40 63 125
Rated operational current, AC-32B up to 415 V A 40 63 125
Rated operational current, AC-33B up to 415 V A 40 63 80
1) These values are given for guidance and may vary according to the motor manufacturer
2) Short circuit duration > 50ms, without fuse protection
3) Operating cycle: O - I - O - II - O