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22Kw motor isolator
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<blockquote data-quote="Sidewinder" data-source="post: 527590" data-attributes="member: 9512"><p>For black/grey it should be circuit current rated, the AC21 rating is not so important because it is for routine isolation for maintenance only, therefore should only be operated when the circuit is not under load.</p><p>For red/yellow the AC23 rating should be motor/circuit full load current as it is for use under emergency switching condition which means it must be able to break the full load current.</p><p>That is what the red/yellow actuator denotes, that the unit is suitable for emergency switching and emergency isolation under normal and abnormal conditions.</p><p>Whereas the black/grey actuator indicates that it is an off load isolator for routine isolation only, not for use under emergency situations.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 527590, member: 9512"] For black/grey it should be circuit current rated, the AC21 rating is not so important because it is for routine isolation for maintenance only, therefore should only be operated when the circuit is not under load. For red/yellow the AC23 rating should be motor/circuit full load current as it is for use under emergency switching condition which means it must be able to break the full load current. That is what the red/yellow actuator denotes, that the unit is suitable for emergency switching and emergency isolation under normal and abnormal conditions. Whereas the black/grey actuator indicates that it is an off load isolator for routine isolation only, not for use under emergency situations. [/QUOTE]
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