The 90 AM range, in addition to auxiliaries common for the all circuit breakers, comprises many modular accessories for the protection, command, programming, measurement and signalling in electrical systems.
APPLICATIONS: they have a three positions built-in toggle handle switch (A - O - I) to enable permanent opening or closing manually leaving out normal contactor function Position A: working as normal contactor Position O: working as manual control contactor (contacts locked mechanically) Position I: working as manual control contactor (contacts are switched without control coil voltage). When coil is energized the toggle handle switch is automatically set to position A maintaining the previuos contacts status. CHARACTERISTICS: they can be combined with auxiliary contacts and sealing terminal covers NOTE: it's suggested the use of a spacer insert between adjacent contactors to ensure optimum operation.
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