Helios Ventilatoren RS 3+1 Reversing switch

Revision switch with auxiliary contact, constructed in plastic casing for surface-mounting. Rotary drive as an operating element with padlock, thereby three locking possibilities by attaching a padlock in position '0'. Additional possibility for locking in position 'I', for protection against switching-off by unauthorized persons, especially for protection against switching-off of smoke exhaust fans.

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