When do you need an intermediate switch? | zangra

surface mount white bakelite intermediate toggle switch

switch.003.003
€40.50
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shipped within 1-2 days

ZANGRA SAYS TECHNICAL DESCRIPTION ASSOCIATED PRODUCTS

Do not use an electrical screwdriver
Do not use electrical screwdrivers when installing bakelite items. We recommend to first drill a hole in the wall, fit the right plugs inside and use a manual screwdriver to fix the screws in place. Be especially careful during the final tightening of the screws. 

Intermediate switches are used when three or more switches are needed to control one single light. For example, if four switches control the same light, you would need 2 two-way switches and 2 intermediate switches. This situation could arise in a staircase with several landings: a switch at the bottom of the stairs, a switch at the top of the stairs and a switch for each landing space.

Supplied without back cover. To be ordered separately.