КВ1 stairwell light switch

Purpose:

• The stairwell light switch controls lighting in floor corridors, stair landings, the areas in front of refuse-chute hatches, passageways and similar spaces. It switches the lighting on and turns it off automatically after a set interval.
• To ДБН В.2.5-23-2003, in new and refurbished residential buildings the artificial lighting of stairwells, floor corridors and the areas in front of refuse-chute hatches must be controlled by flush-mounted switches with a 1–5 min delay, rated up to 2 A, 220 V, 50 Hz.
• Replaces АВ-01-2,5/220 and АВ-2М mechanical stairwell timers.

Key features:

• Supplied in an indoor enclosure, protection class IP20
• Two-wire connection;
• Works with incandescent lamps, fluorescent luminaires and energy-saving compact lamps;
• Electronic control circuit;
• High reliability;
• Button backlit by a neon lamp;
• Modern, ergonomic design;
• Fire-safe construction;
• Low price.

Versions:

• КВ1 — base version, supplied with an enclosure for indoor installation
• КВ1.Smart — differs from the base version in that lighting can be switched on either with or without automatic switch-off.

Documentation:

• Datasheet for the КВ1.1 stairwell-switch time relay (PDF)
• Datasheet for stairwell switch КВ1 (PDF)
• Overview: automatic lighting control
• An article on where КВ-1 is used: “Investing in energy saving today brings you not only your own economic benefit — it strengthens the country’s energy security”
• Zorya automated street lighting control system
• On connecting КВ-1 stairwell switches in parallel to drive a common load.