FF stairway automatic switch AS-223 240V 16A for DIN rail 1 module IP40

FF stairway automatic switch AS-223 240V 16A for DIN rail 1 module IP40 is a compact control device for automating lighting circuits in stairways, corridors and common areas. Designed for installation on a standard DIN rail in a single-module enclosure, the unit operates from 240 V mains and is rated for a 16 A load. The IP40 protection class provides basic protection against solid objects while allowing installation inside distribution cabinets and utility enclosures. Typical functions include timed switching and automatic turn-off to reduce energy consumption in residential and small commercial electrical installations.

Advantages

The device’s single-module format saves DIN rail space and simplifies integration into existing distribution boards. Rated for 16 A at 240 V, it supports a wide range of lighting loads including LED and incandescent fixtures when used within specified limits. IP40 enclosure ensures safe indoor installation in panel interiors while the straightforward control logic enables timed operation without the need for complex programming. Built for reliable on/off control, the switch helps reduce unnecessary energy use by automatically turning lights off after a preset interval.

Suitable for

• Timed control of stairway and corridor lighting in apartment buildings
• Automatic lighting in common areas of small commercial premises
• Energy-saving retrofit projects in residential electric panels
• Centralized control of entrance halls and utility rooms

Key specifications

• Supply voltage: 240 V AC
• Rated current capacity: 16 A
• Mounting: DIN rail, single-module enclosure
• Protection rating: IP40 (indoor panel use)
• Control type: timed automatic switching for lighting circuits
• Typical application: stairway, corridor and common-area lighting

How to use

Install the unit on a standard DIN rail inside a distribution cabinet and connect the mains input and switched lighting output according to local wiring regulations. Configure the timing and control inputs as required for the installation so that the device switches lights on via a pushbutton, sensor or remote contact and turns them off automatically after the set interval. Ensure the connected load does not exceed the 16 A rating and that associated protective devices (fuses or circuit breakers) are correctly sized.

Usage recommendations

For reliable operation, place the unit inside a ventilated distribution cabinet, avoid exposure to moisture and dust beyond IP40 limits, and verify compatibility with the connected light sources. When integrating with LED lighting, confirm inrush and startup characteristics do not exceed the switch’s capacity. Follow local electrical codes and use qualified personnel for installation and configuration.