Staircase Time Relay FF AS-222T 240V 10A for DIN rail, 2 modules, IP40

FF AS-222T is a staircase time relay designed for DIN-rail mounting. The device operates from a 240V supply and provides a single 10A switching contact in a compact 2-module housing. With IP40 protection, the relay is intended for indoor electrical panels and enables timed control of lighting circuits in staircases, corridors and other common areas to ensure automatic switch-off after a preset interval.

Advantages

The relay’s DIN-rail format and 2-module width save space in distribution boards and simplify installation. A 240V operating voltage and 10A contact rating make it compatible with common lighting loads, and IP40 enclosure protection suits indoor panel environments. Time control functionality reduces unnecessary energy consumption by turning lights off automatically after the selected duration.

Suitable for

• Staircase lighting control in residential and multi-storey buildings
• Corridor and common-area illumination in apartment blocks and offices
• Timed control of lighting circuits where automatic shut-off is required
• Retrofit installations and new electrical panels with DIN-rail mounting

Key specifications

• Supply voltage: 240 V AC
• Switching capacity: 10 A (resistive/inductive loads within rated limits)
• Mounting: standard DIN-rail
• Width: 2 modules (DIN module units)
• Enclosure protection: IP40 (indoor use)
• Function: adjustable timed relay for staircase lighting

How to use

Mount the FF AS-222T onto a standard DIN-rail inside an appropriate electrical distribution panel. Connect the supply and load conductors according to the wiring diagram supplied with the device, observing live and neutral connection requirements and ensuring the load does not exceed the 10A rating. Configure the time setting following the manufacturer’s instructions to set the desired illumination interval. After wiring and configuration, test the relay by triggering the control input and verifying that the circuit switches on and then off after the selected delay.

Usage recommendations

Use the relay only in dry, indoor enclosures with proper protection class IP40. Check that connected lighting loads and inrush currents (e.g., for fluorescent or LED drivers) remain within the relay’s rated capacity. For installations with higher currents or specific lamp types, consider contactors or relays rated for greater switching capacity. Ensure all installation and maintenance work is performed by a qualified electrician and that local wiring regulations are followed.