BRT-V491 is an electronic delay-off timer module which is to be used together with a traditional mechanical ON/OFF switch and enable it to have automatic delay-off function with precise timing. Designed for easy installation and retrofit, it directly sits behind the traditional switch panel and fits into a standard wall box.

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• · Small modular design;
  · Easy installation with two wire connection (no neutral wire required);
  · Adjustable delay-off time with 16 precise discrete timing settings from 30 seconds to 110 minutes;
  · Good for all kind of loads;
  · ABS-V0 flame resistance material; and
  · High quality build.
  
• Fig. 1 and Fig. 2 show BRT-V491 Electronic Delay-off Timer Module viewed from two different angles 
  
  It has dip-switches for adjusting delay-off time manually to a preset value (to be done at initial installation) at one end and has lead wires and terminal screw blocks for wiring connections at the other end. 
  
  
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• BRT-V491 Electronic Delay-off Timer Module can be used together with a traditional mechanical switch for automatically turning off various loads such as fans and lights. It is perfect for saving energy and bringing convenience and safety to our daily life and work. It has wide applications at various locations such as kitchen hotels washing room storage room etc
   
  Typical application scenes include:
  1. Exhaust Fan delay-off control:  When using BRT-V491 in kitchen or washroom the user can set the delay time according to the ventilation need for the site so that the power is automatically turned off after the odor or moisture is cleared out.
   
  2. Lighting: When lighting is controlled by a traditional mechanical switch sometimes there is a safety concern because the light is always immediately turned off. With BRT-V491 installed behind a traditional mechanical switch the user can always exit an area with peace of mind because of the delay-off feature.