Time Delay on Release Relay - 12V DC, 30 Amp | Del City
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Time Delay on Release Relay - 12V DC, 30 Amp

Black Accele Electronics BU509TD relay with prongs, featuring adjustable time delay, suitable for 12VDC applications.
Black Accele Electronics BU509TD relay with prongs, featuring adjustable time delay, suitable for 12VDC applications.

Adjustable 12V Timer Relay for Extended Power Supply

The 12 volt change over relay is an adjustable relay that can maintain a power supply for as short as 2 seconds, or for as long as 3 minutes after power is switched off. Essentially, the solid state timing circuit with variable resistor within the relay allows for this to happen. In order to adjust the timing, the easy access top waterproof adjusting cover must be removed, and the adjustable potentiometer must be turned. A common use for this type of change over relay is to power a vehicle's dome lights, which allows drivers and passengers additional time to exit the vehicle before the courtesy lights go dark. This is just one example of many applications for timer relays. This particular change over time delay relay is normally closed/normally open and fits a standard 5 terminal harness configuration.

  • Solid state timing circuit with variable resistor allows for an adjustable time from 2 seconds to 3 minutes (must remove cover to reach adjustment screw on base).
  • Fits standard relay 5 terminal harness configurations.
  • Built in diode to stop timer feedback issues.
  • SPDT Change Over NC/NO (form C).
  • Rated up to 20/30 Amp, 12V DC.
  • Voltage range: 8.2 ~ 14.8V DC.
  • Operating temperature range: -40°C to 80°C (-40°F to 176°F).
  • Item 74985 can be used with relay block 73564 and relay terminals 73592
  • Click here for product data sheet
74985 Accele Electronics BU509TD, NC/NO Change Over Relay, Adjustable 2 sec.-3 min, 20/30A, 12VDC (1 MIN) DRAWING
IN STOCK
QTY PRICE UOM
1+ 26.41300 1EA
10+ 24.68600 1EA
50+ 20.71000 1EA
Item Description
Price
1+ Ext. Price 10+ Ext. Price 50+ Ext. Price
Qty in Package In Stock Add to cart
74985 Accele Electronics BU509TD, NC/NO Change Over Relay, Adjustable 2 sec.-3 min, 20/30A, 12VDC (1 MIN) DRAWING
26.413 26.41 24.686 24.69 20.71 20.71
1EA