The Beuler BU509TD Time Delay-Off Relay is engineered for applications that require power to remain active for a specific duration after a trigger is removed. With an adjustable shutoff time between 2 seconds and 3 minutes, it’s ideal for powering fans, hidden compartments, lighting systems, safes, and custom automotive electronics.
This 5-pin SPDT relay handles up to 30 amps and uses very little power (only 120mA). It turns on with a 12V signal and starts a timer when that signal is removed, keeping power on for a short time before turning off. It includes a built-in diode for protection, a green LED to show status, and a standard layout for easy use in 12V systems.
Great for car audio, security, and custom setups that need a delayed shutoff.
Key Features:
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Adjustable delay-off timing (2 seconds to 3 minutes)
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SPDT (Single Pole, Dual Throw) 5-pin configuration
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12V coil with 8V minimum trigger; low-voltage trigger compatible (as low as 1V)
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20A/30A rated contacts for high-current handling
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Internal green LED status indicator
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Built-in diode to prevent feedback issues
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Bosch-style terminal layout: 87, 87a, 30, 86, and 85
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Power draw: 120mA @ 12VDC, idle draw: 2mA
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Dimensions: 1-1/4″ (W) x 1-1/4″ (D) x 2″ (H)
