Refer: Silicon Chip Magazine July 2014
A simple but versatile device to switch a relay when its input voltage crosses a threshold. Use it to prevent a lead-acid battery from being over-charged or in automotive applications to trigger an extra fuel pump under high boost, anti-lag waste-gate shutoff for example. A PCB mount 12V DPDT relay is supplied but the circuit caters for other types depending on the voltage and current you want to switch. In conjunction with a standard battery charger and suitable resistor, the device can also be used to trickle charge a lead-acid battery.

* 5 - 24VDC operation
* Adjustable trigger threshold
* Trigger on high or low voltage
* Output state indicator LEDs
* Multiple relay options (Kit supplied with onboard relay)

Kit supplied short-form with double sided, solder-masked and screen-printed PCB, onboard relay and electronic components. Cabling and case not included. PCB size: 107 x 61mm

Optional relays:
24V 12V DPDT PCB Relay: SY-4053
30A 12V SPST Horn Relay: SY-4040
30A 12V SPDT Horn Relay: SY-4070
60A 12V SPDT Horn Relay: SY-4074
Assembly required
Product Length 107mm
Product Width 61mm


Brand Jaycar

Be The First To Review This Product!

Help other Little Bird Company Pty Ltd users shop smarter by writing reviews for products you have purchased.

Write a product review

More From This Category