Lynx Anti-Spark Power Switch
£12.50
These tiny power switches can be turned on and off with a twist of a M2.5 hex key and are legal for UK beetle events. They’re a great option for powering your robot on and will stay on through intense vibration and high G-force impacts! Lynx switches have a pre-charge circuit built in to reduce sparking in high voltage robots. Note: Must be fully turned on and off to prevent burning out pre-charge resistor, see below. Operation, assembly, mounting & wiring diagram below. CAD: step
44 in stock
Operation:
It does not take a lot of force to make a good connection, too much torque can strip the threads.
- Powering On: Like normal switches, it must be fully screwed down clockwise until you feel resistance for the full on position. This is a few full turns. This switch has an intermediate pre-charge position that it should not stay in for long (you’ll see your power LED flicker on during this state)
- Powering Off: The lynx switch must be fully unscrewed anticlockwise until you feel resistance and it is topped out for the off position
WARNING: Running a bot in the intermediate pre-charge state will burn out the pre-charge resistor.
Mounting:
Two 2.5mm mounting holes, spaced 10mm apart, can pass-through 2mm screws, or can be tapped for 3mm screw threads. Ensure your switch is securely mounted for battle by either bolting through with M2 nuts or tapping for M3. Ensure a power light clearly visible nearby.
Assembly Instructions:
- Remove oxidation from contacts with sandpaper.
- Solder the battery negative to the top short tab and use heat shrink. (see diagram below) – add a fuse here.
- Solder the wire to the ESCs to the long bottom tab and use heat shrink.
- Make sure the screw is fully unscrewed in the off position before plugging in your battery.
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