How to make an electric trap for rats? - briefly
Build a low‑voltage circuit with two metal plates spaced a few centimeters apart, connect them to a battery through a relay that activates when the plates are bridged, and mount the assembly in a sturdy box with a baited entry point. Seal the box, position the bait near the plates, and verify that the device complies with local safety regulations.
How to make an electric trap for rats? - in detail
An electric rat trap consists of a power source, a conductive grid, a control circuit, and a housing that prevents accidental contact.
The power source should be a low‑voltage, high‑current supply such as a 12 V sealed lead‑acid battery or a regulated DC adapter delivering 2–3 A. Connect the positive terminal to one side of the grid and the negative terminal to the opposite side through a switching device.
The conductive grid is formed from stainless‑steel or nickel‑plated rods spaced 5–8 mm apart. Mount the rods on an insulated frame, ensuring all connections are tight and corrosion‑resistant.
The control circuit includes a trigger mechanism that detects the presence of a rodent and closes the circuit instantly. A reliable design uses a pressure‑sensitive plate or a infrared beam break. When the trigger is activated, a MOSFET or relay completes the circuit, delivering a short, high‑current pulse (approximately 2 A for 0.1 s) that incapacitates the animal.
The housing must be made of nonconductive material, such as thick acrylic or PVC, with a one‑way entrance funnel that guides the rodent onto the grid but prevents escape. Include a removable tray for safe disposal of the carcass and a clear window for visual inspection.
Assembly steps:
- Install the battery or adapter in a secure compartment.
- Attach the conductive rods to the insulated frame, verifying polarity.
- Wire the trigger sensor to the MOSFET gate (or relay coil) following the schematic.
- Connect the power leads through the switch to the grid.
- Seal the assembly inside the housing, leaving only the entrance funnel exposed.
- Test the device with a dummy load to confirm voltage drop and pulse duration.
- Calibrate the trigger sensitivity to avoid false activations.
Safety considerations:
- Encase all live conductors; label the device with voltage and current warnings.
- Use a fuse rated slightly above the operating current to protect against short circuits.
- Provide an emergency disconnect switch accessible without opening the housing.
- Keep the trap out of reach of children and non‑target animals.
Maintenance involves periodic cleaning of the grid, inspection of battery terminals, and replacement of the trigger sensor after extensive use. Properly maintained, the trap delivers rapid, humane control of rodent populations while minimizing risk to humans and pets.