Firduo Waterproof Anti-spark Switch 200A V2.0 For Electric Skateboard / Electric Surfboards / Robots

Firduo S200 V2.0 Anti-Spark Switch

Bring convenient battery-side power control to your electric skateboard, electric surfboard, or robotics build. The Firduo S200 V2.0 is a MOSFET-based anti-spark switch with a 6–84V operating range, an aluminum-alloy housing, and a 16mm LED control button. Designed to reduce connection sparking, it supports high-current installations with cooling matched to the load. Choose from four cable-and-button configurations to suit your enclosure and wiring layout.

For sustained 200A operation, continuous water cooling must be maintained. The switch body is rated IP68, but power-cord ends are excluded and must be protected separately.

Key Features

• 6–84V operating range: listed for 2–20S battery systems. Check the battery's fully charged voltage, not just its nominal voltage.
• 200A current specification with cooling requirements: continuous water cooling is required for sustained 200A use.
• Aluminum-alloy housing: supports passive or water-cooled heat dissipation according to the application load.
• IP68-rated switch body: protects the main unit; cable ends and external connections require separate sealing.
• 16mm self-reset LED button: choose the LA IP68 or LB IP67 button configuration.
• Two power-cable options: 8AWG cables with a listed length of 9cm, or 7AWG cables with a listed length of 11cm.
• Compact installation footprint: 62 × 60 × 22mm, or 74.6 × 60 × 22mm including water-cooling connectors.

Full Specifications

Model Selection

Dimensions & Mounting Reference

Check enclosure clearance, mounting locations, cable routing, and access to both cooling connections before installation. Dimensions in the drawing are in millimeters.

What's in the Box

Each selected model includes:

• 1 × Firduo S200 V2.0 anti-spark switch with the power cables specified for your chosen model.
• 1 × 16mm LED button with the cable gauge and waterproof rating shown in the model-selection table.

The package contents above apply to one selected model, not all four configurations. Battery, ESC, and external cooling-system equipment are not listed as included.

Compatible Builds & Recommended Pairings

• Electric skateboards and DIY electric vehicles: consider the S200 for battery-to-controller power switching where voltage, current, wiring, and cooling requirements match.
• Electric surfboards and eFoil projects: pair with a suitably rated ESC or VESC-based controller, continuous water cooling for sustained high-current use, and separately sealed cable connections.
• Robotics and custom motor-control projects: use only after checking the controller's input requirements and the expected continuous load.
• Recommended supporting components: appropriately rated battery connectors, power cables, a suitable battery-side fuse, and cooling tubing matched to the actual fittings. Select every component for the intended system current, not just the switch's rating.

Compatibility check: the battery's maximum charged voltage must not exceed 84V, and the ESC's own voltage and current limits must also be respected. This is a power switch, not an ESC, BMS, or mechanical battery isolator. Controller capacitance limits, protection functions, and button timing are not specified in the supplied product information; confirm these details before integrating an unfamiliar controller.

Setup Guide

Safety first: high-current battery systems can cause serious injury or equipment damage. Disconnect the battery before wiring or servicing. If you are unfamiliar with high-current DC installations, use a qualified installer.

1. Check the system and selected model. Confirm fully charged battery voltage is within 6–84V, review the ESC's input limits, and verify that cable lengths, button rating, and enclosure space suit your build. Do not design around the theoretical 500A figure.
2. Mount the switch and button. Use the dimensional drawing to plan clearance and mounting. Protect cables from strain, sharp edges, and moving parts. The LED button is listed as 16mm in diameter; verify its actual mounting dimensions before drilling.
3. Prepare cooling. For sustained 200A operation, provide continuous water cooling. Check tubing fit and leak-test the cooling circuit with the battery disconnected. No passive-cooling current limit or required coolant flow rate is specified.
4. Connect battery and controller with the battery disconnected. Follow the diagram below: battery positive and negative connect to IN+ and IN−; ESC positive and negative connect to OUT+ and OUT−. Verify the markings on your actual unit. Use secure, insulated connections and a suitably rated fuse. Do not guess the red/black/white button-wire pinout or connect those wires directly to battery voltage.
5. Seal and inspect. Protect power-cord ends, joints, and enclosure penetrations separately. The IP68 body rating does not make the complete installation waterproof. Check polarity and inspect for exposed conductors before connecting the battery.
6. Perform a controlled first test. Secure the vehicle or mechanism and keep propellers, wheels, and other moving parts clear. Test without a propulsion load where practical. Verify button operation, ESC power-up and shutdown, and cooling performance before gradually increasing load. Stop if you notice abnormal heat, leakage, or unreliable switching. Disconnect the battery before making changes.

Wiring Diagram

The diagram shows the main power path only. It does not specify the LED button's three-wire pinout. Turning the switch off is not a substitute for physically disconnecting the battery before maintenance.

FAQ

1. What does the S200 anti-spark switch do?

It provides electronic power switching between the battery and ESC and is designed to reduce sparking associated with connecting a battery to a controller. It does not replace the ESC or BMS. Do not assume short-circuit, reverse-polarity, or overload protection, as those functions are not specified in the supplied information.

2. Can it run at 200A continuously, and what does 500A mean?

The original specification lists 200A continuous and maximum current, with continuous water cooling required for sustained 200A operation. Actual installation performance also depends on wiring, connectors, and heat removal. The 500A figure is theoretical and requires heat-sink modification and improved cooling; it is not the standard operating rating. A continuous-current limit without water cooling is not specified.

3. Is the whole assembly waterproof?

No single rating covers the entire installation. The switch body is rated IP68, excluding power-cord ends. LA models include an IP68 button; LB models include an IP67 button. Seal cable ends, connectors, and enclosure entries separately. Immersion depth, duration, and saltwater-use conditions are not specified here, so confirm the intended exposure before use.

4. Which model should I choose?

Choose “8” for 8AWG power cables with a listed length of 9cm, or “7” for 7AWG cables with a listed length of 11cm. Choose LA for the IP68 button with 22AWG button wiring, or LB for the IP67 button with 26AWG button wiring. All listed button cables are 23cm long. Select based on your wiring layout and environmental needs, not an assumed increase in the switch's current rating.

5. Will it work with my battery and ESC, and how is it connected?

Check that the battery's fully charged voltage stays within 6–84V and that the ESC and all other components are rated for the system. The listed 2–20S range does not override the 84V ceiling. Connect battery positive/negative to IN+/IN− and ESC positive/negative to OUT+/OUT− as shown in the diagram. Confirm controller input-capacitance compatibility and button wiring before installation if those details are unknown.