This Knob-Type Battery Disconnect Switch is a heavy-duty power control device designed for automotive, marine, RV, and off-road applications. It enables quick, tool-free isolation of battery power to prevent parasitic drain, protect electrical circuits, and enhance maintenance safety.
Featuring high-conductivity brass terminals (dual-type: ring terminal + post terminal) and a flame-retardant ABS housing, the switch delivers stable conductivity while resisting corrosion, vibration, and extreme environmental conditions. Its intuitive red knob operation (On/Off positions) simplifies power control, making it ideal for boats, trucks, campers, and auxiliary battery setups.
Featuring high-conductivity brass terminals (dual-type: ring terminal + post terminal) and a flame-retardant ABS housing, the switch delivers stable conductivity while resisting corrosion, vibration, and extreme environmental conditions. Its intuitive red knob operation (On/Off positions) simplifies power control, making it ideal for boats, trucks, campers, and auxiliary battery setups.
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Parameter
| Rated Voltage | 12V - 48V DC (Wide Voltage Compatibility) |
| Continuous Rated Current | 200A |
| Peak Current (10s) | 1000A |
| Compatible Battery Capacity | Works with all types of lead-acid/lithium batteries (universal for common vehicle models) |
| Main Material | Brass (conductive terminals) + Engineering Plastic (switch base) |
| Protection Rating | IP65 (Dust & Waterproof, suitable for harsh outdoor environments) |
| Installation Method | Side Mount / Terminal Direct Connection |
| Terminal Size | Fits standard car battery posts (17-21mm diameter) |
| Knob Positions | 2 positions: ON (Connected) / OFF (Disconnected) |
Why This Outperforms Competitors?
Brass vs. Ordinary Metal Terminals – High-conductivity brass resists corrosion better than standard steel terminals, extending service life in marine/salty environments.
Dual Terminal Flexibility – Most competitors only offer single terminal types; our ring+post design adapts to more wiring setups without extra adapters.
Intuitive Knob Control – Faster and more user-friendly than lever-type switches, especially in tight installation spaces.
Compact & Heavy-Duty – Smaller footprint than bulkier switches, while maintaining 200A continuous current capacity for high-power accessories.
Cost-Effective Durability – Flame-retardant housing and vibration-resistant structure outlast plastic-only competitor models in harsh conditions.
Key Advantages
Maximum Safety Protection: After power-off, the circuit is completely cut off, eliminating risks of battery drain, fire caused by short circuits, and electric shock during maintenance.
Ultra-Durable Materials: Brass terminals offer strong conductivity and oxidation resistance, while the engineering plastic base is high-temperature resistant and impact-resistant, withstanding extreme temperature differences and vibrations.
Tool-Free & Quick Operation: The large-sized knob design allows easy switching even with gloves on, enabling 1-second power-off in emergencies.
Full-Scenario Adaptability: IP65 dust and waterproof rating ensures stable performance in rainy off-roading, coastal yachting, and desert driving.
Non-Destructive Installation: Directly replaces the original car battery terminals without modifying wiring, compatible with over 99% of fuel vehicles and new energy vehicles.
