DC 32V 100A Car Rally Battery Switch Disconnector Power Isolator Cut Off Switch Kit for Truck Car Motorcycle Boat - Image 1

DC 32V 100A Car Rally Battery Switch Disconnector Power Isolator Cut Off Switch Kit for Truck Car Motorcycle Boat - Image 2

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DC 32V 100A Car Rally Battery Switch Disconnector Power Isolator Cut Off Switch Kit for Truck Car Motorcycle Boat

specifications

Operating Voltage: 12 V DC (compatible with 12 V–32 V systems)
Rated Current (Continuous): 100 A
Maximum Voltage: Up to 32 V DC (varies by model)
Intermittent Current Capacity: 150 A (short duration)
Cranking / Surge Current Rating: 350 A for 5 seconds
Contact Resistance: ≤ 50 mΩ
Insulation Resistance: ≥ 100 MΩ at DC 500 V
Dielectric Strength: AC 1000 V / 1 min (between open contacts)
Operating Temperature Range: −30 °C to +60 °C
Housing Material: High-strength ABS plastic (heat- and impact-resistant)
Internal Contact Material: Copper or silver-plated copper alloy
Terminal Studs: Brass or copper, typically M8 (8 mm diameter)
Switch Type: Manual rotary or removable key-type isolator
Mounting Style: Surface or panel mount (rear terminal connection)
Dimensions (Approximate): 68 mm × 68 mm × 75 mm (varies slightly by brand)
Color: Red handle with black base (standard rally color scheme)
Protection Rating: IP55 – IP65 (dust- and splash-resistant, depending on model)
Weight: 150 – 250 g (approximate)
Included Accessories: Mounting screws, nuts, washers, terminal caps (varies by kit)
Applications: Cars, trucks, motorcycles, boats, RVs, racing and off-road vehicles

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Description

The A DC 32V 100A Battery Power Cut Off Switch is a heavy-duty master switch, also known as an isolator or disconnect switch, engineered to safely and reliably manage the electrical power from a battery bank. Constructed from durable materials, often including robust ABS plastic and highly conductive copper terminals, this switch is rated for a continuous current of 100 Amps at a maximum direct current (DC) voltage of 50 Volts, though it is frequently compatible with common 12V and 24V vehicle systems. Its primary function is to provide an easy, secure method to interrupt the main electrical circuit.

This essential component is widely utilized in a variety of vehicles and equipment, including Cars, Trucks, RVs, Marine Boats, and Camper Trailers, where it serves several critical purposes. Firstly, it acts as a safeguard during maintenance, allowing technicians to completely shut off power to prevent accidental short circuits or electrical shock. Secondly, it is a key component in preventing battery drain; by disconnecting the battery during periods of storage, it eliminates the “parasitic loads” that can otherwise slowly deplete the battery’s charge. Finally, many models feature a rotary knob or removable key for simple operation, which doubles as an anti-theft measure by preventing unauthorized use of the vehicle or equipment. Its rugged, often waterproof (IP-rated) construction ensures reliable, long-lasting performance even in demanding outdoor or marine environments.

Main Functions:

- Disconnects the battery to prevent discharge or leakage
- Acts as an emergency power cut-off switch
- Prevents short circuits and electrical fires
- Can serve as an anti-theft device
- Simplifies maintenance by isolating electrical systems