Battery Master Switch INNE PRK0181 — rotary/lever 100A battery isolator

INNE PRK0181 is a 100A battery master switch designed to provide a reliable mechanical method for disconnecting and isolating batteries in vehicles, boats, recreational vehicles and light industrial equipment. The rotary/lever style control allows clear visual and tactile confirmation of on/off position, enabling safe power cutoff during maintenance, storage, transport or to reduce parasitic drain. The switch is built for straightforward installation into battery circuits where a compact, dependable 100A cutoff is required.

Advantages

The INNE 100A battery isolator offers a simple, durable construction with a rotary/lever actuator that is easy to operate even when wearing gloves. It provides a clear open/closed position for quick verification of battery connection state and reduces the risk of accidental power flow. The mechanical design requires no external power to operate and is suitable for environments with vibration and moderate moisture exposure when installed according to guidelines.

Suitable for

• Automotive battery systems for cars, trucks and vans
• Marine battery installations on small boats and yachts
• Recreational vehicles (RVs) and camper electrical systems
• Light industrial equipment and stationary battery backup systems

Key specifications

• Nominal current rating: 100 A continuous
• Actuator type: rotary with lever / manual switch
• Contact arrangement: single-pole single-throw (SPST) mechanical isolation
• Mounting: panel-mounted with fasteners for secure installation
• Electrical connection: heavy-duty terminal studs suitable for battery cable lugs
• Construction materials: corrosion-resistant conductive contacts and durable housing

How to use

Install the switch in the negative or positive battery lead as appropriate for the vehicle or equipment, following vehicle manufacturer and local electrical safety guidelines. Secure the switch to a rigid panel using the mounting provisions, and connect battery cables to the terminal studs with properly sized cable lugs tightened to the recommended torque. Operate the rotary/lever actuator to open (isolate) or close (connect) the battery circuit; the switch provides a direct mechanical cutoff without additional wiring. Verify correct operation after installation by observing the open/closed position and checking for expected circuit behavior.

Usage recommendations

Use the INNE 100A master switch to isolate batteries before performing electrical maintenance, during long-term storage, or when leaving a vehicle or vessel unattended. Ensure cable sizes, terminal torque and mounting location are suitable for a 100A continuous rating and protected from excessive moisture and contaminants. For circuits that carry higher inrush currents or require fused protection, install appropriate fuses or circuit breakers in line with the switch to protect wiring and components.