300A Battery Switch 3 Position Dual Circuit Isolator for Marine Boats, RVs
The 300A Battery Switch is a robust 3-position, 3-stud dual-circuit isolator designed for marine boats, RVs, and other large vehicles. It cleanly switches a single battery to a single load group, giving you precise control over your power distribution whether you’re docked, cruising, or on the road.
Built for demanding environments, it features an ABS plastic shell with a red copper plated silver inner core to maximize conductivity and reliability. The case supports surface, front panel, or rear panel mounting, and it provides safe ignition protection for installations aboard gasoline-powered boats. With an IP66 waterproof rating, this switch resists water and dust, keeping essential systems online in challenging conditions.
Three gear positions (OFF, 1, 2) and three M10 posts enable clear circuit identification and easy isolation of battery banks. The unit is designed to continuously handle up to 300A, with short-term surges of 500A for 5 minutes and 900A for 30 seconds, making it ideal for ships, yachts, RVs, large trucks, and modified vehicles where dependable power control is critical. The rotary actuator and OFF-1-2 labeling offer intuitive operation and quick response in emergencies or routine maintenance.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Benefits & Tips
- Effortlessly protect internal circuits: use OFF to completely isolate the battery when storing, performing maintenance, or in emergencies to prevent battery drain and electrical fires.
- Two-load optimization: assign circuit 1 and circuit 2 to separate systems (e.g., essential navigation lights vs. auxiliary systems) for safer, more controlled power management.
- Simple, durable installation: panel mounting supports flexible placement on boats and RVs, with reliable contact through the 3xM10 posts for steady performance in rough conditions.
Product specifications
- Item Type: Battery Switch
- Brand Name: EBTOOLS
- Material: ABS plastic shell; red copper plated silver inner core
- Continuous Current: 300A
- Short-Term Current Ratings: 500A for 5 minutes, 900A for 30 seconds
- Line Post: 3xM10
- Gear Position: 3 positions (OFF-1-2)
- Contact Type: Normally Closed
- Circuit Type: 2-way
- Mounting Type: Panel Mount
- Actuator Type: Rotary
- Waterproof Rating: IP66
- Application: Ships, yachts, RVs, large trucks, modified vehicles
- Origin: Mainland China
Package includes:
- 1 x Battery Switch
Warnings / Reminders
- Adhere to the specified current ratings: 300A continuous, with the stated short-term surges (500A/5 minutes, 900A/30 seconds).
- Install according to mounting options (surface, front panel, or rear panel) to maintain IP66 protection and reliability in wet environments.
- Ensure proper wiring to OFF-1-2 terminals for correct circuit identification and safe operation.
Provided for EU customers: All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Providing reliable service since 2002 at intercyprus.com.