Contact Platform Support
Help Center
Home > Electrical & Electronics > Power Supply & Distribution > Switchgear > Heavy-Duty Battery Disconnect Switch for Marine Applications, 12-48V DC, Corrosion-Resistant
Heavy-Duty Battery Disconnect Switch for Marine Applications, 12-48V DC, Corrosion-Resistant
Product Spotlights
Engineered for harsh marine environments, this heavy-duty battery disconnect switch offers reliable 12-48V DC circuit isolation with superior corrosion resistance. Its robust construction ensures high-current handling for engine starting and critical systems, enhancing onboard safety and preventing battery drain. Flexible mounting and durable design provide a vital safety component for boat builders and fleet operators worldwide.
US$ 5
≥10 Units
Key Specifications
Get Latest Price
Rated Voltage:
12-48V DC
Current Rating:
Available upon request (e.g., 100A, 200A, 300A)
Construction Material:
High-grade, corrosion-resistant alloy housing
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Related Products
-
12-48V DC Battery Kill Switch With Universal Mounting Bracket and 1/2" Stud TerminalsUS$ 5MOQ: 10 Units -
12-48V Marine Battery Switch With Extended 2-Year Warranty and Mill Test ReportUS$ 5MOQ: 10 Units
-
Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty RatedUS$ 5MOQ: 10 Units
-
Marine Battery Disconnect Switch for Sailboats and Powerboats, 12-48V OperationUS$ 5MOQ: 10 Units
-
Marine Battery Master Cut-Off Switch for 12V to 48V Systems, IP67 WaterproofUS$ 5MOQ: 10 Units
Rated Voltage
12-48V DC
Current Rating
Available upon request (e.g., 100A, 200A, 300A)
Construction Material
High-grade, corrosion-resistant alloy housing
Terminal Type
Heavy-duty stud terminals (e.g., M8, M10)
Mounting Type
Panel mount or direct battery post mount
Actuation Method
Manual rotary or lever action
Contact Material
Silver-plated copper for high conductivity
Ingress Protection (IP) Rating
IP67 or higher (optional)
Application
Marine vessels, boats, yachts, workboats
Compliance
Designed to meet relevant marine electrical standards
As a leading manufacturer of specialized electrical components, Jinhua Dika Electrical Equipment Co., Ltd. leverages its expertise to deliver reliable power management solutions for demanding environments. Our Heavy-Duty Battery Disconnect Switch for Marine Applications is engineered to provide absolute control and safety for your vessel's electrical system. Designed to withstand the harsh, corrosive conditions of marine use, this switch ensures you can securely isolate your battery bank, protecting critical equipment and enhancing onboard safety during maintenance or emergencies.
This robust disconnect switch is a cornerstone of a reliable marine electrical setup. Its primary function is to provide a physical break in the circuit between the battery and the distribution system. This is not just a convenience feature; it is a critical safety device that prevents electrical fires, protects against short circuits during servicing, and eliminates parasitic drain when the vessel is not in use. For boat builders, repair yards, and fleet operators, integrating this switch means adhering to best practices in marine electrical safety.
Core Features and Technical Advantages:
- Superior Corrosion Resistance: The housing and internal components are constructed from specially selected alloys and treated with marine-grade finishes. This provides exceptional resistance to saltwater spray, humidity, and UV exposure, ensuring long-term reliability and preventing switch failure due to corrosion.
- Heavy-Duty Electrical Performance: Built to handle high current loads typical of marine applications (e.g., engine starting, bow thrusters, winches). The silver-plated copper contacts minimize voltage drop and power loss, even under continuous high-load conditions.
- Rugged Mechanical Design: The switch mechanism is designed for positive, unmistakable operation—either ON or OFF. It features a robust actuation method (rotary or lever) that can be operated easily, even with gloved hands, and is built to endure vibration and shock encountered at sea.
- Versatile Mounting Options: Available in configurations for easy panel mounting near the helm or direct mounting on the battery posts, offering flexibility for different boat layouts and wiring schemes.
- Enhanced Safety: Provides a visible and physical means of disconnecting all power, which is often required by marine surveyors and insurance companies. It helps prevent accidental electrical engagement during work on the boat's systems.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Operating Voltage Range | 12V DC to 48V DC |
| Continuous Current Rating | Common ratings include 100A, 150A, 200A, 300A (Customizable) |
| Insulation Resistance | >100 MΩ (typical) |
| Contact Resistance | <0.5 mΩ |
| Mechanical Life | >10,000 cycles |
| Terminal Stud Size | M8, M10, or 3/8" (Optional) |
| Operating Temperature | -40°C to +85°C |
Benefits for Your Marine Business:
- Increased Vessel Uptime: Reliable power isolation reduces the risk of electrical system failures, minimizing unscheduled repairs and downtime.
- Cost Savings: Prevents deep-cycle battery drain and protects expensive electronics (radars, chart plotters, autopilots) from potential voltage spikes or faults.
- Compliance & Insurance: Installing a certified battery disconnect switch can help meet safety standards and may favorably influence marine insurance terms.
- Peace of Mind: Offers skippers and crew a simple, foolproof method to secure the electrical system, whether for winter lay-up or during onboard repairs.
Frequently Asked Questions (FAQ):
-
Q: What is the main purpose of this marine battery disconnect switch?
A: Its primary purpose is to provide a total physical disconnection of the battery from the boat's electrical system. This is crucial for safety during maintenance, to prevent fire hazards, and to eliminate parasitic battery drain when the boat is stored. -
Q: Can this switch handle the high current required to start a large marine diesel engine?
A: Yes, it is specifically designed as a heavy-duty switch. We offer models with high continuous and surge current ratings (e.g., 300A or more) suitable for cranking large engines. Please specify your engine's starting current requirements when inquiring. -
Q: How does the corrosion resistance hold up in saltwater environments?
A: The switch utilizes marine-grade materials such as bronze, stainless steel, or specially coated alloys. Many models also feature a high IP rating (like IP67) for protection against water and dust ingress, making them suitable for installation in exposed or semi-exposed locations. -
Q: Is it possible to get a switch with a remote control or monitoring capability?
A: Our standard offering is a manual mechanical switch. However, we can provide guidance on integrating it with remote battery management systems or offer versions with an auxiliary contact for remote status indication upon request. -
Q: What is the difference between a rotary switch and a lever-action switch for this application?
A: Both are effective. Rotary switches often have a lower profile and may include a removable key for security. Lever-action switches provide a very positive, visible indication of status and can be easier to operate. The choice depends on panel space and user preference. -
Q: Do you provide the necessary cables and lugs for installation?
A: The switch is typically supplied as a standalone unit. Heavy-duty marine-grade battery cables and terminal lugs are recommended for installation and can be sourced separately or inquired about as part of a complete kit. -
Q: Are there specific mounting considerations for this switch?
A: It should be mounted in a readily accessible location, preferably close to the batteries but protected from direct water immersion. Ensure there is adequate space for cable bending radii and that the mounting surface is solid to handle the switch's torque during operation. -
Q: Can this switch be used for other applications, like RVs or industrial equipment?
A: Absolutely. While optimized for marine use, its heavy-duty, corrosion-resistant construction makes it suitable for any 12-48V DC application in harsh environments, including recreational vehicles, construction equipment, and renewable energy systems.
Backed by Jinhua Dika Electrical's robust manufacturing framework, which includes certifications like ISO9001 for quality management, this marine battery disconnect switch is produced with stringent process controls. Our products reach global markets, from North America and Europe to Southeast Asia and Oceania, supported by an annual export value reflecting strong international trust. We ship efficiently from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo. Choosing our switch means partnering with a dedicated manufacturer committed to delivering durability, safety, and performance for your marine applications. Contact us today to discuss your specific requirements and enhance the safety profile of your vessels.
Send Inquiry to This Supplier
* Email
Want the best price?
Post an RFQ now!
1Yr
Business Type
Manufacturer
Annual Export Value
US$1 Million - US$1.5 Million
Total Employees
11 - 50 People
Product Certifications
HACCP, TL900, QS9000, SA8000, ISO9001, ISO9004, ISO17799, ISO9000, ISO14000, ISO10441, ISO16949, TS16969, ISO19011:2000, OHSAS18001, Others
You May Also Like
-
Battery Isolation Switch for Off-Road Vehicles and Work Boats, 12-48V Heavy-DutyUS$ 5MOQ: 10 Units
-
Heavy-Duty Battery Disconnect Switch, Compliant With Marine Standards, Includes Installation GuideUS$ 5MOQ: 10 Units
-
12-48V Heavy-Duty Marine Battery Disconnect Switch With 300A Continuous CurrentUS$ 5MOQ: 10 Units
-
500A Open Loop CT With 3.5mm Pin Terminal for Easy InstallationUS$ 11MOQ: 10 Units
-
Split Core Current Transformer 500A Class 0.5 AccuracyUS$ 11MOQ: 10 Units
-
Open Loop Current Transformer for LV Panel Retrofit ProjectsUS$ 11MOQ: 10 Units
-
500A CT Supplied With Installation Guide and Technical SupportUS$ 11MOQ: 10 Units
-
Low Voltage Current Transformer 500A/5A Output for MeteringUS$ 11MOQ: 10 Units
-
Acrel Current Transformer With 1-Year Performance WarrantyUS$ 11MOQ: 10 Units
-
Current Sensor for Solar Inverter and EV Charger MonitoringUS$ 11MOQ: 10 Units
