Moeller Battery Disconnect Switch with Key
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Cut Power. Protect Your Boat.
The Moeller Battery Disconnect Switch with Key gives you a reliable, single-point shutoff for your vessel's electrical system. Whether you're securing your boat for the season, preventing parasitic battery drain at the dock, or adding a layer of theft deterrence, this switch installs cleanly on any bulkhead and handles serious amperage without complaint.
The key-operated design means only authorized users can restore power — a simple but effective safeguard for unattended vessels. The environment-proof boot on both the key and cover shields the internals from moisture, salt spray, and UV exposure, keeping the switch functioning season after season.
Key Features
- 110A continuous duty rating — handles full electrical loads without overheating
- 500A surge capacity at 12V for 10 seconds — withstands engine cranking loads
- Key-operated on/off control — prevents unauthorized use and battery discharge
- Environment-proof boot on key and cover — resists corrosion in marine environments
- Bulkhead-mount design — installs cleanly on panels, consoles, or engine compartments
- Compact footprint — fits standard marine switch cutouts
Compatible Applications
- Powerboats and runabouts
- Bass boats and fishing boats
- Pontoon boats
- Ski and wakeboard boats
- Trailered vessels stored seasonally
- 12V DC marine electrical systems
Parts Desk Insights
Best use case: This switch is the go-to solution for boaters who want a clean, permanent battery isolation point — ideal for seasonal storage (eliminates the need to disconnect cables manually), marina slip security, and vessels with multiple electronics that draw standby power. It's particularly well-suited for installations where a keyed lockout is preferred over a simple lever-style disconnect.
Installation note: Designed for bulkhead mounting. Ensure your wiring gauge matches the 110A continuous rating. For boats with dual-battery setups, pair with a battery selector switch for full system control.
Looking for battery storage solutions? Check out the Moeller Marine Battery Tray with Strap – Series 27/30/31 or the Moeller Marine Battery Tray with Strap – Group 24.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.