Cole Hersee 880062BP SR Series Master Battery Disconnect Switch – 300A, IP67/IP69K
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300A Master Disconnect — Certified for Marine Battery Box Installation
The Cole Hersee 880062BP SR Series Master Disconnect Switch is a heavy-duty battery isolation switch built for boats, RVs, and commercial vehicles that demand serious protection. At 300A continuous and rated to 32V, it handles full electrical system loads without hesitation — and when you’re done for the day, a single turn of the knob isolates the battery completely, eliminating parasitic drain during storage.
Dual ingress protection ratings (IP67 and IP69K) mean this switch survives full submersion and high-pressure wash-down — a meaningful spec for bilge-adjacent or below-deck installations. It’s also ignition protected to SAE J1171 and ISO 8846, making it certified safe for installation directly in a battery box where fuel vapors may be present. The compact 3" depth (knob face to stud end) makes it one of the more space-efficient options in its class for tight panel or battery compartment installs.
Key Features
- SPST master disconnect — fully isolates battery from all circuits
- 300A continuous current rating at 32V DC
- IP67 and IP69K rated — submersion and high-pressure wash-down resistant
- Ignition protected to SAE J1171 and ISO 8846 — safe for battery box installation
- Black UV-resistant plastic housing — will not corrode in salt spray or road splash
- Stainless steel hardware and tin-plated copper contact
- Only 3" deep (knob front to stud end) — fits tight spaces behind panels
Compatible Applications
- Marine battery isolation on powerboats, sailboats, and pontoons
- RV and motorhome battery disconnect
- Commercial and work vehicle battery shutoff
- Battery box installations requiring ignition-protected switches
- Below-deck and bilge-adjacent electrical panels
- Seasonal storage battery isolation to prevent parasitic drain
- 12V and 24V DC systems up to 32V
Parts Desk Insights
Best use case: The 880062BP is the right switch when certification matters — specifically for battery box installations where ignition protection is required by ABYC or insurance standards, or for any below-deck location that sees regular wash-down. The IP69K rating is uncommon at this price point and makes it a strong choice for working boats and commercial vessels where the electrical compartment gets hosed out regularly. The 3" depth is also a practical advantage in cramped battery compartments where deeper switches simply won’t fit.
Related disconnect switches: For a keyed battery disconnect with theft-deterrent lockout, see the Moeller Battery Disconnect Switch with Key. For a push-pull style On/Off switch for lighter accessory circuits, the Cole Hersee M606BP Push-Pull Switch is a compact option.
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.