Marine Battery Switch – Rated 100A Continuous at 12V | 4Boats
MD1133
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Marine Battery Switch 100A
Premium Quality Square Marine Isolator
This high-performance square marine battery switch is engineered to provide reliable isolation for electrical systems on both professional and recreational craft. With a continuous rating of 100 Amps, it is the ideal choice for managing power in small to mid-sized vessels, ensuring that your battery charge is preserved when the system is not in use.
Key Features
- ✔ Compact square form factor for tight spaces
- ✔ Ignition protected (Safe for engine rooms)
- ✔ Clear ON/OFF tactile positions
- ✔ Removable key/knob for enhanced security
Technical Specs
| Continuous Rating | 100 Amps DC |
| Peak/Intermittent | 300 Amps |
| Max Voltage | 32V DC |
| Terminal Studs | M10 (3/8") Copper |
| Dimensions | 69mm x 69mm x 74mm |
Compatibility / Fitment Guide
| System Type | Application | Voltage Compatibility |
|---|---|---|
| Marine | Outboards, Speedboats, Fishing Boats | 12V / 24V DC |
| Leisure | RVs, Caravans, Campers | 12V / 24V DC |
| Electrical | Secondary Battery Banks, Winches | Up to 32V DC |
OEM Cross Reference
| Reference Brand | Part Number |
| SCI | A23-3 |
| Nuova Rade | 100/250A Model |
| Sea-Dog | 422732-1 (Mini Equiv) |
| Generic / Durite | 69mm Square Series |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment standards for fitment and performance in marine environments.
How do I know if it is compatible?
We recommend checking your current mounting space. This unit uses a standard 69mm x 69mm square base. If your system draws more than 100A continuous, we recommend our 300A heavy-duty model.
Can this be mounted through a panel?
Yes, this switch is designed for versatile mounting. It can be surface mounted or panel mounted by drilling a standard round hole and securing the square faceplate to the surface.
Note: Distributed by 4boats.co.uk. Please verify your original mounting dimensions and current requirements before purchasing.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
