Marine Battery Switch 175A Continuous (12V) / 300A Intermittent
MD1132
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- 30 Day Return Policy
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Marine Battery Selector Switch - 300A
Heavy-Duty Dual Battery Isolator & Change-Over Control
This heavy-duty marine-grade battery switch works as both an isolator and a change-over switch in dual battery systems. It can switch either battery or both at the same time, so you can keep banks separate or link them when needed.
Key Features
- ✔ Switches battery 1, battery 2 or both
- ✔ Bakelite base and knob, non-corrosive marine-grade metal
- ✔ Integral push-lock knob
- ✔ Suitable for surface mounting
Technical Specs
| SKU | MD1132 |
| Continuous Rating | 175A @ 12V |
| Intermittent Rating | 300A |
| Diameter | 133.3 mm |
| Height | 133.3 mm |
| Colour | Black with red highlights |
Compatibility / Fitment Guide
| System Type | Application | Notes |
|---|---|---|
| Marine / Boat | Dual Battery Banks | Manage Starter & House Batteries |
| Motorhome / RV | Dual Battery Systems | Rated 175A continuous at 12V |
OEM Cross Reference
| 4Boats SKU | MD1132 |
| Type | Dual battery selector / isolator switch |
Questions & Answers
Is this a genuine original part?
This is a quality aftermarket battery switch for general marine use.
How do I know if it is compatible?
Check that your system's load is within 175A continuous (12V) / 300A intermittent and that you have space for the 133.3mm diameter body on a flat surface.
Can I use this for both starting and house batteries?
Yes, it can switch either battery or both at the same time, so you can isolate one bank or combine them when needed.
Note: Please verify your mounting clearance and system requirements against the specifications above before purchasing.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
