Marine Battery Switch – Rated to 100A - 4Boats
Marine Battery Switch – Rated to 100A - 4Boats
Marine Battery Switch – Rated 100A Continuous at 12V | 4Boats - Technical specification image 2
Marine Battery Switch – Rated 100A Continuous at 12V | 4Boats - Technical specification image 3
Marine Battery Switch – Rated 100A Continuous at 12V | 4Boats - Technical specification image 4

Marine Battery Switch 100A Square Isolator 12V 24V Boat Kill Disconnect Switch

MD1133

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • In stock, ready to ship
  • Backordered, shipping soon
Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.

Regular price£26.99
/
Tax included.

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.

RELIABILITY: Constructed from UV-stable, non-corrosive marine grade materials and reinforced nylon to withstand the harshest saltwater environments.

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.

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