Skip to content
Free Shipping on Selected RV & Marine Accessories — Availability Shown at Checkout
Shipping options shown at checkout

Boat & RV Battery Master Disconnect Switch - Main Power Isolation Options

Original price $47.90 - Original price $57.90
Original price
$47.90
$47.90 - $57.90
Current price $47.90
Availability:
100 in stock, ready to be shipped
Availability:
100 in stock, ready to be shipped

Shipping to United Arab Emirates · USD

Shipping options and final rates are shown at checkout.

See shipping information

30-Day Return Policy

You have 30 days after receiving your item to request a return. Return shipping costs are the customer’s responsibility unless the item is damaged, defective, or incorrect.

A dead battery, an electrical fire, or a vehicle that won’t shut down completely — these are the risks you take without a proper battery master switch. This 600A heavy-duty battery disconnect switch gives you instant, total control over your vehicle’s electrical system with a single turn of the knob. Cut all power in an emergency, prevent parasitic drain when parked, or isolate the battery for safe maintenance — all without touching a single wire. Rated at 600A continuous and 2500A surge, it handles the heaviest marine, RV, truck, and yacht electrical loads without hesitation. The detachable design and tin-plated copper terminals ensure reliable connections and easy installation every time.

Product details

Key Features

  • 600A Continuous / 2500A Surge Rating — Handles the heaviest electrical loads on boats, RVs, trucks, and yachts without overheating
  • Wide Voltage Range: 12V–48V — Compatible with standard 12V/24V systems and high-voltage 48V setups
  • Instant Total Power Disconnect — Single-turn knob cuts all power immediately; essential for emergencies, fire prevention, and theft deterrence
  • Detachable Design — Knob separates from base for added security; remove the knob to prevent unauthorized use
  • Tin-Plated Copper Terminals (12mm) — Premium conductivity; resists oxidation and corrosion for long-term reliability
  • 2-Position & 4-Position Dual Battery Options — Simple ON/OFF or dual battery selector (80% charge / dual bank) to match your setup
  • Compact & Panel-Ready — 102 x 102 x 90mm base; fits standard marine and RV electrical panels

Applications

  • Marine boats and yachts — main power disconnect and bilge pump isolation
  • RVs, motorhomes, and camper vans — battery isolation and parasitic drain prevention
  • Trucks, buses, and heavy vehicles — fleet battery management
  • Solar and off-grid systems — battery bank disconnect
  • Race cars and performance vehicles — safety kill switch

Available Models

  • 2-Position (ON/OFF) — SKU: BatteryMasterSwitch-2Position-600A | Simple main disconnect
  • 4-Position Dual Battery — SKU: BatteryMasterSwitch-4Position-DualBank | 80% charge mode + dual bank selector
Specifications & installation

Specifications

  • Rated Current: 600A continuous
  • Surge Current: 2500A instantaneous
  • Voltage: 12V – 48V DC
  • Terminal Stud: 12mm tin-plated copper
  • Base Dimensions: 102 x 102 x 90mm (H)
  • Knob Height: 90mm total | Knob diameter: 38mm
  • Internal Dimensions: 90 x 85mm
  • Housing: ABS engineering plastic, anti-aging
  • Design: Detachable knob for security
  • Applications: Marine, RV, truck, bus, yacht, solar
  • Origin: China
Shipping Information

Availability and rates shown at checkout.

Here to Help

Get in touch with us Monday–Friday

RV & Marine Parts

Parts for maintenance, replacement and upgrades.

AFTER-SALES SUPPORT

Professional service you can rely on