Excavator Battery Main Switch Cut Off Kill 12V 300A For Marine Boat Car Truck RV

Brand Name:TIANRUI
Certification:ROHS
Model Number:QB-047
Minimum Order Quantity:10
Delivery Time:5-7 Days
Payment Terms:D/P, T/T,Paypal, Visa, Mastercard
Contact Now

Add to Cart

Verified Supplier
Location: Dongguan Guangdong China
Address: Building C, Xinmeijia Science and Technology Park, Chashan
Supplier`s last login times: within 1 hours
Product Details Company Profile
Product Details

Excavator Battery Main Switch Master Isolator Cut Off Kill Switch 12V 300A for Marine Boat Car Truck RV

This product is suitable for passenger cars, trucks, tractors, professional racing cars, and now it has been applied to many ordinary RVs abroad. At present, this kind of modification combination switch is used in many coastal cities in China, and the installation is simple.

Specification of Excavator Battery Main Switch Master Isolator Cut Off Kill Switch 12V 300A

* Operation: DC 12-60V systems, On/Off 2 position
* Continue Current: 300A(12V)
* Crank Current: 1000A(12V)
* 2 brass terminals: 5/16"
* 2 mounting holes: 3/16”
* Round base diameter: 2.35''
* The post that holds the key stands up 1 1/4” from the base, and it’s diameter is 7/8”
* Only can be mounted on negative post.


Switch Type
Battery Switch
Continuous Rating300Amps DC
Intermittent Rating
600Amps DC

Cranking Rating

1200Amps DC
Voltage Rating12V-60V DC
Operation TypeOn-Off
Electrical Life10000 Times
Contact Resistance
50m ohm Max
Insulation Resistance
DC 1500V 100M ohm Min
Dielectric Strength
AC 1500V 1 minute
Operation Temperature
-30°C~+60*C



Features of Excavator Battery Main Switch Master Isolator Cut Off Kill Switch 12V 300A

* Disconnects the battery safely, to eliminate any power draw from the battery when vehicle or boat is not in use Compact size, sleek modern appearance, sturdy and durable


* Contour link system, allowing it to be a standalone unit, or linked together with other similar switches Rotary dial has a spring-loaded keeper to lock the selected position


* Instructions included: one Battery Switch


Function of Excavator Battery Main Switch Master Isolator Cut Off Kill Switch 12V 300A

Prevent leakage, protect the power supply, disconnect the battery safely.


Application of Excavator Battery Main Switch Master Isolator Cut Off Kill Switch 12V 300A

Designed for bilge pump applied in RV, boat, yacht etc.
Can be used as interior and exterior of the increase in all kinds of electrical devices on / off key (eg: Strobe, chassis lights,
fog lights).

Tips for Buying and Using a Battery Disconnect Switch


1. Check the amperage rating before buying to know if the switch is suitable for the battery of your vehicle, boat, or RV. Different modes of transportation have different alternators that output varying power levels.


2. Always remember to turn off your vehicle before disconnecting the battery. This will prolong the lifespan of the battery, the electrical components, and the disconnect switch.
3. Avoid random power cuts or you risk damaging the locking navigation system and other anti-theft features.
4. When replacing the battery, disconnect the switch—starting with the negative terminal.
5. If you are not sure about installation, consult a professional to avoid system failure.









Contact Details:

Andy Wu

Email: andy@tianrui-fuse.com.cn

MP/Whatsapp: +86 13532772961

Wechat: HFeng0805

Skype: andywutechrich

QQ: 969828363



China Excavator Battery Main Switch Cut Off Kill 12V 300A For Marine Boat Car Truck RV supplier

Excavator Battery Main Switch Cut Off Kill 12V 300A For Marine Boat Car Truck RV

Inquiry Cart 0