Blue Sea Red Battery Cut-Off Switch Single Battery Operation K4-16-125

SKU: K4-16-125

Free Shipping | Contiguous USA | No Purchase Minimums

WARNING: This product can expose you to certain chemicals, which are known to the State of California to cause cancer, birth defects or other reproductive harm.
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Blue Sea M-Series Red On-Off Battery Switch With Knob, Single Battery Operation.

Switches A Single Battery To A Single Load Group
Ignition Protected—Safe For Installation Aboard Gasoline Powered Boats
Case Design Allows Surface Or Rear Panel Mounting

Switch Type - Single Circuit ON-OFF
Color - Red
Switch Positions - 2
Battery Combine - NO
Alternator Field Disconnect - NO
Maximum Voltage - 48V DC
Continuous Rating - 300 Amps
Intermittent Rating - 500 Amps 5 Minutes
Cranking Rating 30 Sec - 900Amps
Battery Inputs - 1
Cable Size To Meet Ratings - 4/0Awg
Mounting Holes - Accept #10 Screw
Terminal Stud Size - 3/8" Ring Terminals
Weight - 0.65lb (0.29 kg)

Sold As Each

16-125 K-Four Switches


Contiguous USA (Excludes Alaska, Hawaii & other US Territories).
No minimum purchase required.
All orders that select free shipping at checkout are routed the least expensive method to you.
If you require a specific carrier due to your shipping address, you must select a paid shipping option at checkout.
For all other US Territories, Alaska, Hawaii & other countries shipping will be calculated at checkout for you.
We do not ship to PO Boxes.
We ship worldwide via UPS & USPS from Southern California.


We happily accept returns or exchanges as long as the merchandise is in NEW condition (never been installed/mounted), complete with all original packaging, accompanied by a Return Authorization and back in our warehouse within 30 days of receiving.

  • We are unable to accept returns on electrical parts, floor pans, windshields, transmissions & engines.
  • All orders are subject to a 20% restocking fee
  • Returns sent back without a pre-approved RA# will be refused.

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