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WirthCo 20138 Top Post Battery Disconnect Switch

Manufacturer

WirthCo

<h3>About WirthCo Engineering</h3><p><strong>WirthCo Engineering</strong> is a Minneapolis, Minnesota-based manufacturer with more than four decades of experience designing practical products that make life easier and safer — whether at home, in the workplace, on the road, at the campground, or out on the water. An innovative manufacturer holding over 20 patents (a number that continues to grow), WirthCo has been delivering solutions since entering its fourth decade of operation. That commitment to innovation is backed by a philosophy of integrity and service that runs through everything the company produces.</p><h3>Battery Doctor® – The Core of WirthCo's Lineup</h3><p>WirthCo's flagship brand, <strong>Battery Doctor®</strong>, is the heart of its product catalog. The Battery Doctor line includes all of the battery components needed to design and build a custom battery package, supporting industrial, automotive, marine, and RV-grade applications. From <a href="/1894-wirthco-battery-chargers-200141">battery chargers</a> and maintainers to disconnect switches, monitors, and solar products, the lineup covers the full spectrum of power management needs.</p><p>To ensure the reliability, safety, efficiency, and energy of battery systems, Battery Doctor's selection of components offers solutions to protect against overcurrent, theft, and battery drain, as well as products to optimize charging for various battery packages. Whether you need a smart charger for a stored vehicle, a <a href="/1894-wirthco-vehicle-battery-2476">vehicle battery</a> management solution, or fuses and circuit protection, WirthCo has you covered.</p><p>With ISO-compliant offerings, WirthCo manufactures battery accessories and components for both industrial and consumer markets, delivering a wide range of solutions that meet exacting specifications. This commitment to quality control sets Battery Doctor products apart in a crowded aftermarket landscape.</p><h3>Battery Chargers for Every Application</h3><p>WirthCo offers a broad range of smart battery chargers and maintainers, including multi-stage charging systems engineered to safely maintain batteries over long storage periods without risk of overcharge. Their CEC-certified smart chargers support 12V and 24V systems with five-stage charging technology, featuring digital LED displays and reverse polarity protection with automatic switching technology that prevents overcharging.</p><h3>Funnel King® – Fluid Handling Made Simple</h3><p>Beyond electrical products, WirthCo's <strong>Funnel King®</strong> brand brings the same practical engineering to fluid management. Designed to support fluid-based applications across various industries, Funnel King® heavy-duty funnels and accessories streamline fluid transfers without the risk of spilling, including funnels, measuring containers, drain pans, and more. For anyone who regularly works under the hood or manages equipment fluids, WirthCo's funnels are a go-to workshop staple.</p><h3>Built for the Real World</h3><p>Based in Minneapolis, Minnesota, WirthCo has been designing and manufacturing innovative, cost-effective products for over 40 years. Focused on high-quality, practical products with everyday uses, WirthCo proudly serves some of the world's largest, well-known distributors and retailers. From the garage to the job site to the marina, WirthCo Engineering delivers dependable solutions built on decades of real-world experience.</p>

Part Number

20138
09/10/2036 4:15 PM
Sale Price

$34.42

1 left at this price

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Product Details

The WirthCo 20138 is a vertically operated knife-blade battery disconnect switch designed to protect your vehicle and equipment against electrical system fires, tampering, theft, and battery drain. Perfect for mounting on a battery post to disconnect the ground and battery, this switch provides a simple and effective way to eliminate parasitic power draw when vehicles are in storage or not in use.

Key Features:

  • 250 amps continuous and 750 amps surge capacity at 12 volts
  • Features a 5/8" diameter post for receiving standard battery cable clamps
  • Conducting capacity equivalent to a #1 AWG battery cable
  • Made in the USA
  • Vertical operation makes it easy to reach and operate
  • Suitable for installation on negative or positive battery post and all voltage systems

Great for cars, RV, ATV, UTV, trucks, boats, campers, and other power disconnect purposes. Also suitable for medium duty trucks and farm machinery. This patented knife-blade design provides a fast and reliable way to extend battery life by preventing unwanted electrical drain during storage or maintenance periods.

It was easy to find what you want and the price is good also and I will be ordering from you all again thank you. Jesse

Very quick to order. Called to confirm availability. Will see how we do on delivery, especially the direct from manufacturer parts.

Reasonable price. I like that I can use my Amazon account. Very convenient!

Easy to use website, great communication, and product was exactly as described.

I have been successful placing my order today.

Great price, free shipping and offered Amazon payments!!

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