KALS BH-USA A-Drive Limit Switch

$ 346.27
SKU: 93171
UPC: 091037931719


Free Shipping

Free Shipping

BH-USA offers free shipping for retail customers on select items. Products eligible for free shipping will be shipped via UPS Ground. We offer expedited services for those individuals that require a more time-sensitive delivery time. If you add any items that are not free shipping, the cart will calculate and display a shipping price based on ONLY the items that are not free shipping. Whenever free shipping is available, it will appear above the "Add to Cart" button on the product page.


KALS BH-USA A-Drive Limit Switch

The KALS BH-USA A-Drive Limit Switch is a top-notch component for boat lift control systems. It works with all sizes of BH-USA A-Drive direct drive boat lift hoists. Specifically designed for models ending in “A” for auto stop features.

Key Features:

  • Factory-wired auto stop for precise control.
  • Compatible with Gem Remote Systems.
  • Requires A-Drive direct-drive hoist with shaft made after August 2015.
  • Comes with an 18-gauge, 3-wire harness for durability.
  • FFC and ETL listed for safety and performance.


  • Easy installation by removing the dust cover and attaching the switch to the drive shaft.
  • Requires a limit switch-ready driveshaft made after August 2015.


  • 9 ft. 3 in. wire length for flexible wiring connections.
  • Wire size: 18 gauge.
  • Packaged in a 14 in. x 8 in. x 4 in. box, weighing approximately 3 lbs.


  • Gem Remote Systems, known for high-quality remote control systems.

For assistance, wiring, and troubleshooting, refer to online diagrams on the manufacturer’s Technical Guides page.

The limit switch requires that the A-Drive direct-drive hoist use a BH-USA direct-drive shaft made after August of 2015.

Only works for Gem Remote Systems.

Installation Instructions

Simply remove the dust cover on the front of the A-Drive direct-drive hoist to expose the end of the drive shaft that will have a tab that fits the limit switch. The limit switch uses the existing bolts to mount the special bracket. Limit switch-ready driveshaft is a must-have.

Auto-Stop Systems

Auto-stop systems allow you to raise or lower your lift to a specific position at the touch of a button. Requires the installation of one of four “limit switches”. The limit switch you need depends on the type of motor(s) that you are using on the boat lift. Without auto-stop capability, you will have to hold the button down to start and stop the boat lift movement.


Wire Length: 9 ft. 3 in.
Wire Size: 18 Gauge / 3 Wire
Box Size: 14 in. x 8 in.  x 4 in.
Product Weight: 3 lbs.
Manufacturer: Gem Remote Systems

Requires the A-Drive to be using a BH-USA Drive Shaft made AFTER August 2015.

Product Overview

  • Compatible with all BH-USA A-Drive direct-drive hoists
  • Works with Gem Remotes denoted with an "A" at the end of the product number
  • The limit switch allows for a designated place for the lift to stop at "top" or "bottom"
  • Online wiring guides available
  • Only works on Gem Remote Systems