Alternator Controller/Regulator, 28v (Homebuilt)_1

The LS-1A Controller offers the same features as the LR3 - linear voltage regulation, integral over-voltage protection, and low-voltage monitoring and warning.  It has been specially designed, however, to permit the use of our wound-field alternators (L-40, L-60, SD-20) in a 28v electrical system.

Like the LR3, the LS-1A weighs approximately 9 ounces, may be mounted on the cockpit side of the firewall, and is available with an optional battery temperature sensor for colder climates.

For Experimental Aircraft ONLY

Note:  NOT for use with the B&C Permanent Magnet type alternators (SD-8, SK-10, 200G, BC433-H).

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Installation Advisory:

Select a location for mounting that will protect unit from heat, vibration, and water. The pilot side of the firewall, or inside the cabin near the instrument panel, is recommended.

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LS-1A Wiring Diagram

LS-1A Installation Instructions