Relay - Intellitec Battery Disconnect BD0 Installation Manual

Battery Disconnect
or boat. With a touch of a remote switch, the batteries will be completely disconnected, preventing
unwanted drain when the RV or boat are put into storage.
The heart of the system is a unique latching relay developed specifically for this purpose. While this
relay is capable of carrying heavy currents, it requires
power during activation. The relay is sealed against the environments and is designed to withstand
the shock and vibration experienced in the most severe RV or boat applications.
THE RELAY - How It Works
The Battery Disconnect Relay is a mechanically latching switch that operates by the momentary application
of battery voltage to the coil terminals in one direction for latching (closed) or the other direction for
unlatching (open).
To close the relay, +12 volts is applied to the "I" terminal and ground to the "S" terminal of the relay. When
this is done, the plunger is pulled into the coil and the contacts are connected. While this happens, the rod
magnet suspended above the plunger is attracted (opposite poles attract) to the top of the plunger by the
magnetic field. See FIGURE 1
When the voltage is removed from the coil, the plunger gets pushed upward by the return spring, but
cannot move because the rod magnet is in the way. See FIGURE 2
Warning: The Battery Disconnect system connects directly to the vehicle's positive battery terminal.
Inadvertent shorts across the battery or to ground, may cause severe damage and injury. Use
extreme caution when working with these wires. Always wear safety glasses when working with the
battery connections.
Intellitec
www.intellitec.com
BATTERY DISCONNECT
SERVICE MANUAL
provides a simple and safe means of remotely disconnecting batteries of an RV
NO power to stay open or closed. It only draws
1 P/N 53-00066-100 Rev. B 030905
131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408