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Home: SLE Solar Catalog: Recreational Vehicle: Electronics:
Intellitec Bi-Directional Relay Cat. No. 00-00362-100 Weight 1 lbs | $125.00 |
Intellitec s Bi-Directional
Isolator Relay DeIay offers a new approach
to charging batteries in an RV application. Unlike prior systems that
only allowed charging the RV battery from the engine s alternator, the
Bi-Directional Isolator Relay Delay charges both batteries when either
one is being charged. When the coach is being driven, both batteries
will be charged from the engine s alternator. When the coach is plugged
into shore power, both batteries will be charged from the converter. If
neither battery is being charged, the batteries are fully isolated. The
controller also senses heavy loads on either battery to prevent the
wrong battery from being inadvertently discharged.
It operates by sensing the voltage on both batteries. When either of
these voltages exceeds 1 3.3 volts for approximately 1 2 seconds, which
happens when either battery is being charged, the control will close
the isolator solenoid, connecting the two batteries together, charging
them both. (Normal charging voltages are from approximately 1 3.8 to
14.4 volts.)
After the solenoid has been closed, the system continues to sense the
voltage. If the ignition switch is off and the battery voltage drops
below 1 2.8 volts for approximately 5 seconds, which might occur when
the converter is heavily loaded, the solenoid is opened to prevent the
chassis battery from being discharged by the coach loads. When the
voltage goes above 1 3.3 volts again for approximately 5 seconds, the
solenoid closes again.
If the ignition switch is on, the control allows the voltage to drop
below 12.0 volts for approximately 5 seconds, before the solenoid is
opened to insure the alternator s full output is available for
important chassis functions. When the voltage goes above 1 3.3 volts
again for approximately 5 seconds, the solenoid will close.
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