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FEATURES
Individual
disconnect switches for the power supply and the battery
areprovided to isolate power sources.
Automatic or
battery only operation may be selected at a flick of a
switch, ideal for testing emergency power.
Three power status
LED's indicate availability of power sources as well as
power available to the load(s).
A 25 Ampere
rating.
Power supply
failure detection and automatic switchover.
AC line failure
detection and automatic switchover.
An optional meter
and switch to monitor either the power supply or the battery
voltage at all times.
PARTS LIST
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Quantity
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Schem. ID
|
Description
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2
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D1, 2
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1N4148
Diode, 75 PIV
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3
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R1, 2, 3
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6.8K Resistor, 1/8 Watt
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3
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LED1, 2, 3
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LED, Red, Low Power
(2Ma.)
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2
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SW1, 2
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Switch, SPST, 12 VDC, 25
Amps.
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1
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SW3
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Switch, SPST, 120 VAC, 1
Amp.
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1
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Ry1
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Relay, SPST, 1 Amp., 120 VAC
Coil
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1*
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Ry2
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Relay, DPDT, 10 Amps., 120VAC
Coil
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1
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Ry3
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Relay, DPDT, 1 Amp., 12 VDC
Coil
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1
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(none)
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Power Cord, 120 VAC
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?
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(none)
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Wire, Insulated Hookup, 24
Gauge
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?
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(none)
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Wire, Insulated, 12 Gauge
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1
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(none)
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Enclosure, Plastic, 4 3/8" W, 7
1/2" H, 2 1/4" D
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?
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(none)
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1/4", 10-16 Ring Terminals (as
needed)
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6
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(none)
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1/4"-20 X 1 1/2" Machine
screw
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12
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(none)
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1/4"-20 Nut
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18
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(none)
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1/4" Washer, Flat
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12
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(none)
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1/4" Washer, Split
Locking
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1
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M1
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Meter, 0 to 15-40 VDC
(Optional)
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1
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SW4
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Switch, SPDT, 120VAC, 1 Amp.
(Optional)
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* See
Text
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