AR-PRO – AC LINE VOLTAGE REGULATOR
HIGH RANGE BREAKER: The AR-PRO’s basic cur-
rent rating is 30 amps output at 120 VAC. The current
at the input (where the circuit breakers are located) will
be the same as the output only if the input voltage is
also 120V (low range). If the AR-PRO is powered from
a 220/240 volt source (high range), the input current
will be approximately half, or 15 amps, to produce
the rated 120V, 30A at the output. Therefore, safety
considerations require a separate 15A breaker which
is active only when a high range (170 volts or higher)
supply voltage is used. This breaker trips by popping
out. If it trips, decrease the load on the AR-PRO and
POWER SWITCH: This is the AR-PRO’s main on-off
switch. It is actually a 30 ampere magnetic-trip circuit
breaker rated for use as a switch. If the current drawn
through the AR-PRO exceeds 30 amps at any time,
the breaker will trip by snapping into the off position.
If this happens, decrease the load on the AR-PRO
After turning the Power switch on, there is a delay of
approximately 3 seconds before power is available at
INPUT CONNECTOR: This 4-pin twist-lock connec-
tor is rated at 30 amperes for 120/240 volt service.
See the Installation section for information on wiring a
supply cable. 120V/100V SWITCH (Model AR-PRO-J
only): The AR-PRO-J can supply 120 VAC for use with
equipment intended for North America, or 100 VAC
for equipment intended for use in Japan and other
countries. Choose the setting that matches the type of
equipment you plan to power with the AR-PRO-J.
TERMINAL STRIP FOR REMOTE OPERATION: Con-
nection to this screw-terminal strip allows for a single
AR-PRO to be turned on remotely, or for multiple
AR-PROs to be turned on remotely, either simultane-
ously or in a delayed sequence. A built-in delay of
approximately half a second is available to stagger
the potentially large inrush currents that occur when
certain types of equipment are powered up simulta-
neously. Using such a delayed sequence can avoid
blowing a house breaker when all the AR-PROs are
powered from the same circuit. See the section on
Remote/Delayed Operation later in this manual for
details. Note: No connections or jumpers are needed
for normal AR-PRO operation.
REGULATED OUTLETS: There are 14 regulated out-
lets on the AR-PRO, two in front and the balance in the
rear. While the combined load formed by all equipment
plugged into all 14 outlets may not exceed 30 amps,
the load on any one individual outlet may not exceed
15 amps, which is the maximum permissible for the
(12) Switched Regulated Outlets
Output Voltage Selector Switch (J Version Only)
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