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© Copyright 2023 Black Box Innovations Inc.
There is an initial delay when the device is powered on while the computer algorithm is checking the
electrical service. The contactor will not close until a computational observation time elapses. During
this time the current draw on the main electrical service wires must remain below threshold current
values of 80% or 100% depending on the settings of the main breaker size. This is also dependent on the
setting of the timer adjustment screw (blue & white) on the control board referred to under installation
instructions #8 and the chart in the instructions and other algorithmic values. If this observation time is
too long, it can be adjusted by turning this screw counter-clockwise. You can follow the procedure for
testing and operation in this manual to test the device. If this test shows the device is not working, then
check to see if the red LED on the control board is on. Also, check for 240/208V power at the line side
terminations (L1 & L2) on the contactor. If there is appropriate power present and the red LED is on,
then check that both the red and two blue wires with connectors (stake-ons) are on the terminals that
are plugged into the line side of the contactor and are secure. Once this is confirmed, then check that
the black and blue wires with connectors on either side of the contactor coil are secure. If they are
secure, next check the field-installed wires in the contactor lugs on both the line side (L1 & L2) and load
side (T1 & T2) are properly installed. Next, ensure the current monitoring device is secured shut and
connections are the correct polarity. Also, Ensure the current monitoring device wires and connectors
are fully seated in the respective connectors and receptacles. If these items all have been checked and
the issue is not resolved, please de-energize the device and contact the manufacturer.
Improper operation of devices contactor:
Check if the length of the current monitoring device lead wires are coiled close to, or run parallel to
other 120/240V lines and if so, move them away from the area, as this can cause improper operation.
Next, check if the current monitoring devices are closed and secured shut with the provided cable ties. If
they are, check if the current monitoring devices are installed in the correct orientation as shown on the
label and with the arrow shown inside the current monitoring device’s eye (window opening) pointing in
the direction of the current flow. If the orientation is correct, then verify that both service wires are
consistently well below the operational current specifications for up to 15 minutes (depending on the
setting of timer adjustment) with an amp meter. Ensure the current monitoring device connections are
the correct polarity (while plugged into the control board the red wire should be closest to the partition
side wall on each plug). Ensure the current monitoring device wires and connectors are fully seated in
the respective connectors and receptacles.
If the green LED is flashing it indicates there has been no current recorded on one or both current
monitoring devices for some time. If this is the case, please check the procedure in installation