Toshiba JK Series - Low Voltage Compartment

Basic Installation and Operation Guide
JK Series 720 Controllers
TOSHIBA
21
Low Voltage Compartment
The low voltage compartment contains controller
components rated 600 volts maximum, which may include
such items as overload relays, pilot devices, control relays,
etc.
Hazardous Voltage. Turn off and
lock out control circuit power
before servicing.
In the standard controller arrangement, the low voltage
compartment is located in the upper half of the enclosure. A
subpanel is located behind the low voltage door, which is
used to mount various relays and other devices. The
subpanel is hinged in such a way that it can be swung open,
if necessary, to gain access to the main horizontal bus
which is located directly behind the low voltage
compartment (Fig. 35).
Hazardous Voltage. Turn off and
lock out all control and primary
power before opening this panel.
Fig. 35 Low Voltage Subpanel Opened to
Expose Main Bus
A low voltage vertical wireway feeds directly into the lower left hand corner of the low voltage compartment. This
wireway provides isolation for control wires entering the bottom of the enclosure. Control wires entering the top of the
enclosure feed directly into the low voltage compartment. A horizontal low voltage wireway is provided at the lower
front of the low voltage compartment. At each end of the horizontal wireway there is an opening for inter-cubicle control
wiring.
DANGER
WARNING