Tunnel Master® wbc Installation Guide
Page 5
Equipment Dimensions
When mounting the Tunnel Master® wbc unit, minimum clearances must meet local codes.
Dimension
Amount
Notes
Width
32''
—
Height
40''
—
Depth
12''
Includes the plastic face.
Weight
130 lbs
Inclusive of the box, board, and door.
Operating Temp. Range
32° F to 122° F
0° C to 50° C
—
Frequency
60 Hz
—
Supply Voltage
110-120 VAC
—
Max Amps
6.0 Amps
—
Power Supply
15 Amps
Power must come from a dedicated, 15-Amp.
breaker.
IPX Rating
Ordinary rating
The Tunnel Master® wbc is not rated for
protection against dust and liquid ingress.
Power Requirements
Electrician must provide a dedicated 15 Amp, 120 V AC circuit to the Uninterrupted Power
Supply (UPS), and the UPS will supply power to the Tunnel Master® wbc box.
A separation of 120 V AC and 24 V DC shall be maintained for all field-wiring circuits. All 24 V DC
circuits must be supplied by a class-2 transformer, which is to be provided by the electrician.
Electrician must determine proper size of transformer, depending on total required power
consumption.
The Tunnel Master® wbc unit must be properly grounded.
Conduit Run Guidelines
When running wires to and from the Tunnel Master® wbc unit, follow these guidelines:
Punch conduit holes through bottom of WBC box whenever possible.
Use wiring channels inside WBC box (left and right sides) to contain wires.
Run a 14/3 cable, from a UPS output, to the 120 V AC terminal block. Inside the WBC box, the
terminal block is labeled with L and N for Line and Neutral. In the lower-right corner near the
AC terminal block, there is a mechanical ground lug, labeled with the universal ground symbol.
All conduit runs should meet local and national codes. Conduit shall be properly connected
and securely fastened to the boxes with listed conduit hubs, and should be tightened to the
torque specs of the manufacturer.
Over-torquing may cause enclosure breakage.
All conduit must be rigid PVC or metal.
Table 2. Equipment Dimensions
