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GT20 Wire and Programming Manual www.NabcoEntrances.com
P/N C-00140 Rev 5-7-18
CHAPTER 4: 120 VAC GENERAL WIRING
Shut the installaon site, branch Circuit Breaker OFF Failure to do so may result in serious
personal or fatal injury When uncertain whether power supply is disconnected, always
verify using a voltmeter
All high voltage electrical connecons must be made by licensed electricians according to
Naonal and Local electrical codes/regulaons
Permanent wiring shall be employed as required by local codes
Keep all Incoming 120 VAC wiring separate from low voltage wiring within Header 120 VAC
Power wires must be routed (separate from other wiring) located near the top of inside Header
Ensure that the Grounding of the Electric Power Supply is installed/connected in a proper way
(especially the PE Cable from the Building Side)
All cable used for eld wiring from a Class 2 circuit of an operator to an external device shall be:
a Type CL2, CL2P, CL2R, or CL2X complying with the Standard for Power Limited Circuit Cables,
UL 13, or
b Other cables with equivalent or beer electrical, mechanical, and ammability rangs
Aenon: Depending upon the installaon, the Power Switch/Program Selector may have to be installed
on the opposite side of the Header If 120 VAC Power wires must be installed from Hinge Side of
Header, ensure all wires are securely clipped to prevent pinching of the wires during the Motor/
Operator installaon process
Aenon: Electrical circuit to Nabco operator must not be not shared with other equipment such as lighng,
cash registers, or any device that might cause electrical interference on the circuit
Aenon: Insert all Incoming 120 VAC Power wires into the pre drilled Electric Service Access Hole located at
the le or right side of Header End Cap
Note: It is recommended for the Installer to house all Incoming 120 VAC wires within an Electrical Conduit.
1. Connect the Main Power Supply.
2. Mount the Side Cover.
DN 1177
~2 Cable
L = Live Wire
N = Neutral Wire (Common)
PE = Ground Wire
PE Cable
~1 Cable
Use Copper
Conductors Only
PC-ABS
0548-407
L Cable
N Cable
PE Cable
Figure 1