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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 installation 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 connections must be made by licensed electricians according to
National and Local electrical codes/regulations .
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 field 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 better electrical, mechanical, and flammability ratings .
Attention: Depending upon the installation, 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 installation process .
Attention: Electrical circuit to Nabco operator must not be not shared with other equipment such as lighting,
cash registers, or any device that might cause electrical interference on the circuit .
Attention: Insert all Incoming 120 VAC Power wires into the pre drilled Electric Service Access Hole located at
the left 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
Connect the Power Supply
DANGER
WARNING
CAUTION
CAUTION
CAUTION
CAUTION
