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INSTALLATION
For C-UL Listed applications, the unit shall be installed in accordance with Part 1 of the
Canadian Electrical Code. Transformer model BE31763001 by Basler Electric and transformer
model 2010028 by Galaxy Transformer and Magnetics have been certified for UL and C-UL
applications. Transformer model A41-130-28A34 by EWC has been certified for UL applications
only.
The 781N enclosure should be securely fastened to the wall using the four 1/4 inch diameter
mounting holes located in the back of the box. Position the enclosure so that the transformer is
located on the left-hand side. The 781N must not be installed outdoors.
For the 120VAC power input, terminal block TB1 will accommodate up to 12 AWG wire (solid).
Conduit must be used to provide an adequate earth ground to the enclosure.
NOTE: The maximum input current is 750mA.
The 781N is designed to be used with electric latch pullback exit devices. Use the chart below to
determine the correct wire gauge per given length of two-conductor cable that will be run from
the 781N to each exit device. Do not exceed the maximum length listed with each wire gauge.
WIRE GAUGE
16 AWG
14 AWG
12 AWG
Up to two devices can be used with the 781N. If only one device is to be used, wire to the
"DEVICE ONE" location at TB3, terminals 5 and 6.
NOTE: Be sure to observe polarity when connecting devices 1 and 2 to TB3.
(Refer to the wiring diagram located on the lid of the controller.)
An ASSA ABLOY Group brand
781N Electric Latch Pullback Controller
Installation Instructions
MAXIMUM LENGTH OF TWO-CONDUCTOR CABLE
40 FEET
60 FEET
100 FEET
80-9477-0781-010 (01-13)
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Related Manuals for Yale 781N
Summary of Contents for Yale 781N
- Page 1 12 AWG 100 FEET Up to two devices can be used with the 781N. If only one device is to be used, wire to the "DEVICE ONE" location at TB3, terminals 5 and 6. NOTE: Be sure to observe polarity when connecting devices 1 and 2 to TB3.
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Page 2: Standard Operation
STANDARD OPERATION The 781N provides a choice of two methods of electric latch pullback: Single System or Dual System SINGLE SYSTEM LATCH PULLBACK This method allows one input to control two devices sequentially. A momentary switch closure across terminals 1 and 2 of TB3 will pull back DEVICE ONE first, followed by DEVICE TWO. Use this method for single door applications or on a pair of doors using a device on one or both leaves. - Page 3 The 781N comes from the factory set up for use without fire alarm interface. If the fire alarm is to be used with this controller, move the program jumper PJ2 from between the middle post and the end post, marked "FA DIS"...
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Page 4: Troubleshooting
Power Limited Outputs All outputs to the 781N are power limited. Depending on the output, if a short circuit or an over load condition should occur, the output will either shut off entirely or go into a safe current limiting state. - Page 5 JURISDICTION. Any retrofit or other field modification to a fire rated opening can potentially impact the fire rating of the opening, and Yale Locks & Hardware makes no representations or warranties concerning what such impact may be in any specific situation. When retrofitting any portion of an existing fire rated opening, or specifying and installing a new fire-rated opening, please consult with a code specialist or local code official (Authority Having Jurisdiction) to ensure compliance with all applicable codes and ratings.