781N Electric Latch Pullback Controller
Installation Instructions
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
MAXIMUM LENGTH OF TWO-CONDUCTOR CABLE
16 AWG
40 FEET
14 AWG
60 FEET
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.
(Refer to the wiring diagram located on the lid of the controller.)
An ASSA ABLOY Group brand
80-9477-0781-010 (01-13)
