Alpha Communications® features a complete line of
U.L.® Listed plug-in transformers to power their
intercoms, video-intercoms, nurse-call systems, and
various signalling systems and devices.
The Alpha Communications® Class 2 plug-in trans-
formers were designed for quick and easy installation
in applications where pigtail-type transformers are
impractical or unsightly. They are particularly suitable
for use in home or office installations, or in areas where
the transformer must be exposed.
All models can be secured to the electrical outlet with
a set screw for secure installation, once plugged in to
the wall outlet. A built-in thermal fuse protects these
transformers from overheating and igniting. Second-
ary connections are made to convenient screw termi-
nals. All models are U.L. listed for class II indoor
wiring, and most models have a built-in LED power
MODELS / SPECIFICATIONS
12VAC, 20VA secondary
12VAC, 40VA secondary
16VAC, 20VA secondary
24VAC, 20VA secondary
24VAC, 40VA secondary
Most models measure 3.00"W (77mm)
x 4.00"H (102mm) x 2.50"D (64mm),
not including electrical prongs that
plug into electrical outlet.
Rev. 2 - 04/08
Copyright© 1997-2008, Alpha Communications®, All Rights Reserved
42 Central Drive • Farmingdale NY 11735-1202 • Phone (631) 777-5500 • Fax (631) 777-5599
TOLL-FREE 1-800-666-4800 • Web: www.AlphaCommunications.com • Email: email@example.com
Typical Plug-in Transformer
Due to continuous product improvement, all colors, sizes, materi-
als, finishes and specifications are subject to change without notice.
ARCHITECTS' AND ENGINEERS'
The plug-in transformer(s) shall be Alpha Commu-
nications® (MODEL NO. HERE) or approved
equal. Transformer(s) shall be made of heavy duty
ABS plastic, and shall be U.L. Listed for Class II