8
016-564-B0-001, Rev. A1 (05/2022)
1.0 Overview and Specifications
1.1 The Alpha
®
APX3-G Series
The Alpha
®
APX3-G non-standby power supply series provides conditioned power to signal amplifiers in Cable Television
and Broadband distribution systems. The transformer is mounted directly to the chassis, and supplies the load with
current-limited, regulated AC power that is free from disturbances caused by spikes, surges and other forms of power line
transients.
This inexpensive and reliable Alpha APX3-G non-standby power supply can be mounted on a wooden, steel or concrete
pole, or mounted on a wall. It will deliver safe operation at all load conditions. The Alpha APX3-G units contain a
ferroresonant transformer, a resonant circuit capacitor, two terminal blocks, and are equipped with an input circuit breaker,
visual output "ON" indicator, output coaxial terminal, ground connection, and a pre-looped output wire for output current
measurement.
The Alpha APX3-G series, along with the entire line of Alpha power products, is designed to be one of the most rugged,
reliable, and cost-effective power supplies available. With over a million powering installations in more than 50 countries,
Alpha is one of the world’s leading suppliers of reliable communication powering and offers complete technical support
and prompt, reliable service to ensure that your power supply provides you with years of trouble-free operation. For further
information, contact Alpha or go to:
www.alpha.com
.
An optional mesh cover is available for all models. Units supplied with mesh covers are intended
for indoor use only. Contact your Alpha
®
representative for details.
NOTICE
:
Fig. 1-1, Alpha APX3-G Series Non-standby Power Supply
(front view)
Fig. 1-2, Alpha APX3-G Series Non-standby
Power Supply Vented Indoor Configuration
(front view)
