745-872-C0-002, Rev. B
8
1.0 Introduction
The Generator Expansion Module (GEM) extends runtime for PWE-3 and PWE-6 pole-mount
enclosures. The GEM installs to the base of a PWE enclosure, and shelters and safeguards a
lightweight portable generator. Once the mounting hardware is in place, the GEM can be quickly
removed or re-installed without tools.
The generator can be connected to the power supply using an optional Line Transfer Switch (LTS)
that switches the power source from generator to line automatically on resumption of AC line power.
The GEM can be deployed independently, or as a part of Alpha’s Generator Expansion Module
system, which includes the GEM enclosure, mounting kit, line transfer switch (LTS), and portable
generator.
Key Features:
• Quick installation
• Optional Line Transfer Switch (LTS)
• Provides four to ten hours of additional runtime
• Protects generator from weather and theft
• Field-installable on existing PWE-3 and PWE-6 enclosures
• Can be left in place or easily removed after an outage
Mounting Slide
Rails
Generator Expansion
Module
Portable Generator
Exhaust Hood / Rain
Guard
Fig. 1-1, Generator Expansion Module (GEM)
