Alpha Technologies PWE-6FT - Manual (Page 13)

13 031-259-B0-001, Rev A
1.2 Optional Features
Options can be factory installed. Many of these options can be easily installed in the field by
the operator.
ACI (AC Indicator)
The AC Indicator (green lamp) is located next to the LRI lamp on the outside of the PWE/PME
Series enclosures. As long as there is voltage present at the output, the ACI lamp remains ON.
The ACI is a simple form of status monitoring which allows the operational status of the power
supply to be verified from the ground. The ACI-LL, long life LED is recommended, since it
provides much longer life than the original incandescent light bulb design. Models for 60V and
90V are available.
BHM (Battery Heater Mat)
The Battery Heater Mat is an AC line operated 150W heater mat which turns on at 40°F to
increase battery capacity in cold environments. BHM are available in 120VAC and 240VAC
versions.
ECF (Enclosure Cooling Fan)
The Enclosure Cooling Fan is a standby powered, thermostat controlled cooling fan system for
maintaining a cooler environment within the PWE Series enclosures. Alpha recommends the
enclosure cooling fan option for installations in extremely high temperature environments. The
fan is thermostatically controlled to turn on at 140°F/60°C, and off at 110°F/43°C. Replace the
fan fuse with a 1/4” X 1-1/4”, 5 Amp, 250 Volt fuse only (Alpha P/N 460-025-10).
LA-P+ (Lightning Arrester)
The LA-P+ Lightning Arrester consists of three Metal Oxide Varistors (MOV) and is plugged
directly into the enclosure’s convenience outlet, to provide additional protection from voltage
spikes caused by lightning and other power disturbances. The LA-P+ eliminates the need for
hard-wired MOVs, and no additional wiring is necessary. The LA-P+ 120 is used in 120VAC
applications, and the LA-PE+ 240 is used in 240VAC applications.
LRI (Local Remote Indicator)
The LRI lamp (red) is located on the outside of the PWE/PME Series enclosure. During normal
AC line operation, the lamp remains OFF. The lamp comes ON only when the power supply is
running in Standby Mode. In the event that a major alarm is detected, the lamp flashes to
indicate service is required. The LRI is a simple form of status monitoring which allows the
operational status of the power supply to be verified from the ground.
MRC (Module Retaining Cable)
The Module Retaining Cable provides added security for the XM Series 2 power supply. It
attaches the unit to the PWE Series enclosure wall to prevent it from being inadvertently
knocked off of its shelf.
SPI (15A Service Power Inserter) and SPI-25 (25A Service Power Inserter)
The Service Power Inserter is required in all enclosures. The primary function of the SPI is to
provide a connection point between the Alpha power supply and the cable load. Additionally the
SPI can be used to bypass the power supply with a Service Power Supply. The SPI is rated for
15 amps output and is standard on the PWE/PME Series enclosures. The SPI-25 is the same
as the SPI but rated for 25 amps for use with higher output current power supplies.
1.0 Introduction to the PWE-6FT Enclosure, continued