The Fortress Harsh 3 maintains efficient AC Emergency Power
to operate all emergency lighting fixtures at “full-light” output,
providing superior dependability and security to
commercial/industrial environments in an outdoor environment.

• 3 KW – 125 KW (or 3,000 Watts – 125,000 Watts) three phase
output unit uses the latest DSP/PWM technology to provide
the most advanced performance and reliability features

• 208Y/120, 480Y/277, 208 or 480VAC input 60Hz

• 208Y/120 or 480Y/277VAC True “on-line” design
is ≥92% efficient at 100% linear load

• Sealed, maintenance-free, lead calcium (AGM) batteries
• 10-Year prorated warranty
• DSP/PWM Smart Battery Monitoring System is TEMPERATURE
COMPENSATED maintaining maximum runtime and battery life
• Microprocessor controlled recharge and DSP/PWM overcharge
protection standard

• Emergency power provides FULL LIGHT OUTPUT from
all lamps and fixtures for the entire runtime
• Operates fluorescent, compact fluorescent, incandescent,
quartz, H.I.D., LED and other lamp types
• Standard or electronic ballasts, dimming devices or panels,
sensors and most control equipment
• Standard or LED Exits and other safety equipment

• Built to UL 924 and UL 1778 standards, meets NFPA 101, NFPA 70, NEC and OSHA standards
• Cities of Chicago and New York approved
• Complies with the Buy American Act

• Provides overload, surge and undercurrent protection using
DSP/PWM technology and DSPM Watchdog Software to
protect system performance and reliability
• Surge protection against load surges as defined in
ANSI/IEEE C62.45 category A and B

• DSP/PWM technology and DSPM Watchdog Software provides
complete self diagnostic capabilities and LCD Monitoring
• Informative advanced Display and Alarms keep you
in control of your emergency lighting environment 24/7
• Automatically performs periodic self-tests ensuring a safely
lighted environment prior to an emergency
• Single point of testing instead of multiple testing points
with battery packs

• Modular design enables flexible installation
• Forced air cooling for maximum reliability
• Systems up to 10 KW are self contained; larger systems
require external battery cabinet(s)

• Modular design and small footprint allow easy installation in
an outdoor environment
• Phone assisted factory start-up standard for all systems
• Extended warranty available

 • DSPM offers numerous UL924 optional devices to meet unusual
or difficult application parameters
• ECM – Environmental Circuit Module allows fixtures and lamps on
the emergency circuit(s) to be operated by normal switching
and/or dimming devices in NON-emergency conditions
• Dimming Panel Interface allows use with emergency lights
controlled by common dimmer panel

• 1-Year full warranty on system electronics
• System 1-year on-site warranty labor with
DSPM phone assisted start-up
• 5-Year powertrain warranty
• Maintenance contracts available