Best Uninterruptable Power Systems

Fortress UPS -- $499-$2,744

* Nine models in 360VA to 3 KVA (to 5 KVA in 50 Hz) plus extended runtime and hard wired options

* True UPS: no-break power protection in small, affordable package

* True, load-dependent runtime: front panel displays runtime on present battery charge with button selection

* Percent loading: shown on front display with one button selection, precludes overloading or over sizing

* Brownout boost voltage

* Excellent lightning and surge protection

* Auto battery and inverter testing

* Fifteen user-programmable operation functions and alarms

* Smart (RS 232) communications port

* Interface kits and optional software for network management and unattended shutdown

* UL 1449 listed; CSA certified

* Extended runtime options

* Lightning and surge protection: passes NASI/IEEE C62.41 Categories A and B

* AC input: 120 (60 Hz) or 230 (50 Hz) nominal Volts

* Efficiency: 95% on line

* Noise isolation: model dependent; excellent full-time, advanced multi-stage filter

* Brownout protection of 14 to 17% above input voltage; user adjustable transfer point

Patriot UPS -- $133-$379

* Four models, 250 to 600 VA in convenient desktop sizes

* PC level backup power with best reliability, quality, and price

* Small, light weight size

* Up to 70% more runtime than competitors

* Faster, more reliable battery charging

* Interface port in models of 400 VA and above

* Three audible alarms and front panel status lights

* Lightning and surge protection: passes ANSI/IEEE C62.41, Category A and B

* AC input: 120 or 220 Volt (60 Hz); 230 Volt (50 Hz)

* AC output: same as input ±5%

* Output wave: same as input on line; regulated step wave optimized for switch-mode on inverter

* Efficiency: 95% on line

* Noise isolation: full time EMI/RFI isolation; 100 KHz to 10 MHz

Unity/I(TM) UPS -- $3,899 to $7,529

* Single-phase UPS in four models from 3 to 8 KW

* Defines new UPS standard

* Twice the performance at half the price

* Price/performance leadership

* Lowest life-cycle cost

* Fault-tolerant reliability

* Continuous no-break power

* Excellent power conditioning

* Advanced self-diagnostics

* Compact and quiet

* UL 1449 listed

* AC input: 200 to 240 Volts (as ordered)

* Regulation: ±3% of nominal; under any line, load or battery condition, exceeds CBEMA and ANSI standards

* Frequency: automatically senses 50 or 60 Hz

* Efficiency: 96%, at 75% resistive load, batteries at full charge

* Audible noise: 40dB at 1 meter

* Input and output connection: hardwired standard

Unity/I Series 300 UPS -- $20,670-$27,480

* Four three-phase UPS in 10 to 30 KW models

* Patented on-line, single-conversion technology with unsurpassed efficiency

* 98% efficiency in economy mode

* Ideal for protecting critical systems for mainframes, enterprise-wide networks, production control and telecommunications systems

* Reduced installation costs and smaller footprint because only units in class with batteries in same cabinet

* True harmonics isolation - 5% or less input current distortion to electrical systems or generator power

* Intelligent control panel permitting programming of important system parameters

* Runtime options -- alternate battery selection increases runtime to 22 minutes at full load and 35 minutes at 70% load

* Many added features including meeting or exceeding international safety standards, UL, and cUL

* ISO 9001 manufacturing certification

* Network interface

* Input: Three-phase, 3 x 208

* Regulation: on mains, -15 to +10%, on bypass, ±10%, both programmable

* Input frequency: 60 Hz, ±6% programmable

* Input current distortion: 5% or less

* DC voltage: 216 Volts

* Output voltage: 208Y/120

* Output voltage distortion: Max 3%, linear load

Ferrups UPS -- $949- $13,995

* UPS in 500 VA to 18 KVA models

* Raises UPS performance, reliability, and intelligence to new levels

* Active Voltage Regulation converts power from almost any AC source into computer-grade power

* Longer runtime -- conditions power from sources as low as 38% below nominal, saves battery power for blackouts

* Eliminates harmonics generated by widely used switch-mode power supplies

* Computer load compatible -- guaranteed to meet demands of computer loads, including power-factor corrected, switch-mode, and linear

* Enhanced diagnostics perform auto-start and scheduled tests on logic board, battery, inverter, and other critical systems

* Enhanced communications -- RS232 port for remote monitoring and control through optional software

* UL 1449 listed

* AC input: model dependent 120/208/240 (60Hz), 220/230/240 (50Hz)

* AC output: model dependent, hardwired above 10KVA

* Voltage regulation: ±3% for input from +15 to -20% of nominal

* Efficiency: model dependent, range 88 to 92%

* Lightning and surge protection: outstanding 2000:1 spike attenuation, passes ANSI/IEEE C62.41, Category A and higher Category B testing

Uninterruptible Battery System -- $7,500-$18,765

* 24, 48, and 120 Volt UBS for unlimited runtime of UPS battery or DC operations

* Microprocessor-controlled DC power source with self-test and parameter tests; UBS can communicate to PC

* Reliable: biweekly (unless otherwise programmed) self- and parameter-testing

* Low maintenance: microprocessor drives and keeps logs maintenance, and monitoring of fuel, oil, and battery

* Unlimited backup: replenish UBS fuel and oil and your UPS or DC bus operation is virtually unlimited

* Prolonged battery life: maintains reserve-capacity batteries at optimum charge level

* Nominal DC voltage: model dependent form 24 to 120 Volts

* Output current: model dependent from 135 to 375 amperes

* Engine: varies with model

* Fuel: varies with your need: gas, diesel, or natural/LP gas (gaseous or liquid)

* Weight: varies with model from 465 to 1350 lbs.