DT Series ET

Built for extreme temperatures for applications where others have failed

DT Series ET Overview

The DT Series ET is a digital Uninterruptible Power System (UPS) which features Clary’s on-line double conversion, power factor corrected technology built for extreme temperature. Not only does the DT Series ET offer the highest reliability available on the market today, we consider it on-line double conversion technology at its best. We’ve built this system for that application where all others have failed due to extreme indoor or outdoor environmental conditions. Operating in temperatures from -40°C to +74°C, the UL listed DT Series ET is ideal for those areas not environmentally controlled and in remote locations. All DT Series ET systems utilize power factor corrected, and RS232 and SNMP protocols are supported. Available in rack-mount configurations with extended battery run times, custom configurations and engineering available. Clary’s DT 1000R ET is the world’s most advanced Uninterruptible Power System (UPS) for extreme environment applications. The DT 1000R ET keeps equipment running for 10 minutes to 10 hours or more (dependent on optional battery sizing) during power failures. Clary’s special Outpost™ batteries fit inside many existing cabinets and meet all NEMA temperature specifications for outdoor use.

DT Series ET Specifications

Voltage 120 VAC +12%, -25% (without battery discharge)
Frequency 45 Hz to 65 Hz
Current 7.2 A
Voltage 120 VAC ±3%
Frequency Software selectable to sync with input utility or run at crystal controlled 50/60 Hz ±1 Hz
Current 8.3 A
Crest Factor Ratio 50% load up to 4.8:1, 75% load up to 3.2:1, 100% load up to 2.4:1
THD <1%
Dynamic Response ±4% for 100% step load change 0.5 ms recovery time
Overload 110% for 10 sec; 200% for 50 ms
UPS Protection Input and output short circuit, Input and output overload, Excessive battery discharge
Temperature -40°C to +74°C (-40°F to +165°F)
Humidity 0% to 95% non-condensing
Altitude Sea level to 10,000 ft
Noise Level 46 dBA at 5 ft
Input NEMA 5-15P plug with 6 ft cord
Outputs 5-15R receptacles
Standard Features Power factor corrected input, Fully regenerative, True on-line continuous power, Low distortion sine wave output, Designed for non-linear loads, Extended brownout protection, RS232 data interface, Inverter powers load continuously, Continuous operation on -25% to +12% utility without draining batteries, Automatic bypass, AC output (2 channel load control), Rear mounted ground stud
Certifications FCC Class A, IEEE 587/ANSI C62.4, IEC 555 @ 120 VA, CUL, UL 1778
MTBF Inverter: > 100,000 hrs
Typical Recharge Time
(to 85% Capacity @ 100% Load)
8 hrs (more time required with extended battery option)
Visual Indicators Battery level, Load level, AC in, Inverter on, Summary alarm, Alarm silence, Load on
Switches / Control Panel System power, Cold start, Load I, Load II, Test, Alarm silence
Audible Alarms Utility interrupt, Inverter failure, Overload, Low battery, Self test
Intelligent Computer Interfaces Full interactive remote computer monitoring and control of most features including load control (requires optional monitoring software)
Contact Closures Open collector (see user manual for additional interface information)
SNMP Interface Allows full control and monitoring interface over network connection. Compatible with HP Openview™, IBM Netview™, CA Unicenter TNG™, and other major software offerings.
Model VA Watts Input Current Output Current Rating Backup Time*
100% / 50% Load
Weight (lb) Rackmount
H x W x D (in)
DT 1000R ET 1000 700 7.2 A 8.3 A 1000 VA / 700 W 5.0 minutes / 17.0 minutes 30 3.5 x 19.0 x 18.0 (2U)

* Backup time is based on 41 Ah batteries

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