S Series

Built for the most delicate precision instruments

S Series Overview

The Clary S Series scientific-grade Uninterruptible Power System (UPS) is built to protect precision instruments, sensitive electronics and medical systems. The S Series supplies reliable Continuous Digital Power during brownouts, dirty unstable electrical power events, and loss of input power. Unlike most other UPS’s, the S Series will run continuously from batteries or auxiliary generator systems as long as power is available. Clary specializes exclusively in true On-Line Double Conversion technology, which provides ultimate protection from all power anomalies, keeping mission-critical applications protected and running. The S Series provides a digitally controlled precision regenerated output sine wave, unlike common standby or line interactive designs, and it is the only UPS of its class to offer medical grade performance. By supplying clean regulated power to sensitive medical devices, the S Series also protects the patient and procedure being performed by isolating the input from the output. Connectivity features include remote control, configuration and monitoring of the UPS. Clary products are compatible with all major network operating systems.

S Series Specifications

Voltage 120 VAC +12%, -25% (without battery discharge)
Frequency 45 Hz to 65 Hz
Voltage 120 VAC ±3%
Frequency Software selectable to sync with input utility or run at crystal controlled 50/60 Hz ±1 Hz
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 3.00% maximum (linear), 5.00% maximum (non-linear)
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 0°C to +50°C (+32°F to +122°F)
Humidity 0% to 95% non-condensing
Altitude Sea level to 10,000 ft
Noise Level 39 dBA to 42 dBA at 5 ft
Input NEMA 5-15P plug with 6 ft cord (1250 - 1500 VA connectors), NEMA 5-20P plug on 6 ft cord (2000 - 2400 VA connectors)
Outputs Duplex hospital grade receptacle 5-15R, 1.25K-1.5K - 5-20R, 2K-2.4K
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, UL-60601-1
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 RS232 data interface (DB-9), Full interactive remote computer monitoring and control of most features including load control (requires optional monitoring software), Compatible with Systems Enhancement™ UPS control software
Contact Closures DB-9, Open collector, Optional dry contact module
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)
S 1250 1250 875 8.8 A 10.4 A 1250 VA / 875 W 7.0 minutes / 21.0 minutes 80 -
S 1500 1500 1050 10.7 A 12.5 A 1500 VA / 1050 W 5.0 minutes / 17.0 minutes 80 -
S 1500-601 1500 1050 10.7 A 12.5 A 1500 VA / 1050 W 5.0 minutes / 17.0 minutes 80 -
S 2000 2000 1400 14.3 A 16.7 A 2000 VA / 1400 W 5.0 minutes / 18.0 minutes 100 -
S 2400 2400 1680 18.3 A 20.0 A 2400 VA / 1680 W 5.0 minutes / 18.0 minutes 100 -

* Backup time is based on 41 Ah batteries

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