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Uninterruptible Power Supply (UPS)


Compact UPS best suited for prevention of voltage drop/power failure in industrial-purpose computers (IPC)/controllers. This UPS adopts a lithium-ion battery and DIN rails can be attached to it.

Ratings, Characteristics, and Functions

Capacity 120 W 240 W 360 W 480 W *4
DC input Rated input voltage 24 VDC
(When standard
voltage sensitivity
is set)
24 VDC±10%
(When low voltage
sensitivity is set)
24 VDC±12.5%
(When high voltage
sensitivity is set)
24 VDC±5%
(for rated input
voltage for rated
loads connected)
5.9 A 11.7 A 17.5 A 23.3 A *5
Input terminal Push-in terminal block
Input protection Fuse
Input protection capacity 10 A 15 A 30 A
DC output Rated
(for rated output
5 A 10 A 15 A 20 A *6
Switching time Uninterrupted
Normal operation Output of input voltage as-is
Backup operation 24 V±5%
Output terminal Push-in terminal block
Overload protection Alarm display at a load level of 110% or over (normal operation)
Alarm display at a load level of 110% or over and output voltage drop
(backup operation)
Alarm display cancellation at a load equal to or below the rated
capacity (normal operation, backup operation)
Battery Type Lithium-ion battery
Rated voltage 14.4 VDC
Rated capacity 1600 mAh ×
1 parallel
1600 mAh ×
2 parallel
1600 mAh ×
3 parallel
1600 mAh ×
4 parallel
Expected battery life *1 2.5 years (50°C), 5 years (40°C), 10 years (25°C)
Replacement by user Yes (Hot swapping)
Auto battery check function Yes
Battery life counter function Yes
Charging time 4 hours *7
Backup time (25°C, initial characteristics) 6 min. (120 W) 6 min. (240 W) 6 min. (360 W) 6 min. (480 W)
Environment Operating ambient
0 to 55°C/10 to 90% (with no condensation)
Storage ambient
-20 to 55°C/10 to 90% (with no condensation)
Vibration resistance JIS C 60068-2-6 compliant. 5 to 8.4 Hz amplitude: 3.5 mm, 8.4 to 150
Hz acceleration rate: 9.8 m/s2 X, Y, and Z directions for 100 minutes
(Time coefficient: 10 minutes × coefficient factor 10 = total time 100
Shock resistance JIS C 60068-2-27 compliant. 147 m/s2, 3 times in X, Y, and Z
Enclosure Dimensions (W × D × H mm) 94 × 100 ×
148 × 100 ×
270 × 100 × 100
Weight of unit Approx. 0.8 kg Approx. 1.3 kg Approx. 2.0 kg Approx. 2.3 kg
Cooling method Natural cooling
Withstand voltage 1,000 V 50/60 Hz AC between the DC external terminals and the GR
terminal for 1 minute at a leakage current of 10 mA max.
Insulation resistance 20 MΩ min. between the DC external terminals and the GR terminal
(at 500 VDC)
to standard
Safety standard UL508/CE/C22.2 No.107.1-01
EMI Radiated
field strength
Ship standard LR/ABS/EN60945 *8/DNV GL
Internal power consumption (normal *2/
maximum *3)
7 W/22 W 11 W/41 W 14 W/60 W 18 W/80 W
Serial com-
RS232C (Interface terminal) Yes (RJ45)
USB (interface terminal) Yes (B connector)
I/O signal Yes (RJ45)
Accessory functions Beeper setting; Auto restart setting; Auto test setting; Auto restart
mode setting; Input sensitivity setting; Remote ON/OFF signal logic
setting; Cold start setting; Battery life counter setting; Power switch
function setting; Maximum backup time setting; Startup battery level
setting; Backup stop (BS) signal delay time setting; Backup (BU)
signal delay time setting; and Contact signal I/O test

*1. An estimated value for standard mounting. Not a guaranteed value.
*2. Conditions: With rated loads connected, at a rated input voltage, and with the battery fully charged.
*3. Conditions: With rated loads connected, at a rated input voltage, and at the maximum battery charging current.
*4. 400 W for use as a UL compliant device.
*5. 20 A for use as a UL compliant device.
*6. 16.7 A for use as a UL compliant device.
*7. When using in an environment at a high temperature, charging may be paused by charging temperature protection,
     then the charging time will be longer than specified time.
     "CS" will be displayed when charging temperature protection is operated.
*8. For the S8BA-24D24D120LF, install all of the RSMN-2030, RSHN-2030, and RSEN-2030 EMC filters manufactured by
     TDK. For the S8BA-24D24D240LF, S8BA-24D24D360LF, or S8BA-24D24D480LF, install both the RSMN-2030 and
     RSHN-2030 or their equivalents. Install these filters in series to the cable connected to the DC input terminal block.
     When you do, do not connect anything to the GR terminal.
     The effectiveness of the noise filters may be affected by the installation environment. Be sure to check effectiveness
     before starting operation.