Datasheet
S8BA-SBF
21
Ratings, Characteristics, and Functions
Description Capacity 480 W 960 W
DC input
Rated input voltage 24 VDC
Input voltage range 23 to 28 VDC
Input
maximum
current
for rated input voltage
for rated loads connected
21.5 A 43.5 A
Input terminal Push-in terminal block
Input protection Fuse (cannot be replaced by the customer)
Input protection capacity 30 A 60 A
DC output
Rated
current
for rated output voltage 20 A 40 A
Switching time Uninterrupted
Output
voltage
Normal operation Input voltage through output
Backup operation 21 to 28 V (the voltage cannot be adjusted)
Output terminal Push-in terminal block
Overload
protection
Warning display
• UPS output will
continue through
bypass [during normal
operation]
• UPS output will continue
through battery [during
backup operation]
101% or more
Output stopped by
overload protection
• Stop output [during
normal operation]
• The internal power
supply to the UPS will
stop after 10 sec. [during
backup operation]
111% or more
Warning display
cancellation (During
normal operation, during
backup operation)
93% or more
Battery unit
Type Lithium-ion battery
Rated voltage 25.2 VDC
Rated capacity 3900 mAh 7800 mAh
Battery life expectancy *1 10 years (25°C), 6.7 years (35°C), 3.7 years (45°C), 1.9 years (55°C)
Replacement by user Yes (Hot swapping)
Battery Life Counter Function Yes
Charging time 8 hours (90%) *3
Backup time (25°C, initial
characteristics)
6 min. (constant power rated load)
The backup time can be set from the mode selection / backup operation time selection switch, or the
shutdown software.
Environme
nt
Operating environment temperature /
humidity
0 to +55°C / 10 to 90%RH with no condensation
Storage environment temperature /
humidity
−20 to +55°C / 10 to 90%RH 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/s
2
X, Y, and Z directions: 100 min.
(Sweep time: 10 min.×Sweep count 10 times=Total: 100 min.)
Shock resistance JIS C 60068-2-27 compliant: 147 m/s
2
X, Y, and Z directions three times
Structure
Dimensions (W×H×D mm) *2
44 × 124 × 111.4 (UPS control unit 20 A)
80 × 124 × 111.4 (battery unit 20 A)
52 × 124 × 111.4 (UPS control unit 40 A)
150 × 124 × 111.4 (battery unit 40 A)
Weight
Weight of control unit Approx. 0.6 kg Approx. 0.7 kg
Weight of battery unit Approx. 1.5 kg Approx. 2.5 kg
Cooling method Natural cooling
Dielectric
breakdown
voltage
Withstand voltage DC external terminals to casing: 510 V AC, 1 minute, leakage current 5 mA max.
Insulation resistance DC external terminals to casing: 20 MΩ or more. (500 V DC)
Standard
compliance
Safety standard UL508 / CE / C22.2 No. 107.1-01
EMI
Radiation disturbance
field strength
EN61000-6-4 / FCC / ICES / RCM
Internal power consumption
(normal *4 / maximum *5)
7 W / 29 W 15 W / 58 W
Serial
communica
tion
RS-232C (Interface terminal)
Yes (RJ45)
USB (Interface terminal)
I/O signal (Interface terminal) Yes (RJ45)
Accessories
USB cable (2.2 m) (included with control unit)
Battery connection cable (included with battery unit)