CyberPower ST425 User Manual

TECHNICAL SPECIFICATIONS
Model ST425 ST625U
ST900U
Capacity 425VA / 260W 625VA / 360W 900VA / 500W
Nominal Input Voltage 120 Vac
Input Frequency 50/60 Hz ± 3 Hz
On-Battery Output Voltage 120Vac ± 5%
On-Battery Output Frequency 50Hz/60Hz ± 1% (auto-sensing)
Max. Load for UPS Outlets 425VA / 260W 625VA / 360W 900VA / 500W
Max. Load for Full-Time Surge
Protection outlets
7 Amps 12 Amps 12 Amps
On-Battery Output Wave Form Simulated Sine Wave
Operating Temperature + 32°F to 104°F / 0°C to 40°C
Operating Relative Humidity 0 to 95% non-condensing
Size (W x H x D)
8.3” x 4.5” x 3.2”
210 x 115 x 81 mm
9.8” x 5.8” x 3.2”
250 x 147 x 82 mm
12.2” x 7” x 3.1”
310 x 178 x 80 mm
Net Weight (lbs / kg) 3.79 lbs / 1.72 kg 6.48 lbs / 2.94 kg 8.70 lbs / 3.95 kg
Typical Battery Recharge Time 8 hours typical from total discharge
Typical Battery Life 3 to 6 years, depending on number of discharge/recharge cycles
Recommended Battery Sealed Maintenance Free Lead Acid Battery
Safety Approvals UL1778(UPS), cUL CSA C22.2 No. 107.3-05, FCC/DoC Class B

CyberPower ST425 Specifications

General

Waveform	Pseudo sine
Output power	260 W
UPS topology	Standby (Offline)
Input frequency	47/63 Hz
Output frequency	50/60 Hz
Audible alarm modes	Alarm when on battery, Fault, Low battery alarm, Overload alarm
Surge energy rating	890 J
Output power capacity	0.425 kVA
Socket circuit breaker	Yes
Power protection features	Overload
Input operation voltage (max)	140 V
Input operation voltage (min)	96 V
Output operation voltage (max)	120 V
Transfer time (Line Mode to Battery Mode)	8 ms
Power plug	NEMA 5-15P
AC outlet types	NEMA 5-15R
AC outlets quantity	8 AC outlet(s)
Safety	UL1778, cUL, FCC DOC B, CEC
Form factor	Compact
Cable length	1.5 m
Product color	Black
LED indicators	Power
Battery voltage	12 V
Battery capacity	2.9 Ah
Battery technology	Sealed Lead Acid (VRLA)
Battery recharge time	8 h
Number of batteries supported	1
Typical backup time at full load	1.5 min
Typical backup time at half load	6 min
Operating altitude	0 - 3000 m
Non-operating altitude	0 - 15000 m
Storage temperature (T-T)	-15 - 45 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	0 - 95 %
Sustainability certificates	RoHS, ENERGY STAR

Weight and Dimensions

Depth	81 mm
Width	210 mm
Height	114 mm
Weight	1723 g