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
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