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CyberPower ST425 uninterruptible power supply (UPS) Standby (Offline) 0.425 kVA 260 W 8 AC outlet(s)
SKU
ST425
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In stock
ST425, 96–140 V AC, 47–63 Hz, 425 VA, 260 W, 8x NEMA 5-15R, 12V / 2.9Ah
UNSPSC: 39121011
- 425 VA/260 W
- 8 Standard Outlets
- Standby Topology
- Full-time Surge Protection and Battery Backup
The CyberPower ST425 uninterruptible power supply (UPS) system provides battery backup and surge protection for lightning-induced surges and other power events that can damage electronic equipment. This unit delivers enough battery backup to power connected electronics through utility power failure and enough runtime to perform a proper shutdown to protect against the loss of data and damage to valuable electronics during longer outages. Including a sleek design, this UPS is perfect for all your home office and entertainment needs, including computers, gaming consoles, and broadband routers.
With a $75,000 lifetime connected equipment guarantee and a three-year warranty, you can trust CyberPower’s commitment to the quality of this Battery Backup with Surge Protection.
Battery Backup
Supplies power long enough for equipment to properly shut down when utility power fails. Helps prevent loss of data and minimizes the component stress caused by a hard shutdown.
Surge Protection
Diverts excess voltage away from sensitive electronic equipment during an AC power surge or power spike to prevent damage.
Simulated Sine Wave Output
Uses pulse wave modulation to generate a stepped, approximated sine wave to supply cost-effective battery backup power for equipment that does not require sine wave output.
GreenPower UPS™ High-Efficiency Design
Reduces power consumption by utilizing a compact charger and power inverter to create an ultra-efficient backup power system for home and office use.
Transformer-Spaced Outlets
Accommodates large transformer-based plugs without compromising the access of other outlets.
ENERGY STAR®
This model is an ENERGY STAR® qualified Uninterruptible Power Supply (UPS) system. ENERGY STAR is the trusted, government-backed symbol for energy-efficient products and practices that help save money and protect the environment.
Three-Year Warranty
CyberPower will replace a defective UPS system (including batteries) within three years of the purchase date. See warranty for details.
Connected Equipment Guarantee
CyberPower will repair or replace properly connected equipment if it is damaged by a power surge.
With a $75,000 lifetime connected equipment guarantee and a three-year warranty, you can trust CyberPower’s commitment to the quality of this Battery Backup with Surge Protection.
Battery Backup
Supplies power long enough for equipment to properly shut down when utility power fails. Helps prevent loss of data and minimizes the component stress caused by a hard shutdown.
Surge Protection
Diverts excess voltage away from sensitive electronic equipment during an AC power surge or power spike to prevent damage.
Simulated Sine Wave Output
Uses pulse wave modulation to generate a stepped, approximated sine wave to supply cost-effective battery backup power for equipment that does not require sine wave output.
GreenPower UPS™ High-Efficiency Design
Reduces power consumption by utilizing a compact charger and power inverter to create an ultra-efficient backup power system for home and office use.
Transformer-Spaced Outlets
Accommodates large transformer-based plugs without compromising the access of other outlets.
ENERGY STAR®
This model is an ENERGY STAR® qualified Uninterruptible Power Supply (UPS) system. ENERGY STAR is the trusted, government-backed symbol for energy-efficient products and practices that help save money and protect the environment.
Three-Year Warranty
CyberPower will replace a defective UPS system (including batteries) within three years of the purchase date. See warranty for details.
Connected Equipment Guarantee
CyberPower will repair or replace properly connected equipment if it is damaged by a power surge.
| Power | |
|---|---|
| Output frequency | 50/60 Hz |
| Output power | 260 W |
| Input operation voltage (min) | 96 V |
| Input operation voltage (max) | 140 V |
| Output operation voltage (min) | 120 V |
| Output operation voltage (max) | 120 V |
| Surge energy rating | 890 J |
| Output power capacity | 0.425 kVA |
| Input frequency | 47/63 Hz |
| Ports & interfaces | |
| Cable length | 59.1" (1.5 m) |
| Socket circuit breaker | Yes |
| AC outlets quantity | 8 AC outlet(s) |
| AC outlet types | NEMA 5-15R |
| Power plug | NEMA 5-15P |
| Performance | |
| Audible alarm modes | Alarm when on battery, Fault, Low battery alarm, Overload alarm |
| UPS topology | Standby (Offline) |
| Waveform | Pseudo sine |
| LED indicators | Power |
| EMI/RFI noise filtering | Yes |
| Surge protection | Yes |
| Power protection features | Overload |
| Audible alarm(s) | Yes |
| Transfer time (Line Mode to Battery Mode) | 8 ms |
| Features | |
| Output frequency | 50/60 Hz |
| Audible alarm modes | Alarm when on battery, Fault, Low battery alarm, Overload alarm |
| UPS topology | Standby (Offline) |
| Waveform | Pseudo sine |
| Output power | 260 W |
| Input operation voltage (min) | 96 V |
| Input operation voltage (max) | 140 V |
| Output operation voltage (min) | 120 V |
| Output operation voltage (max) | 120 V |
| Surge energy rating | 890 J |
| EMI/RFI noise filtering | Yes |
| Surge protection | Yes |
| Power protection features | Overload |
| Audible alarm(s) | Yes |
| Output power capacity | 0.425 kVA |
| Socket circuit breaker | Yes |
| Transfer time (Line Mode to Battery Mode) | 8 ms |
| Input frequency | 47/63 Hz |
| Battery | |
| Number of batteries supported | 1 |
| Battery voltage | 12 V |
| Battery capacity | 2.9 Ah |
| Battery technology | Sealed Lead Acid (VRLA) |
| Battery recharge time | 8 h |
| Typical backup time at half load | 6 min |
| Typical backup time at full load | 1.5 min |
| Design | |
| Form factor | Compact |
| LED indicators | Power |
| Product colour | Black |
| Safety | UL1778, cUL, FCC DOC B, CEC |
| Cable length | 59.1" (1.5 m) |
| Operational conditions | |
|---|---|
| Operating temperature (T-T) | 0 - 40 °C |
| Storage temperature (T-T) | -15 - 45 °C |
| Operating relative humidity (H-H) | 0 - 95% |
| Operating altitude | 0 - 118110.2" (0 - 3000 m) |
| Non-operating altitude | 0 - 590551.2" (0 - 15000 m) |
| Technical details | |
| Output frequency | 50/60 Hz |
| Sustainability certificates | ENERGY STAR |
| Compliance certificates | RoHS |
| Weight & dimensions | |
| Weight | 3.79 lbs (1.72 kg) |
| Width | 8.27" (210 mm) |
| Height | 4.49" (114 mm) |
| Depth | 3.19" (81 mm) |
| Packaging data | |
| Manual | Yes |
| Certificates | |
| Safety | UL1778, cUL, FCC DOC B, CEC |
| Packaging content | |
| Manual | Yes |
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|---|---|---|---|---|---|---|
| SKU |
ST425
|
EC550G
|
CP550SLG
|
BE425M
|
ST625U
|
EC450G
|
| Manufacturer |
Cyberpower
|
Cyberpower
|
Cyberpower
|
APC
|
Cyberpower
|
Cyberpower
|
| Form factor |
Compact
|
Compact
|
Compact
|
Compact
|
Compact
|
Compact
|
| Output power capacity |
300VA to 600VA
|
300VA to 600VA
|
300VA to 600VA
|
300VA to 600VA
|
600VA to 1200VA
|
300VA to 600VA
|
| Product colour |
Black
|
Black
|
Black
|
Black
|
Black
|
Black
|
| Output power |
150W to 300W
|
300W to 500W
|
300W to 500W
|
150W to 300W
|
300W to 500W
|
150W to 300W
|
| UPS topology |
Standby (Offline)
|
Standby (Offline)
|
Standby (Offline)
|
Standby (Offline)
|
Standby (Offline)
|
Standby (Offline)
|





