Datasheet
User Manual
The CyberPower ST425 is a reliable standby UPS system, designed to protect home office and small business electronics from power disturbances and outages. With a capacity of 425 VA / 260 W, this compact unit is ideal for safeguarding computers, networking devices, and home entertainment systems. It features eight NEMA 5-15R outlets, four of which are battery backup and surge protected, while the remaining four provide surge protection only. The ST425 includes a 5-foot NEMA 5-15P input cord and delivers essential protection with a surge energy rating of 890 joules.
The CyberPower ST425 offers user-friendly operation with its LED status indicators and audible alarms, providing straightforward monitoring of power conditions. This UPS system includes both USB and serial communication ports for versatile connectivity and control. It comes with PowerPanel Personal Edition software, allowing users to manage and monitor the device's performance efficiently. Backed by a 3-year limited warranty and a $75,000 Connected Equipment Guarantee, the ST425 ensures dependable power protection and confidence for your essential electronics.
| Battery Features |
| Battery Quantity |
1 |
| Battery Size |
12V / 2.9 Ah |
| Battery Type |
Sealed Lead-Acid Battery |
| Recharge Time |
8 Hours |
| Compliance & Warranty |
| CEG Amount |
$75000 |
| RoHS Compliant |
RoHS Compliant |
| Safety |
UL1778 cUL FCC DOC Class B CEC |
| Warranty |
3 Year Limited Warranty |
| Electrical Protection Features |
| EMI/RFI Filtration |
Yes |
| Overload Protection |
Internal Circuitry Limiting Circuit Breaker Protected |
| Surge Protection |
Yes, 890 J |
| Input Characteristics |
| Frequency Range |
47 Hz 63 Hz |
| Plug Type |
NEMA 5-15P |
| Interfaces & Monitoring |
| HID Compliant USB Port |
No |
| Outlet Details |
| Outlet Type |
8 NEMA 5-15R |
| Total Number of Outlets |
8 |
| Output Characteristics |
| Battery Frequency |
50/60 Hz 1% |
| Battery Voltage |
120 VAC 5% |
| Battery Waveform |
Simulated Sine Wave |
| Capacity (VA) |
425 VA |
| Capacity (Watts) |
260 W |
| Physical Properties |
| Actual Dimensions (in) |
8.3 x 4.5 x 3.2 (in) |
| Actual Weight (lb) |
3.8 |
| Color |
Black |
| Cord Length |
5 ft (1.5 m) |
| Shipping Dimensions (in) |
12.62 x 4.62 x 6.5 (in) |
| Shipping Weight (lb) |
13.62 |
| Runtime and Battery Maintenance |
| Full-Load Runtime |
1.5 min |
| Half-Load Runtime |
6 min |
| Unit Configuration |
| Energy Efficiency Mode |
GreenPower UPS High-Efficiency |
| Form Factor |
Compact |
| Model ID |
ST425 |
| Topology Type |
Standby |
