Uninterruptible power supply UPS Eaton 3S450F

The Eaton 3S450F is a standby (offline) uninterruptible power supply designed to protect home and small office equipment from power interruptions. With a rated output power of 270 W (0.45 kVA) and six AC outlets, it provides automatic battery backup during mains failure and basic surge protection against voltage spikes. The unit uses sealed lead acid (VRLA) battery technology and comes with a 1.5 m power cable; its two-tone design is available in white and black finishes to fit different environments.

Advantages

The UPS offers instant switchover to battery power to keep critical devices running during short outages and to allow safe shutdown during longer interruptions. Its six AC outlets enable multiple devices to be connected simultaneously without additional power strips. The compact 2.9 kg housing and simple standby design make it easy to install and maintain, while certified safety approvals ensure compliance with common regional standards.

Suitable for

• Desktop computers and workstations
• Home networking equipment such as routers and modems
• Point-of-sale terminals and small retail systems
• Peripherals like monitors, external hard drives and printers

Key specifications

• Output power: 270 W
• Power capacity: 0.45 kVA
• Topology: Standby (Offline) UPS
• Battery type: Sealed Lead Acid (VRLA)
• Number of AC outlets: 6
• Cable length: 1.5 m
• Weight: 2.9 kg
• Available colours: White, Black

How to use

Place the UPS on a stable, flat surface with adequate ventilation and keep it away from heat sources and liquids. Connect the UPS to mains power using the supplied cable and allow the battery to charge for the time specified in the user manual before relying on battery backup. Plug your critical devices into the protected AC outlets; avoid connecting high-power appliances that exceed the unit's 270 W output. During a mains failure the unit will automatically switch to battery power and supply connected devices until the battery is depleted or mains power is restored.

Recommendations

Maintain regular battery checks and replace the sealed lead acid battery according to the manufacturer’s lifecycle guidance. For reliable operation, keep the UPS in a dust-free environment, avoid overloading beyond the rated output power, and perform safe, orderly shutdowns of computers when battery runtime is low. For installations that require extended backup or advanced power conditioning, consider a higher-capacity or online topology UPS.