Uninterruptible Power Supply Legrand Keor DK 3 kVA 7 min (model 311342)

Legrand Keor DK 3 kVA 7 min is an uninterruptible power supply designed to provide short-term backup power and voltage regulation for critical equipment. With a rated capacity of 3 kVA and approximately seven minutes of runtime at the specified load, this UPS supplies clean, conditioned power to permit orderly shutdowns, maintain operation of essential devices during brief outages and protect connected equipment from surges, sags and frequency variations.

Advantages

The UPS integrates automatic voltage regulation and battery backup in a compact form factor suitable for small server rooms and network closets. It delivers a stable output waveform and fast transfer time to battery in the event of mains failure, helping prevent data loss and hardware damage. Built-in diagnostics and status indicators simplify monitoring and maintenance, while internal batteries provide the necessary autonomy for controlled shutdowns or short-term continued operation.

Подходит для

• Small rack or tower servers
• Network switches, routers and firewalls
• Storage devices and NAS systems
• Workstations running critical applications
• Telecommunications and monitoring equipment

Key specifications

• Rated capacity: 3 kVA
• Approximate runtime at specified load: 7 minutes
• Topology: line-interactive or on-line (as applicable to model)
• Battery type: internal sealed lead‑acid battery
• Output waveform: stepped or pure sine wave depending on configuration
• Voltage regulation: automatic voltage regulation (AVR)
• Transfer time: rapid transfer to battery on mains failure
• Form factor: tower or rack-mount convertible (model dependent)

How to use

Install the UPS on a stable surface or in the rack according to the manufacturer’s installation guidelines, ensuring adequate ventilation and clearance. Connect the UPS input to a properly grounded mains outlet of the correct voltage and frequency. Plug critical equipment into the UPS output outlets and power on the UPS. Configure any available monitoring software or network management interface to receive status alerts. Test the unit under controlled conditions to verify battery runtime and proper transfer to battery before relying on it for emergency use.

Рекомендации по использованию

For reliable performance, maintain the UPS in a temperature-controlled environment, perform regular battery self-tests and replace batteries according to the manufacturer’s service intervals. Avoid connecting non-essential or high inrush devices that may reduce backup time. Keep firmware and monitoring tools up to date and schedule periodic load tests to confirm expected runtime under real conditions.