Eaton 5P1550GR – 1U Rack UPS 1550 VA/1100 W Line‑Interactive

Overview :

The Eaton 5P1550GR is a 1U rackmount uninterruptible power supply (UPS) engineered to protect critical IT and networking equipment against utility power disturbances such as sags, surges, and short interruptions. It is deployed by data center operations, network engineers, and systems administrators to ensure continuity of power for servers, storage, telecom gear, and edge networking devices where clean, conditioned power is mandatory. The unit’s line‑interactive topology supports seamless transition to battery during power anomalies without requiring expensive double‑conversion designs where full online operation isn’t justified.

From a deployment capability perspective, this UPS provides 1550 VA / 1100 W output with six IEC C13 receptacles and a 230 V nominal output range adjustable across 200 V–240 V distributions. The integrated lead‑acid battery pack delivers true sine wave AC output at 50/60 Hz, maintaining stable conditioned power to connected loads, and includes ABM battery management that extends battery life and signals when replacement is recommended.

The 1U rack form factor and included mounting hardware make this UPS suitable for rack‑adjacent deployments such as server closets, telecom IDF/MDF spaces, branch office racks, and remote network closets. Its shallow 21.8 in depth fits standard 19‑inch racks while leaving space for cabling and other 1U devices.

Integration aligns with industry standards for UPS communications and monitoring. It includes USB (HID) and RS‑232 ports as standard, enabling graceful shutdown and event logging with Eaton Intelligent Power Manager software or third‑party power management solutions. An optional network management card can be installed for SNMP‑based network monitoring and alerting on UPS state changes.

In a practical deployment scenario, the 5P1550GR maintains uptime for a small rack of virtualization hosts or a cluster of network switches during short power disruptions, providing time for orderly shutdown or generator transfer. Battery runtime at half load typically spans minutes long enough to complete shutdown scripts or sustain load until backup generators take over.

This unit should not be used where higher‑capacity UPS solutions (e.g., >3 kVA) or online double‑conversion topology are required for extremely sensitive equipment or heavily distorted electrical environments. It also lacks extended battery module support, making it less suited for long autonomy requirements.

Key Features

• 1550 VA / 1100 W line‑interactive UPS
• (6) IEC C13 output receptacles
• True sine wave output and voltage regulation
• USB HID + RS‑232 ports for monitoring
• Rack 1U form factor with included hardware