3S550DIN Eaton 550VA Offline (Standby) UPS/USV

Compact Standby UPS for Edge and Small-Office Continuity with the 3S550DIN

The 3S550DIN is a single-phase offline (standby) UPS engineered to keep essential endpoints online during short outages while providing surge protection for connected equipment. As an entry-class power continuity layer, the 3S550DIN is suited to workstation, edge IT, and small network-closet loads where clean shutdown time and protection against voltage transients are the primary architectural goals.

With 550VA/330W capacity, the 3S550DIN prioritises fast transfer to battery for brief mains interruptions and supports predictable runtime planning, including approximately 9 minutes at 50% load. Its AC distribution design separates battery-backed outputs from surge-only outlets, enabling engineers to align critical and non-critical devices without additional power strips. The 3S550DIN integrates via standard mains connectivity and Schuko outputs for straightforward deployment in branch offices, retail back rooms, and telecom cabinets where space and cabling simplicity matter.

Why Choose the 3S550DIN?

The 3S550DIN delivers a practical density-to-protection balance for non-critical systems by combining backup power, surge suppression, and a clear outlet segmentation strategy in a compact tower format. For distributed environments, the 3S550DIN supports repeatable rollouts, reduces downtime exposure for single endpoints, and provides a scalable building block for basic resiliency across multiple small sites.

Eaton designs UPS platforms with a focus on electrical safety, consistent power quality, and operational reliability aligned with modern data centre and edge standards. The 3S series follows IEC compliance expectations and reflects Eaton’s engineering discipline for dependable protection in mixed IT and office power environments.

Key Applications:

• Workstations and single endpoints
• Modem, router, and switch continuity
• Branch office peripheral protection
• Edge IT micro-deployments

At Happyware - Server Hardware you benefit from non-binding offers tailored to your rollout quantities for the 3S550DIN, enabling consistent procurement across sites, and you can extend the warranty up to 6 years to secure long-term protection for your distributed UPS investment.