S71 Line-Interactive UPS – Tower UPS with AVR (700–1500 VA, 120V)

The S71 Series is a line-interactive UPS designed for environments where both power outages and voltage fluctuations impact equipment performance.

It provides battery backup during outages while stabilizing input voltage through automatic voltage regulation (AVR), improving protection compared to standby UPS systems without the complexity of online double-conversion platforms.

Key Specifications

• 700 / 1000 / 1500 VA
• 120V single phase
• Line-interactive topology
• Automatic Voltage Regulation (AVR)
• Tower form factor
• Pure or simulated sine wave output (model dependent)
• VRLA battery system
• TAA compliant

Datasheet:
https://xpcc.com/wp-content/uploads/S71-flyer.pdf

Improved Power Stability for Distributed Systems

S71 is designed for environments where utility power is inconsistent and voltage fluctuations can impact equipment reliability.

Automatic voltage regulation (AVR) stabilizes input voltage without switching to battery, reducing battery wear while maintaining consistent output to connected devices.

This provides improved protection compared to standby UPS systems while maintaining simple deployment and cost-effective operation.

Where S71 Fits in Power Architecture

S71 operates as the enhanced entry-level UPS platform within distributed infrastructure.

Within the Xtreme Power architecture:

• Device-level UPS → A60 (standby)
• Enhanced entry → S71 (this platform)
• Rack-level UPS → P80
• Runtime-focused UPS → P91
• High-density UPS → J90

For architecture context:
https://xpcc.com/rack-power-architecture/

S71 vs Standby and Online UPS

S71 is designed for applications requiring more protection than standby UPS systems but not full online UPS performance.

Compared to standby UPS (A60), it adds voltage regulation and improves stability for connected equipment. Compared to online UPS platforms such as P91, it provides a simpler and more cost-effective solution where continuous power conditioning is not required.

Replace APC / Eaton Line-Interactive UPS

S71 is commonly deployed as a replacement for line-interactive UPS platforms including:

• APC Smart-UPS (SMT series)
• Eaton 5P UPS systems
• Vertiv Liebert PSI systems

It provides improved deployment consistency, TAA compliance, and stable voltage regulation for distributed environments.

Explore comparisons:
https://xpcc.com/s71-ups-comparisons/

Simple Deployment and Installation

S71 is designed for straightforward deployment in distributed environments.

The tower form factor allows installation alongside equipment without rack requirements, making it suitable for offices, retail environments, and field-installed systems.

Typical Applications

S71 is deployed across small network environments, retail and POS systems, AV equipment, security systems, and distributed IT infrastructure.

It is particularly well suited for applications where voltage fluctuations are common and improved power stability is required.

Capacity Guidance

Capacity selection is based on connected load:

• 700 VA → small network and edge devices
• 1000 VA → POS, AV, and distributed systems
• 1500 VA → larger device clusters and commercial equipment

S71 is designed for short-duration ride-through and voltage stabilization rather than extended runtime.

UPS sizing tool:
https://xpcc.com/selector

Xtreme Power Distributed UPS Portfolio

S71 defines the enhanced entry-level tier within the distributed UPS architecture:

• A60 → standby UPS (basic protection)
• S71 → line-interactive UPS with AVR
• P80 → rack-level UPS
• P91 → online UPS
• J90 → lithium high-density UPS

Technical Summary

Topology: Line-interactive
Capacity: 700–1500 VA
Voltage: 120V
Battery: VRLA
Form Factor: Tower
Function: Voltage regulation + battery backup

Plan With Confidence

Xtreme Power Conversion supports contractors, integrators, and infrastructure planners in selecting UPS solutions for distributed environments requiring improved power stability and reliable outage protection.

Phone: (800) 582-4524
Email: sales@xpcc.com