The APC Smart-UPS 750VA 230V (SUA750I), manufactured by Schneider Electric, is a reliable line-interactive uninterruptible power supply (UPS) designed for home offices, small businesses, and basic IT setups. Known for its durability and cost-effective power protection, it safeguards workstations, networking equipment, and sensitive electronics from power disruptions. In this blog, we’ll explore the specifications, features, performance, and ideal use cases of the SUA750I to help you decide if it’s the right UPS for your needs.
Overview
The APC Smart-UPS 750VA is part of the renowned Smart-UPS series, delivering 500W/750VA of line-interactive power protection. Its compact tower design, automatic voltage regulation (AVR), and straightforward management features make it ideal for protecting small servers, routers, and workstations. Although discontinued in favor of newer models like the Smart-UPS C or SRT series, the SUA750I remains popular in secondary markets for its affordability and reliability, particularly for budget-conscious users.
Key Specifications
- Power Capacity: 500W / 750VA
- Input Voltage: 230V (adjustable for 220V or 240V)
- Output Voltage: 230V
- Output Voltage Distortion: Less than 5% at full load
- Output Frequency: 47–53 Hz for 50 Hz nominal (sync to mains)
- Topology: Line-Interactive
- Waveform Type: Sine Wave
- Output Connections: 6x IEC 320 C13, 2x IEC Jumpers
- Input Connection: IEC 320 C14
- Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte
- Runtime: ~7.1 minutes at full load (500W); ~23.6 minutes at half load (250W)
- Recharge Time: ~3 hours
- Dimensions: 13.7 x 5.4 x 7.1 inches (363 x 138 x 180 mm)
- Weight: 29.8 lbs (13.6 kg)
- Efficiency: Up to 95% in normal operation
- Interface Ports: DB-9 RS-232, SmartSlot, USB (via adapter)
- Noise Level: ~45 dB
- Certifications: C-Tick, CE, EN 50091-1, EN 50091-2, VDE
- Warranty: 1-year warranty
- Additional Features: Automatic Voltage Regulation (AVR), LED status display
Design and Build
The APC Smart-UPS 750VA features a compact, tower-only design, making it ideal for placement on a desk, shelf, or floor in small offices or home setups. Measuring 13.7 x 5.4 x 7.1 inches and weighing just 29.8 lbs, it’s lightweight and easy to integrate into tight spaces. The durable plastic and metal chassis ensures longevity, while the front-panel LED status display provides clear indicators for power, battery, and fault conditions. Operating at ~45 dB, it’s quiet enough for noise-sensitive environments like home offices.
The unit includes a SmartSlot for optional accessories, such as a network management card (e.g., AP9630), though not pre-installed. The lack of a rack-mount option limits its use in rack-based setups, but its small footprint and simple design prioritize ease of use and affordability for standalone applications.
Performance
The SUA750I employs line-interactive topology with AVR, correcting voltage fluctuations (151–302V input range) without switching to battery power, thus preserving battery life for outages. It delivers a pure sine wave output, ensuring compatibility with sensitive equipment like workstations, routers, and small servers with active PFC power supplies. With up to 95% efficiency in normal operation, it minimizes energy waste, making it cost-effective for small-scale applications.
The UPS provides approximately 7.1 minutes of runtime at full load (500W) and 23.6 minutes at half load (250W), with a 3-hour recharge time. While it does not support external battery packs for scalable runtime, the internal battery is sufficient for short outages or graceful shutdowns. The AVR feature stabilizes voltage, making it ideal for regions with inconsistent power grids.
Features
Power Protection and Efficiency
- Line-Interactive Topology: Uses AVR to correct voltage fluctuations, extending battery life.
- Pure Sine Wave Output: Ensures compatibility with sensitive electronics and modern power supplies.
- Automatic Restart: Restarts connected equipment after power restoration.
- Cold-Start Capability: Allows the UPS to power up without input power, useful during outages.
Management and Monitoring
- LED Status Display: Provides at-a-glance information on power, battery, and fault status.
- PowerChute Business Edition: Enables graceful shutdown and power management via RS-232 or USB (with adapter).
- SmartSlot: Supports optional network management cards for remote monitoring.
- Audible Alarms: Alerts for power events, low battery, or faults, with mute options.
Serviceability
- Hot-Swappable Batteries: Allows battery replacement without powering down equipment.
- Battery Failure Notification: Provides early warnings for proactive maintenance.
- User-Replaceable Batteries: Simplifies battery swaps, reducing downtime.
Pros and Cons
Pros
- Reliable Power Protection: Line-interactive topology with AVR ensures stable power.
- Pure Sine Wave: Compatible with sensitive electronics and active PFC devices.
- Compact and Lightweight: At 29.8 lbs, it’s easy to place in small spaces.
- High Efficiency: Up to 95% efficiency reduces operating costs.
- Quiet Operation: ~45 dB suits home offices and small businesses.
Cons
- No Rack-Mount Option: Tower-only design limits deployment flexibility.
- No Scalable Runtime: Does not support external battery packs.
- Basic Interface: LED display is less intuitive than modern LCD interfaces.
- No Network Card Included: Remote monitoring requires additional purchase.
Applications
The APC Smart-UPS 750VA is ideal for:
- Home Offices: Protects workstations, NAS devices, and high-end PCs.
- Small Businesses: Safeguards small servers, routers, and networking gear.
- Network Closets: Ensures uptime for modems, switches, and VoIP systems.
- Retail: Supports point-of-sale systems and basic inventory management.
- Education: Powers individual workstations or small computer labs.
Its compact size, quiet operation, and reliable performance make it suitable for environments with limited space and modest power demands.
Conclusion
The APC Smart-UPS 750VA 230V (SUA750I) is a dependable, budget-friendly UPS tailored for home offices, small businesses, and basic IT setups. Its line-interactive topology, pure sine wave output, and AVR ensure reliable power protection for workstations, networking equipment, and sensitive electronics. Despite being a discontinued model, its durability, compact design, and affordability make it a popular choice in secondary markets. For users needing simple, cost-effective power backup without the complexity of enterprise-grade UPS systems, the SUA750I delivers exceptional value and peace of mind.
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