DAHUA 800VA UPS

Description

Dahua 800VA UPS (DH‑PFM350‑480‑A) – Reliable Backup for CCTV, Routers & Essential Devices (2 Ports, 480 W)

The Dahua 800VA UPS is engineered for users who demand robust, dependable power continuity in environments like CCTV setups, routers, modems, and essential electronics. This line-interactive, tower-form UPS blends advanced voltage regulation, swift switchover, and compact design, making it an ideal solution for homes, small offices, retail points, or surveillance systems.

📌 Why the Dahua 800VA UPS Stands Out

✅ Adaptable Voltage Tolerance

The unit operates across a wide input voltage range of 150–275 VAC, ensuring resilience against unstable power and accommodating regional grid variations

✅ Clean Voltage with AVR

Integrated Automatic Voltage Regulation (AVR) continuously stabilizes voltage output (±10%), helping maintain stable power without draining the battery unnecessarily

✅ Rapid Power Switching

When an outage or power anomaly occurs, the Dahua 800VA UPS switches to battery backup in under 10 ms, reducing risks of data loss, DVR rebooting, or Wi‑Fi dropping

✅ Cold-Start Capability

Unique to Dahua’s unit, the Dahua 800VA UPS supports cold-start, allowing devices to power on from battery even when the mains line is off — a lifesaver during long outages

✅ Self-Protecting Mechanisms

Comprehensive safeguards protect the Dahua 800VA UPS from overload, deep discharge, and overcharging, preserving battery life and extending unit longevity

✅ Compact & Efficient

With dimensions of 335 × 87 × 143 mm and a net weight around 5 kg, it’s small enough to place beside CCTV systems, routers, or tight shelving while remaining durable

📋 Technical Specifications – Bullet Form

• Capacity: 800 VA / 480 W (380 W on battery backup)

• UPS Topology: Line-interactive with AVR

• Input Voltage Range: 150–275 VAC, 50/60 Hz; Power Factor 0.85

• Input Current: 2.3 A

• Output Voltage: 220 VAC ±10%; Output Frequency: 50/60 Hz

• Output Current: 2.1 A (mains), 1.7 A (battery)

• Switch Time: < 10 ms

• Waveform: Pure sine (mains); Modified sine (battery)

• Battery: 1 × 12 V, 9 Ah sealed lead-acid; charges to 90% in ~6 h at ≤ 2 A

• Indicators & Alarms:

  • LEDs signal mains, battery, charging, and fault status

  • Audible alarm: beeps every 6 s (battery), 1 s (low), 0.5 s (overload)

• Outlets: 2 × European-standard AC output ports

• Input Cable: 1 m

• Dimensions: 335 × 87 × 143 mm

• Weight: 5 kg (net); 5.6 kg (packaged)

• Operating Temperature & Humidity: 0–40 °C, 0–90% RH

• Certifications: CE certified

🧭 Ideal Use Cases

This Dahua 800VA UPS is meticulously designed for:

• CCTV/DVR/NVR Systems
  Keeps surveillance footage running long enough to complete recording routines or send alerts during power interruptions.

• Network Devices
  Ensures continuity for routers, modems, Wi‑Fi routers, and VoIP systems when power becomes unstable.

• Retail & POS Setups
  Safeguards checkout terminals, barcode scanners, receipt printers, and payment machines in micro-retail settings.

• Small Home Office Rigs
  Offers peace of mind for desktop PCs, laptops, VoIP phones, and essential peripherals during brief power cuts.

• IoT & Smart Home Gadgets
  Protects smart hubs, sensors, speakers, and smart locks from power surges and outages.

🧠 User Experience & Reputation Insights

While this Dahua 800VA UPS lacks built-in smart connectivity (like USB/Bluetooth or network interfaces), its performance and reliability garner praise for simplicity:

• Plug-and-play simplicity – install it near CCTV setups or routers with minimal configuration via clear indicator LEDs.

• Audible alerts and status LEDs keep users informed of battery usage, charging, low-power, or overload events.

• Community impressions (e.g., Icecat) describe it as a compact but efficient power backup solution suitable for essential electronics

• On the flip side, some considerations include:

• Limited runtime – rated backup is typically a few minutes under full load; ideal for orderly shutdown, not long-term usage.

• Stepped sine during battery operation – not perfectly matched to sensitive digital power supplies.

• No software management – purely self-contained; lacks remote shutdown, log analysis, or alarm scheduling.

✅ Pros & Cons

💡 Tips for Best Use

• Match your load – add up wattage of all devices; aim for ≤ 380 W to rely fully on battery mode and extend runtime.

• Ensure ventilation – placed in warm, poorly ventilated spots, battery charging may generate heat; allow airflow.

• Run periodic tests – use cold-start and simulate outages to check system health.

• Replace battery reactively – after 2 to 3 years or when runtime noticeably drops.

• Consider surge strips – add a surge-only outlet if more devices need protection but not backup.

🧾 Summary

The Dahua 800VA UPS delivers a reliable, no-frills UPS solution tailored to CCTV systems, essential routers/modems, and small office setups. Offering wide voltage tolerance, AVR, swift switchover, and cold-start capability, this UPS ensures continuity and protection for critical devices. Its compact size and durability make it suitable for space-constrained environments.

While lacking smart connectivity and limited in runtime, it shines in straightforward backup scenarios. Whether for peace of mind during unexpected outages or compliance with security cable setups, it makes a compelling, budget-friendly choice.

🔗 Useful Links

• 🌐 Official Dahua Product Page – DH‑PFM350‑480‑A

• 📄 Icecat Datasheet & Brochure (PDF)

• 🛒 Buy from Radox Technology Ltd (Internal Link)