Sai Guardian 800 - Inverter CoolBox - Free user manual and instructions
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| Product Type | Line Interactive UPS / Inverter |
| Model | Sai Guardian 800 |
| Brand | CoolBox |
| Capacity | 800 VA / 480 W |
| Input Voltage | 220-240 V AC, 50/60 Hz |
| Output Voltage | 230 V AC ± 10% (battery mode) |
| Waveform | Simulated sine wave |
| Transfer Time | 4-8 ms typical |
| Battery Type | Sealed lead-acid, 12 V / 7 Ah |
| Charging Time | 6-8 hours to 90% capacity |
| Outlets | 2 x IEC 320 C13 (UPS + surge) |
| Protection | Surge protection, overcharge protection, short circuit protection |
| Dimensions (W x D x H) | 300 x 100 x 150 mm |
| Weight | 5.2 kg |
| Operating Temperature | 0°C to 40°C |
| Relative Humidity | 20% to 90% non-condensing |
| Noise Level | < 40 dB at 1 m |
| Warranty | 2 years (battery: 1 year) |
| Maintenance | Keep vents clean; avoid moisture; replace battery every 3-5 years |
| Repairability | Battery user-replaceable; other repairs by qualified technician |
| Included Accessories | User manual, power cord, telephone line cable (RJ11) |
Frequently Asked Questions - Sai Guardian 800 CoolBox
How long does the Sai Guardian 800 provide backup power?
Runtime depends on load. At full load (480 W), approximately 5-10 minutes. At half load (240 W), approximately 15-25 minutes. For precise runtime, refer to the load vs runtime chart in the manual.
Can I replace the battery myself?
Yes, the battery is user-replaceable. Open the bottom cover, disconnect the terminals, and install a new 12V 7Ah sealed lead-acid battery. Ensure proper disposal of the old battery.
Why is the UPS beeping constantly?
Common causes: battery not connected, low battery, or overload. Check battery connections, allow battery to charge for 6-8 hours, or reduce connected devices. If beeping persists, it may indicate a faulty battery or internal issue.
What devices can I connect to the Sai Guardian 800?
It is designed for sensitive electronic equipment like computers, monitors, networking devices, and gaming consoles. Do not connect laser printers, air conditioners, or high-power appliances exceeding 480 W.
Does the UPS protect against phone line surges?
Yes, it includes RJ11 surge protection for telephone/fax/DSL lines. Connect the phone line from the wall to the UPS and then to your device.
How do I perform a self-test?
Press and hold the Test button for 2 seconds. The UPS will switch to battery mode briefly. If the battery is weak, it will beep and indicate a replacement needed.
What is the warranty period and how to claim?
Standard warranty is 2 years for the unit and 1 year for the battery. To claim, contact CoolBox customer support with your purchase receipt. Do not open the unit yourself as it may void warranty.
Can I use the UPS without a battery?
No, the UPS requires a battery to function. Without battery, it will not provide backup power and may not turn on. The battery is essential for voltage regulation and surge protection.
What do the indicators mean?
Green LED: AC normal. Amber LED: battery mode or low battery. Flashing red: battery fault or overload. Refer to the manual for indicator patterns.
Is the Sai Guardian 800 suitable for outdoor use?
No, it is designed for indoor use only in a clean, dry environment. Keep away from direct sunlight, heat sources, and moisture. Operating temperature: 0°C to 40°C.
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USER MANUAL Sai Guardian 800 CoolBox
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Product information
Brand : CoolBox
Model : Sai Guardian 800
Category : Inverter