nJoy 800VA / 480W Uninterruptible Power Supply (UPS) Specifications
This document outlines the typical electrical and physical characteristics for a compact nJoy 800VA UPS, suitable for home office equipment, single PCs, and networking devices (modems, routers).
1. Power and Performance
| Parameter |
Specification |
Notes |
| VA Rating |
800VA![]() |
Apparent Power |
| Watt Rating |
480W![]() |
True Power (Assumes PF=0.6) |
| UPS Topology |
Line-Interactive |
Provides voltage regulation and battery backup. |
| Waveform (Battery Mode) |
Simulated Sine Wave |
Stepped approximation of sine wave; suitable for most standard PC power supplies. |
| Transfer Time |
2−6 ms (Typical) |
Time to switch from utility power to battery power. |
| Overload Protection |
Yes |
Shutdown protection against excessive load. |
2. Input Specifications
| Parameter |
Specification |
| Nominal Input Voltage |
220V/230V/240V AC![]() |
| Input Voltage Range |
162−290V AC![]() |
| Nominal Input Frequency |
50Hz/60Hz (Auto-sensing) |
| Input Connection |
Standard AC Power Cord (Schuko or relevant regional plug) |
3. Output Specifications
| Parameter |
Specification |
| Nominal Output Voltage |
230V AC![]() |
| Output Voltage Regulation |
±10% on battery |
| Output Sockets |
2−4 Universal Sockets or IEC C13 (Typical) |
| Automatic Voltage Regulation (AVR) |
Built-in boost and buck AVR to stabilize voltage. |
4. Battery and Runtime
| Parameter |
Specification (Typical) |
| DC Voltage |
12V DC![]() |
| Battery Type |
1×12V/7Ah Sealed Lead-Acid (Internal, non-user replaceable) |
| Typical Runtime (Half Load) |
8−12 minutes![]() |
| Typical Runtime (Full Load) |
1−3 minutes![]() |
| Recharge Time |
4−6 hours to 90% capacity |
5. Physical and Environmental
| Parameter |
Specification |
| Form Factor |
Compact Mini-Tower |
| Display |
LED Indicators or Small LCD (Shows status, voltage, and battery charge) |
| Dimensions (H×W×D) |
≈200×100×300 mm (Varies) |
| Weight |
≈4−6 kg![]() |
| Noise Level |
<40 dBA (Silent operation under normal conditions) |
6. Communication and Protection
| Feature |
Description |
| Communication Port |
USB or dedicated RJ11 (Varies by model) |
| Protection |
Overload, Short-Circuit, Over-Discharge, Overcharge. |
| Indicators |
Utility power, battery mode, fault, low battery. |
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