VECHO VEC-LT800VA-1291 Line-Interactive UPS 800VA / 480W
- • Capacity: 800 VA / 480 W line-interactive UPS for computer power protection
- • Voltage Stabilization: Boost-and-buck AVR with a wide 140–300 VAC input range
- • Battery: 12 VDC system with one 9 Ah battery and 4–6 hour recharge to 90%
- • Response: Typical 4–8 ms transfer time with simulated sinewave battery output
- • Protection: Short-circuit, overload, overcharge and over-discharge protection
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- Availability:
- In Stock
- Product Code:
- VEC-LT800VA-1291
- Brand:
- VECHO
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The VECHO VEC-LT800VA-1291 is a compact line-interactive uninterruptible power supply designed for personal computer installations and limited working environments. It provides a rated capacity of 800 VA / 480 W with simulated sinewave output during battery operation.
Its integrated boost-and-buck automatic voltage regulation helps stabilize a wide 140–300 VAC input range. The UPS also supports cold start, automatic restart when AC power recovers, off-mode charging and intelligent battery recharging.

Key Features
- 800 VA / 480 W Capacity: Provides backup power and protection within the stated VA and watt limits.
- Line-Interactive Operation: Uses simulated sinewave output while operating from the battery.
- Automatic Voltage Regulation: Two boost stages and one buck stage help stabilize incoming AC voltage.
- Wide Input Range: Supports an operating voltage range of 140–300 VAC at 50/60 Hz with automatic sensing.
- Cold Start and Auto Restart: Can start without an AC supply and automatically restart when mains power returns.
- Integrated Protection: Includes short-circuit, overload, overcharge and over-discharge protection.
Technical Specifications
| Component | Specification |
| Brand | VECHO |
| Model | VEC-LT800VA-1291 |
| Product Type | Line-Interactive UPS |
| Capacity | 800 VA / 480 W |
| Nominal Input Voltage | 230 VAC |
| Operating Voltage Range | 140–300 VAC |
| Operating Frequency | 50/60 Hz, auto sensing |
| Battery-Mode Voltage Regulation | ±10% |
| Battery-Mode Frequency | 50/60 Hz ±1 Hz |
| Transfer Time | Typical 4–8 ms; 13 ms maximum |
| Battery-Mode Waveform | Simulated sinewave |
| Battery Voltage | 12 VDC |
| Battery Configuration | 9 Ah × 1 |
| Recharge Time | 4–6 hours to recover 90% capacity |
| Voltage Regulation | Two boost stages and one buck stage AVR |
| Operating Functions | Cold start, auto restart, off-mode charging and generator compatibility |
| Protection | Short circuit, overload, overcharge and over-discharge protection |
| Alarm Conditions | Battery mode, low battery, overload, battery replacement and fault |
| Humidity | 0–90% RH at 0–40°C, non-condensing |
| Noise Level | Less than 45 dB |
| Dimensions | 298 × 101 × 142 mm |
| Weight | 4.9 kg |
Compatibility & Important Information
Connected equipment should remain within both the 800 VA apparent-power rating and the 480 W active-power rating. During battery operation, the UPS provides a simulated sinewave output.
The product family is offered with LED or LCD display selections, different output socket configurations and optional USB or RS232 communication with RJ11/RJ45 protection. The product photographs and listed connections should match the exact version stocked by CityCenter.
Q: What is the power capacity of the VECHO VEC-LT800VA-1291?
A: It has a rated capacity of 800 VA / 480 W.
Q: What type of UPS is this model?
A: It is a line-interactive UPS with boost-and-buck automatic voltage regulation.
Q: What input voltage range does it support?
A: Its specified operating input voltage range is 140–300 VAC, with a nominal input voltage of 230 VAC.
Q: What waveform does it provide during battery operation?
A: The UPS provides a simulated sinewave output while operating from its battery.
Q: What battery is used in the 800 VA model?
A: The VEC-LT800VA-1291 uses one 12 V, 9 Ah battery.
Q: How long does the battery take to recharge?
A: The typical recharge time is 4–6 hours to recover 90% battery capacity.
Q: Can the UPS start without mains power?
A: Yes. It supports a cold-start function that allows it to start without an AC power supply.
Q: Are USB communication and network protection included on every version?
A: USB or RS232 communication and RJ11/RJ45 protection are optional features within this UPS family and depend on the selected version.



















