Pure sine wave DC/AC inverter VT-HF220S220-1KVA

AC voltageACsingle-phase

Overview
Rack-mounted high-frequency pure sine wave inverter VT-HF220S220-1KVA converting 220V DC battery input to 220V AC output. Capacity: 1 kVA (800 W). Standard 19-inch 2U enclosure. Designed for telecommunication and critical equipment backup.

Applications

• Telecommunication base stations and network equipment
• Server cabinets and IT infrastructure
• Remote sites and industrial control systems
• Standby power for critical loads

Key features

• Pure sine wave output (THD ≤ 3% at linear load)
• Auto transfer between DC inverter and AC bypass in <5 ms; inverter↔bypass transfer ≤8 ms
• Large 128×64 LCD plus 4 LED status indicators; records historical alarms
• Five dry-contact outputs for system signals (DC input fault, AC input fault, overload, bypass, output fault)
• RS232 and RS485 communication; optional SNMP for remote monitoring
• Automatic restart on AC/DC recovery and temperature-controlled fan
• Built-in voltage regulation and multiple protections (short-circuit, overload, battery over/under voltage, over-current, over-temperature)

Technical specifications

• Model: VT-HF220S220-1KVA
• DC input: rated 220 Vdc; range 180–275 Vdc (recovery 208–260 V)
• Bypass AC input: 170–270 Vac (±10 V)
• AC output: 220 Vac, 50/60 Hz selectable; rated 800 W (1 kVA)
• Output current: 3.6 A; voltage accuracy ±1.5%; frequency accuracy ±0.1%
• Power factor: 0.8; THD ≤3%; dynamic response 5% (0↔100% load)
• Efficiency (at 80% load): ≥85%
• Overload capability: 100–120% for 60 s; 121–150% for 10 s

Environment, dimensions & indicators

• Operating temp: -20℃ to +50℃; humidity 0–90% (no condensation); altitude ≤2000 m
• Noise ≤55 dB at 1 m
• Dimensions (W×D×H): 482 × 347 × 88 mm (19-inch 2U); package 562 × 492 × 195 mm
• Net/Gross weight: 8.00 kg / 10.00 kg
• LCD displays input/output voltage, frequency, output current, temperature, capacity, and alarm status

Protections

• Input under/over-voltage protection
• Output overload and short-circuit protection
• Battery over-voltage / under-voltage protection
• Over-current and over-temperature protection