```html Low Frequency UPS 200KVA-400KVA

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Low Frequency UPS 200KVA-400KVA

Low Frequency UPS 200KVA-400KVA

HQ33 Series · Industrial backup online UPS (low frequency transformer-based design) · 3 Phase In / 3 Phase Out.

Models: HQ33200L / HQ33250L / HQ33300L / HQ33400L
Input / Output
380/400/415VAC · 3 Phase + N + PE
Efficiency
≥93% @ 100% load
THDu
<2% (linear) · <5% (non-linear)
Transfer time
0 ms
Parameter Value
SeriesHQ33
Capacity200kVA / 250kVA / 300kVA / 400kVA
Input related voltage380/400/415VAC, 3 Phase + N + PE
Input voltage range±25%
Input rated frequency50/60Hz (auto-sensing)
Input frequency range40–70Hz
Bypass rated voltage380/400/415VAC
Bypass frequency range±10% (±5% configurable)
Bypass rated frequency50/60Hz
Inverter/Bypass switch0 ms
Output power factor0.9
Output rated voltage380/400/415VAC, 3 Phase + N + PE
Phase voltage220V (configurable 200–244V)
Crest factor3:1
THDu<2% @ 100% linear load; <5% @ 100% non-linear load
Voltage accuracy±1%
Transient response±5% < 10ms
Overload125%: 10 min; 150%: 1 min
Efficiency≥93% @ 100% load
Battery voltage360–408V (30–34 units configurable), no neutral wire
CommunicationRS232, RS485; optional: dry contact, SNMP
Display7" color touch screen (multi-language)
Operating temperature-10–40°C
Humidity0–95% (non-condensing)
Altitude<1000m no derate; >1000m derating 1% per 100m
Noise≤65 dB @ 1m
Minimum order85

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