ET50K 3 phase low frequency uninterruptible power supply ups 50kva is the perfect three-phase gray space solution for modern data centers. The 3 phase online ups 50kva is connected between the mains and critical loads to supply high-quality power to the loads.
The 3-Phase 380/400/415V 20kVA 20kW On-Line Double-Conversion UPS with IGBT technology provides battery backup and AC power protection against power disturbances.
Prostar ET-PLUS series design allows continuous operation at any supported voltage at either 50 or 60 Hz. Zero transfer time to battery mode ensures no disruption to the attached loads. Automatic and Manual Bypass keeps connected equipment powered even during overloads and UPS maintenance.
Whether for a large data center, medical facility or educational institution, the efficiency provided by ET50K 3 phase low frequency uninterruptible power supply ups 50kva can play a vital role in any low maintenance, ten-year power solution.
Prostar ET50K 3 phase low frequency uninterruptible power supply ups 50kva is compatible with lithium-ion UPS batteries, which are 40 percent smaller than VRLA batteries and have twice the lifespan, saving money on battery replacement costs and extra square footage for battery cabinets.
This IGBT UPS benefits from highly efficient transformer-free double-conversion technology that delivers operating cost savings. It achieves 93% efficiency in double-conversion mode and up to 98% in ECO mode, reducing your power and cooling costs.
UPS 50KVA Details
ET Series Online UPS 7-inch LCD Touch Screen
ET Series Online UPS Front Panel
3 Phase Online UPS Rear Panel
3 Phase Online UPS Communication Interface
50KVA UPS Specification
| Model | ET50K |
| Capacity | 50KVA/50KW |
| Topology | Double conversion online |
| Noise | <65dBA front side 1M |
| Dimension(WxDxH mm) | 600x700x1600 |
| Weight(Kgs) | 320 |
| INPUT | |
| Input Rated Voltage | 3P + N + PE, 380Vac/400Vac/415Vac(Default 380Vac) |
| Input Voltage Range | 304Vac - 456Vac |
| Input Rated Frequency | 50Hz/60Hz (Auto) |
| Input Frequency Range | 40Hz - 70Hz |
| Input Power Factor | >0.95 |
| Input Current Limit | 1.25 times Rated INPUT Current (Settable 0.1 - 1.25) |
| THDI | < 3% full load |
| BYPASS INPUT | |
| Bypass Input Voltage Range | 304Vac - 456Vac |
| Bypass Input Voltage Regulation | Upper Limit: default 20% (Settable 10%/15%/20%/25%) Lower Limit: default 20% (Settable 10%/20%/30%/40%/50%/60%) |
| OUTPUT | |
| Output Rated Voltage | 3P + N + PE, 380Vac/400Vac/415Vac ± 1% |
| Output Voltage Regulation | 0V(Settable ±1V- ±5V) |
| Output Frequency | Mains Mode: tracking BYPASS Input in synchronized state Battery Mode: 50Hz/60Hz±0.01% |
| Output Power Factor | 1 |
| Total Harmonic Distortion (THDU) | < 2% at 100% linear load; < 5% at 100% non-linear load |
| Overload Capacity | Supports up to 105% load continuously in double conversion; 105% - 110% load for 60 minutes switching to bypass output; 110% - 125% load for 10 minutes switching to bypass output; 125% - 150% load for 1 minute switching to bypass output; greater than 150% load for 200 milliseconds switching to bypass output |
| Crest Factor | 3:1 |
| Wave Form | Pure sine wave |
| Transfer Time | 0ms |
| ECO MODE | |
| Bypass Output Voltage Regulation | Upper Limit: default 5% (Settable 5%/10%/15%) Lower Limit: default 5% (Settable 5%/10%/15%) |
| Bypass Output Frequency Regulation | Default ±2Hz (Settable ±1Hz/±2Hz/±3Hz) |
| EFFICIENCY | |
| Efficiency at full load (AC-AC) | >93% |
| Efficiency at ECO Mode | >98% |
| BATTERY | |
| Battery Type | Support VRLA Battery, (Lithium-ion Battery Option) |
| Battery Voltage | Default 360Vdc (Settable 336VDC/348VDC/372VDC/384VDC) |
| Battery Charging Current | Charging Rate * Battery Capacity * Group of Battery (Settable for charging rate, battery capacity and group of battery) |
| SYSTEM | |
| Protection | Output short circuit protection, output overload protection, over-temperature protection, low battery voltage protection, output overvoltage / undervoltage protection, fan failure protection |
| IP Protection | IP30 |
| Number of Parallel | < 8 Units |
| Cooling Method | Fans |
| Display | 7-inch LCD Touch Screen |
| Audible Alarm | Audible and visible alarms prioritized by severity |
| ENVIRONMENT | |
| Operating Temperature | 0℃ to 40℃ (32F-104F) |
| Humidity | 0~95% (non-condensing) |
| Altitude | < 1000m (Capacity de-rates by 1% for every 100m over 1000m) |
| Storage Temperature | -20℃ to 70℃ |
| COMMUNICATION | |
| Communication Interface | Default: RS232/RS485/USB/Dry Contact/EPO (Option: Battery Temperature Compensation) |
| Communication Slot | SNMP/Web interface |
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