ET50K 3 phase low frequency uninterruptible power supply ups 50kva

3 Phase UPS | 50KVA/50KW | 380V/400V/415V | Battery Voltage: 360Vdc (Settable 336VDC/348VDC/372VDC/384VDC)

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.

ET ups uninterruptible power supply 10kva - 120kva

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 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 uninterruptible power supply UPS LCD Display

ET Series Online UPS  7-inch LCD Touch Screen

ET uninterruptible power supply UPS 40kva - 60kva front real

ET Series Online UPS  Front Panel

ET uninterruptible power supply UPS 40kva - 60kva real

3 Phase Online UPS  Rear Panel

ET uninterruptible power supply UPS communication interface

3 Phase Online UPS  Communication Interface

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1. Total cost of Ownership

1.1 Wide input voltage range and frequency range

Designed for harsh electrical environments to save battery life, and suitable for fuel generators or other power generation equipment.

1.2 ECO mode

Operating mode that ensures ultra-high efficiency while charging the batteries, conditioning the load power factor, and ensuring a Class 1 output voltage regulation.

1.3 Excellent footprint

Small UPS footprint provides maximum usage of valuable electrical room floorspace.

1.4 High efficiency

High efficiency rates that remain stable even at lower operating power levels.

2. Convenience

2.1 Bottom cable entry

Allows cabling from the bottom without the need of additional cabinets providing footprint savings and flexibility to the installation.

3. Availability

3.1 Most advanced and high frequency DSP technology

The high-performance DSP provides UPS more accurate measurements of output voltage and currents, also Fast response to overload and over-voltage conditions.

Online UPS DSP Control Module

3.2 Super overload capacity

Long-time working under the load of less than 105%; switching to the bypass in 10min under the load of 105% (inclusive) to 125%; switching to the bypass output in 1min under the load of 125% (inclusive) to 150%.

3.3 Frequency and voltage regulation

Gives higher application availability by correcting poor frequency and voltage conditions without using the battery.

3.4 Advanced electrical features

Excellent power conditioning, very low harmonic distortion through IGBT rectifier, input power factor correction, and high-power efficiency.

3.5 Parallel-redundant capable

Power the connected equipment with multiple uninterruptible power supplies to increase system redundancy and share the common battery packs to reduce the cost. All parameters of the system can be set and adjusted through software. The current sharing adjustment of each UPS can also be completed automatically.

UPS Redundant Parallel Connection

3.6 Flexible design

Available in a wide range of configurations to suit any operating environment, like suitable for various loads: inductive, capacitive, non-linear, etc.

3.7 Generator compatible

Ensures clean, uninterrupted power to protected equipment when generator power is used.

3.8 Dual mains input

Increases availability by allowing the UPS to be connected to two separate power sources.

3.9 Cold start and mains start without battery

In the abnormal state of the utility power, the UPS can be started directly with the battery to meet emergency needs.
When there is no battery, the UPS can be started directly from the mains and can be used as a high-precision regulated power supply.

3.10 Intelligent battery management

Adopt intelligent battery management function (ABM) technology to reduce the frequency of battery maintenance. The advanced constant current and constant voltage automatic conversion charging technology can activate the battery to the maximum and save charging time. Battery capacity prediction, discharge time estimation, low voltage pre-alarm.

3.11 Protection

Various protections such as surge protection and short-circuit protection are available to ensure the reliability of UPS. It is equipped with battery overvoltage, overcharge, and other protection functions to protect the battery from damage to the greatest extent.

3.12 Lithium-ion batteries compatible

It must be set up separately, not included in the standard configuration.

4. Manageability

4.1 LCD graphics touch screen display

Full color text and mimic diagrams that easily display modes of operation, systems parameters, and alarms.

4.2 Audible alarms

Provides notification of changing utility power and UPS power conditions.

4.3 Multi-communication Interface

It offers RS232, USB, RS485, CAN, NET, input and output dry contacts, SNMP board, WIFI board, GPRS board and 4G board to monitor the operating status of UPS.

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