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Mean Well ES-SU3K-RH Uninterruptible Online UPS 8A

uninterruptible Online UPS
SKU ES-SU3K-RH
$321.83 USD
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Overview

ES-SU3K-RH is the 200/208/220/230/240Vac output model of this series: typical efficiency 97%. Type RH: Exterior structure.

ES-SU3K is a 3KVA online UPS power supply, providing rack type and tower type two appearance structures, using advanced digital control technology, combined with high integrated circuits and optimized design, enhance anti-interference ability, and ensure stable performance. The product has a full load efficiency of up to 94%, an input power factor of over 0.99, and a current harmonic of less than or equal to 5%, which can effectively prevent additional energy loss and reduce grid pollution. Its ultra-wide voltage input range is compatible with unstable power grids and fuel generators, which can easily cope with harsh power environments, reduce the need for frequent switching to battery power, and accurately match the needs of highly sensitive loads such as servers and medical equipment. In addition, the product has built-in EPO emergency power-off function and USB/RS-232 dual communication interfaces, which further strengthens the system security and remote control capabilities, It provides efficient, stable and flexible power protection solutions for key scenarios such as data centers, intelligent manufacturing, and communication base stations.

Features

  • Supporting connection to fuel generators
  • Ultra-wide input voltage range: 110V to 300Vac
  • Input power factor ≥ 0.99
  • Input current harmonic distortion ≤ 5%
  • Output power factor of 1
  • 50Hz/60Hz frequency conversion mode
  • Emergency power-off function (EPO)
  • USB/RS-232 communication interfaces
  • LCD display panel
  • Intelligent charging mode, adjustable charging current
  • 3-year warranty

Specifications

ES-SU3K-RHSpecifications from the official datasheet (2026-04-08 edition)

INPUT

Nominal Voltage
110~300Vac(Based on load at 50%); 160~300Vac(Based on load at 100%)
Frequency Range
40~70Hz
Power Factor
≥0.99@nominal voltage(100%load)
THDi
≤5%@100% resistive load

Battery

Connection Type
external
Charging Voltage (FV)
72V
Low-Voltage Protection Point
67.7V
High-Voltage Protection Point
90V
Charing Current (CC)
8A(1/2/4/6/8A adjustable through LCD)

OUTPUT

Power
3KVA/3KW
Output VoltageNote 1
200/208/220/230/240Vac
AC Voltage Regulation
±1%
Frequency AC Mode
47~53Hz/57~63Hz
Frequency Battery Mode
50/60±0.1Hz
Waveform Battery Mode
Pure Sinewave
Harmonic Distortion
≤2%THD(Linear Load); ≤5%THD(Non-linear Load)
Transfer Time AC to Battery
0
Transfer Time Online to Bypass
4ms(Typical)
Transfer Time ECO to Battery
8ms(Typical),10ms(max)
Efficiency ECO Mode@full charged battery
97%
Efficiency AC Mode @full charged battery
94%
Efficiency Battery Mode
91%

SAFETY & EMC

SAFETY STANDARDS
EN IEC 62040-1:2019/A11:2021,YD/T1095-2018
EMC EMISSION
ParameterStandardTest Level
Conducted emissionEN IEC 62040-2:2018C2
Radiated emissionEN IEC 62040-2:2018C2
Harmonic currentEN IEC 61000-3-12:2011Class A
Voltage flickerEN IEC 61000-3-11:2019Clause 5
EMC IMMUNITY
ParameterStandardTest Level
ESDEN 61000-4-2:2008Level 3, 4KV air; Level 2: 4KV contact
RSEN 61000-4-3:2006Level 3
EFTEN 61000-4-4:2012Level 4,1KV
SurgeEN 61000-4-5:2014Level 4,1KV/Line-Line 2KV/Line-Earth
ConductedEN 61000-4-6:2013Level 3
Magnetic FieldEN 61000-4-8:2009Level 4
Voltage Dips and InterruptionsEN IEC 61000-4-11:2020100% residual voltage for 0.5cycle; 100% residual voltage for 1cycle; 100% residual voltage for 250cycle; 30% residual voltage for 25cycle

OTHER

Communication interface
RS232/USB
Phase
single phase with groud
Display
LCD
Operating temperature
0~40℃
Humidity
20-90% relative humidity(non-condensing)
ElevationNote 2
1000m
Struture
Rack
Weight
10.5kg
Size
630*438*88mm

Certifications & ratings

Marked features
Industrial, Network, Security

MODEL ENCODING

B
Built-in Battery
Blank
No Battery
TH
Exterior structure
RH (this model)
Exterior structure
Test conditions and notes2
  1. 1. Derate capacity to 80% when the output voltage is adjusted to 200VAC/208VAC
  2. 2. if the UPS is installed or used in a place where the altitude is above than 1000m. the outout power must be derated one percent per 100m.

Technical drawings

ES-SU3K-RH Mechanism Dimension
Mechanism Dimension
ES-SU3K-RH External Battery
External Battery
ES-SU3K-RH LCD Panel
LCD Panel
ES-SU3K-RH Output & Battery voltage information
Output & Battery voltage information
ES-SU3K-RH Audible Alarm
Audible Alarm
ES-SU3K-RH LCD diaplay wording index
LCD diaplay wording index
ES-SU3K-RH Accessories List
Accessories List
ES-SU3K-RH Multiple UPS systems can be controlled and monitored via
Multiple UPS systems can be controlled and monitored via
ES-SU3K-RH PSWG-ES-SU-SNMP
PSWG-ES-SU-SNMP
ES-SU3K-RH It supports the MODBUS RTU communication protocol.
It supports the MODBUS RTU communication protocol.

Typical applications

  • Data center
  • Financial institution
  • Smart Buildings
  • Industrial automation

Downloads

FAQ

What is the power capacity of the Mean Well ES-SU3K-RH?

The ES-SU3K-RH is rated for 3KVA / 3KW output capacity. It also has an output power factor of 1, which means its kVA and kW ratings are matched for full usable output.

What input voltage range does the ES-SU3K-RH support?

This model supports an ultra-wide AC input voltage range of 110V to 300Vac at 50% load, and 160V to 300Vac at 100% load. That wide range helps it handle unstable mains conditions more effectively than units with narrower input tolerance.

Is the ES-SU3K-RH suitable for generator-powered environments?

Yes, the ES-SU3K-RH is specified as supporting connection to fuel generators. That makes it a practical option for sites where backup or primary power may come from a generator rather than utility power alone.

What output voltage options are available on this UPS?

The ES-SU3K-RH supports selectable output voltages of 200, 208, 220, 230, and 240Vac. This flexibility can help match the UPS to different equipment or regional voltage requirements within supported operating parameters.

What monitoring and control features are included with the ES-SU3K-RH?

This model includes an LCD display panel plus USB and RS-232 communication interfaces. It also provides an emergency power-off (EPO) function and adjustable charging current settings through the LCD.

What operating temperature range is specified for the Mean Well ES-SU3K-RH?

The specified operating temperature range is 0°C to 40°C. It is intended for use within that ambient range to stay within the product's stated operating conditions.

How efficient is the input performance of the ES-SU3K-RH?

The ES-SU3K-RH has an input power factor of at least 0.99 at nominal voltage and full load, with input current harmonic distortion of 5% or less at 100% resistive load. These figures indicate strong input-side power quality performance for a UPS in this class.

What warranty is offered for the ES-SU3K-RH?

Mean Well specifies a 3-year warranty for the ES-SU3K-RH. That warranty period can be useful for buyers evaluating lifecycle support and long-term deployment planning.

Payment & Security

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Mean Well

Mean Well ES-SU3K-RH Uninterruptible Online UPS 8A

$321.83 USD

ES-SU3K-RH is the 200/208/220/230/240Vac output model of this series: typical efficiency 97%. Type RH: Exterior structure.

ES-SU3K is a 3KVA online UPS power supply, providing rack type and tower type two appearance structures, using advanced digital control technology, combined with high integrated circuits and optimized design, enhance anti-interference ability, and ensure stable performance. The product has a full load efficiency of up to 94%, an input power factor of over 0.99, and a current harmonic of less than or equal to 5%, which can effectively prevent additional energy loss and reduce grid pollution. Its ultra-wide voltage input range is compatible with unstable power grids and fuel generators, which can easily cope with harsh power environments, reduce the need for frequent switching to battery power, and accurately match the needs of highly sensitive loads such as servers and medical equipment. In addition, the product has built-in EPO emergency power-off function and USB/RS-232 dual communication interfaces, which further strengthens the system security and remote control capabilities, It provides efficient, stable and flexible power protection solutions for key scenarios such as data centers, intelligent manufacturing, and communication base stations.

Features

  • Supporting connection to fuel generators
  • Ultra-wide input voltage range: 110V to 300Vac
  • Input power factor ≥ 0.99
  • Input current harmonic distortion ≤ 5%
  • Output power factor of 1
  • 50Hz/60Hz frequency conversion mode
  • Emergency power-off function (EPO)
  • USB/RS-232 communication interfaces
  • LCD display panel
  • Intelligent charging mode, adjustable charging current
  • 3-year warranty

Typical applications

  • Data center
  • Financial institution
  • Smart Buildings
  • Industrial automation
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