PowMr POW-RELAB 3KE Solar Inverter Charger User Manual

PowMr POW-RELAB 3KE Solar Inverter Charger

Specifications

• Product Name: POW-RELAB SERIES
• Type: Grid-tied inverter-charger integrated machine
• Manufacturer: PowMr
• Application: Solar energy storage systems for residential and commercial use

Product Usage Instructions

Important Safety Instructions
Please keep the user manual properly for future reference! It is essential to read, understand, and adhere to all safety instructions provided in this document to prevent property damage
or personal injury.

Basic Guidelines

1. Before using the equipment, carefully review all relevant sections of the device, battery, and instruction manual for guidance and warning signs.
2. Only charge deep-cycle lead-acid rechargeable batteries to reduce the risk of injury.
3. Do not disassemble the equipment as it does not contain user-serviceable parts.

Installation
Do not use this product in areas where there is a risk of gas or dust explosions. Prior to use, ensure proper installation following the provided guidelines.

Transportation and Storage

1. Ensure that power and battery cables are disconnected before storing or transporting the product.
2. If the equipment is not in its original packaging during transportation, any transport damage should be checked and addressed promptly.

Charging, Recharging, and Disposal
Follow instructions diligently to ensure safe installation, operation, transportation, and storage of the product, especially during charging, recharging, and disposal processes.

FAQ

• Q: Can I use other types of batteries with the POW-RELAB series?
  A: No, it is recommended to only use deep-cycle lead-acid rechargeable batteries to reduce the risk of personal harm.

• Q: Where can I find the latest user manual for the POW-RELAB series?
  A: For the most recent version of the user manual, you can visit the official website of PowMr or contact customer service.

User Manual POW-RELAB SERIES

Important Safety Instructions

• Please keep the user manual properly for future reference!
• Warning: It is essential to read, understand, and adhere to all safety instructions provided in this document. Failure to comply with safety regulations may result in property damage or personal injury.

Basic Guidelines

1. Before using the equipment, carefully review all relevant sections of the device, battery, and instruction manual for all guidance and warning signs.
2. Caution: To reduce the risk of injury, only charge deep-cycle lead-acid rechargeable batteries. Other types of batteries may rupture, causing personal harm.
3. This product does not contain user-serviceable parts. Do not disassemble the equipment. When maintenance or cleaning is required, take it to a qualified service center. Improper reassembly may pose risks of short-circuiting and fire. If any panel displays a malfunction, do not remove the front panel or operate the product. All operating procedures must be performed by trained professionals.
4. To reduce the risk of electric shock, disconnect all wiring before performing any maintenance and cleaning. Only turn off the main unit; this alone does not reduce the risk of electric shock.
5. Caution: Only qualified personnel should assemble the equipment with the battery.
6. Charging frozen batteries is prohibited.
7. Exercise extreme caution when using metal tools or placing them around the battery. Dropping tools can generate sparks or cause unpredictable risks such as short-circuiting the battery or other electronic components, potentially leading to explosions.
8. When disconnecting AC or DC terminals, strictly follow the installation steps as outlined in the instruction manual’s installation section.
9. Before using this product, read the provided instructions to familiarize yourself with safety features and operating instructions. This product is designed and tested according to international standards. The equipment must be used exclusively for its intended purpose.

Installation

1. Do not use this product in areas where there is a risk of gas or dust explosions. Prior to use, consult with the battery manufacturer’s relevant literature to ascertain the compatibility of this product with the battery. Always adhere to the safety instructions provided by the battery manufacturer.
2. This is a safety-class product equipped with a protective grounding terminal. Continuous protective grounding must be provided by the AC input/output terminals.
3. Grounding Instructions: The inverter/charger should be connected to a permanent grounding wire system to ensure full compliance with local requirements and regulations for installing the inverter. When grounding protection may have been compromised, the product must be shut down to prevent accidental electric shock.
4. To ensure optimal operation of the inverter/charger, adhere to the required specifications and select appropriate cable sizes, which are crucial for the correct operation of the inverter/charger.
5. Before connecting to the mains power, ensure that the available power supply meets the parameters specified in the product manual.
6. Do not short-circuit the AC output and DC input. Do not connect the mains power when the DC output is short-circuited.
7. Ensure that the equipment is used in conditions compliant with standards. Do not operate the product in moist or dusty environments. Ensure there is sufficient clearance space around the product and check that ventilation holes are not blocked.
8. Ensure that the required system voltage does not exceed the capacity of the product.

Transportation and Storage

1. Ensure that the power and battery cables are disconnected before storing or transporting the product.
2. If the equipment is not in its original packaging during transportation, any transport damage is not the responsibility of the manufacturer.
3. Store the product in a dry environment, with storage temperature between -20°C to 60°C.
4. Refer to the battery manufacturer’s manual for information on battery transportation, storage, charging, recharging, and disposal.
5. Please follow these instructions diligently to ensure safe installation, operation, transportation, and storage of the product.

Overview

1. Scope
   This user manual provides information, operation, and maintenance guidance for the POW-RELAB series grid-tied inverter-charger integrated machines. The POW- RELAB series products are grid-tied inverters developed by PowMr for solar energy storage systems, suitable for various residential or commercial applications.

2. Target Audience
   This manual is intended for professional technical personnel involved in the installation, operation, and maintenance of lithium batteries, as well as end- users seeking technical information.

3. Manual Usage

4. Before using the product, carefully review this user manual and keep it stored in an easily accessible location.

5. All information in the user manual, including images and symbols, is the property of PowMr. Unauthorized use of any portion or all of the content is prohibited for individuals outside the company.

6. Considering the possibility of updates and revisions to the manual content, users are advised to use the accompanying manual as a reference. For the latest user manual, users can visit the official website or contact customer service.

Product Overview

Features

1. The POW-RELAB series grid-tied solar inverter-charger integrated machines from PowMr are suitable for most residential and commercial scenarios, ensuring higher output stability and reliability.
2. Flexible energy deployment is achieved through three operating modes, ensuring stable operation of loads while maximizing the utilization of solar clean energy. The energy-saving mode minimizes equipment self-consumption losses.
3. It combines pure sine wave inverter output with mains or generator bypass output functions, supporting solar charging and AC power charging. The output power and charging power can be prioritized according to actual application needs.
4. This manual introduces the types and sizes, performance, technical characteristics, warnings, and precautions of lithium battery systems. This specification is only applicable to battery systems provided by PowMr Energy.
5. The bottom of the machine is equipped with battery circuit fuses to ensure circuit safety.
6. It features built-in multiple protection functions and precise alarm mechanisms, providing comprehensive protection for system safety and stability.
7. External communication is supported via RS232 or RS482. BMS communication is supported to effectively monitor battery operation, optimize battery pack operation efficiency, and extend the lifespan of the entire battery pack.

System Basic Architecture

• The following illustration depicts the basic application of the inverter/charger, along with the additional equipment required to form a complete operational system:
  • Engine or mains power
  • Photovoltaic modules
• Additional system architectures can be consulted with system integrators based on your requirements. This inverter can provide power to various electrical appliances in residential or office environments, including lamps, fans, refrigerators, air conditioners, and other motor-type appliances.

Product Appearance

3KW Model (POW-RELAB 3KE/ POW-RELAB 3KU)

5KW & 10KW Models (POW-RELAB 5KE/ POW-RELAB 5KU/ POW-RELAB 10KE/ POW-RELAB 10KU)

Assembly

Unboxing and Inspection
Before assembly, please inspect the unit to ensure that the items in the packaging are undamaged. Inside the package, you will find the following items:

• Inverter device x1
• Instruction manual x1
• Explosion screws
• Battery fuses

Installation Tools
Before installation, please prepare the following tools.

Equipment Installation
Before selecting an installation location, consider the following points:

• Do not install the inverter on combustible building materials.
• Install on a solid surface.
• Position the inverter at eye level for easy viewing of the LCD display.
• Maintain approximately 20cm spacing on each side and approximately 50cm spacing above and below the device for proper air circulation and heat dissipation.
• Ensure ambient temperature remains between 0°C to 55°C for optimal operation.
• It is recommended to install the device vertically `against the wall.
• Ensure other objects, as shown in the diagram, maintain sufficient distance from the inverter surface to ensure adequate heat dissipation and provide enough space for wiring removal.
• Suitable for installation on concrete or other non-combustible walls. Secure the device in place using two screws, preferably M4 or M5 screws.

Wiring Preparation
Loosen the fixed screws of the wiring terminal cover plate and remove the cover plate.

Wiring

Cable Size and Circuit Breaker Specifications

PV IN

• The configuration of the photovoltaic input cable depends on the actual power and voltage parameters of the photovoltaic array.
  • Required Parameters: Photovoltaic input power, Photovoltaic input voltage
  • Wire Size Configuration: Photovoltaic input power / Photovoltaic input voltage / 5
• For example: If the photovoltaic array has a power of 1600W and a voltage of 144V, the wire size is calculated as follows: 1600 / 144 / 5 ≈ 2.22mm², so the wire size can be chosen as 3mm².
• Circuit Breaker Configuration: Photovoltaic input power / Photovoltaic input voltage
• For example: If the photovoltaic array has a power of 1600W and a voltage of 144V, the circuit breaker specification is calculated as follows: 1600W / 144V ≈ 11.11A, so the circuit breaker can be chosen as a model greater than 11.11A.

AC IN

Battery

AC OUT

3KW

5KW

| 4mm2| 6mm2| ≥14A| ≥28A
6mm2| 10mm2| ≥23A| ≥46A
10KW| 10mm2| 25mm2| ≥46A| ≥91A
|

AC Input & Output Connection

1. Connect the live wire, neutral wire, and ground wire to the respective terminals of the mains input and AC output as illustrated below, and install circuit breaker protection devices that meet the requirements on each of the two lines.
2. Ensure proper grounding of the equipment for safety. Ensure all cables are installed correctly and securely tightened.

AC Input Wiring for 3KW Model: AC Output Wiring for 3KW Model:

AC Input Wiring for 5KW/10KW Model: AC Output Wiring for 5KW/10KW Model:

DANGER

• Before connecting the AC input and output, it is essential to open the circuit breaker to avoid the risk of electric shock. Do not perform any operations while the power is on.
• Please ensure that the cables used meet the requirements. Thin or poor-quality cables pose a serious safety hazard.

Battery Connection
Please connect the positive and negative terminals of the battery according to the diagram below. Be sure to install a circuit breaker that meets the specifications on the battery circuit.

Battery Connection for 3KW Model: Battery Connection for 5KW/10KW Model:

ATTENTION
The POW-RELAB series inverters come standard with a fuse device for the battery circuit. Please use it according to actual needs.

DANGER

• Before connecting the battery, it is essential to disconnect the circuit breaker to avoid the risk of electric shock. Do not perform any operations while the power is on.
• Ensure that the positive and negative terminals of the battery are correctly connected and not reversed, as this could damage the inverter.
• Please ensure that the cables used meet the requirements. Thin or poor-quality cables pose a serious safety hazard.

Photovoltaic Connection
Please connect the photovoltaic array according to the diagram below, and strictly adhere to the requirement of installing a circuit breaker that meets the specifications.

Photovoltaic Connection for 3KW Model: Photovoltaic Connection for 5KW/10KW Model:

DANGER

• Before connecting the photovoltaic panels, it is essential to open the circuit breaker to avoid the risk of electric shock. Do not perform any operations while the power is on.
• Please ensure that the open-circuit voltage of the connected photovoltaic modules in series does not exceed the maximum open-circuit voltage of the inverter (which is 150V in this series), as otherwise, the inverter may be damaged.

Selecting and Configuring Photovoltaic Panels

• The following parameters are obtained from the specifications of photovoltaic panels:
  • Pmax: Maximum output power (W)
  • Voc: Open-circuit voltage (V)
  • Isc: Short-circuit current (A)
  • Vpm: Rated voltage (V)
  • Ipm: Rated current (A)
• Photovoltaic panels can be connected in series or parallel to obtain the required output voltage and current to meet the photovoltaic input range allowed by the solar controller and inverter-charger.

• In any scenario, the total output power is equal to the power of a single photovoltaic panel multiplied by the total number of panels. The guideline for configuring photovoltaic panels is that the total power should be equal to or slightly greater than the maximum allowable PV power of the solar controller (refer to the technical specifications table). Excess capacity of photovoltaic panels does not contribute to the capacity of the solar charger; it only leads to higher installation costs.
• The total Ipm of photovoltaic panels should be less than the maximum charging current of the inverter.
• The total Voc of photovoltaic panels should be less than the maximum PV input voltage of the inverter (refer to the technical specifications table).

Example: Taking a 48V inverter as an example, selecting suitable photovoltaic components. Considering two scenarios for the built-in charging module of the inverter: The maximum photovoltaic input for PWM controller is 105V. The maximum photovoltaic input for MPPT controller is 150V. The total power should be equal to or slightly greater than 3200W. We can choose the following specifications for photovoltaic panels:

Maximum power Pmax(W)| 80W| Number of photovoltaic panels in each series:
MPPT→4 panels (421.6V<105V) MPPT→6 panels (621.6V<150V)

Total number of photovoltaic panels:
40 pieces→3200W/80W: 40 (panels) Number of parallel-connected groups: PWM→10 groups (40/4=10 groups) MPPT→7 groups (40/6=7 groups)

---|---|---
Rated voltage Vpm(V)| 18V
Rated current Ipm(A)| 4.46A
Open-circuit voltage Voc(V)| 21.6V
Short-circuit current Isc(A)| 4.8A

Configuration scheme for 48V inverter:

• PWM controller: 4 panels of photovoltaic panels are connected in parallel to the inverter, with 10 groups of panels connected in parallel.
• MPPT controller: Every 6 panels of photovoltaic panels are connected in series to form one group, and 7 groups of photovoltaic panels are connected in parallel.
• Solar panel daily output = Total power of solar panel x Controller conversion efficiency x Local average sunlight time.

Final Assembly
After confirming all connections are accurate and tightened, please reinstall the port protective cover onto the device.

Communication Connection

RS485 Connection (BMS Communication)
When connecting the RS485 communication interface externally, the pin definitions are as follows:

Dry Contact Function
Operating Principle: Dry contacts can control the AC input switch for battery charging.

Close

Battery voltage > AC power switching to DC power voltage.| Close| Open

Operation

Starting the Inverter
After closing the circuit breaker of the battery line, start the inverter by using the boat-shaped switch at the bottom. Once the inverter starts up normally, sequentially close the circuit breakers of the photovoltaic input, AC input, and AC output lines.

Introduction to the Operation Panel

LED Indicator Lights

Function Keys

Display Panel Introduction

Interface Overview

U1

Operating Modes

1. Grid Mode
   Press the power button to start the device. When grid power is available, the inverter operates in grid mode, and the green “AC” indicator light remains steady.

2. Inverter Mode
   In the event of a grid power outage or generator failure, the device switches to inverter mode, providing direct power to the load. The transition time is less than 10 milliseconds, ensuring uninterrupted operation of computers and other electronic devices. The green “INV” indicator light on the LCD screen will blink.

3. Charging Mode
   When grid power or generator power is restored, the inverter enters charging mode. The green “AC” indicator light remains steady, while the yellow “CHG” indicator light starts blinking. Once the battery is fully charged, the blinking yellow indicator light changes to steady.

4. Alarm Mode
   In case of a device malfunction, the red “FAULT” indicator light illuminates along with an audible alarm.

5. Bypass Function
   When the device is turned off and grid power or generator power is available, the output terminals receive output voltage and begin charging. If there is no grid power or generator power, the output terminals do not supply voltage.

6. Energy-saving Mode
   If there is no AC power input, the inverter’s AC output will only supply power when a load greater than 15 watts is connected. It automatically checks the connected load every 25 seconds.

LCD Screen Settings
To enter the settings mode, follow these basic steps and configure the program as needed:

1. Enter settings mode: Long press the ENTER button for 10 seconds.
2. Exit mode: Press the ESC button multiple times.
3. Select the parameter to be modified using the UP/DOWN buttons, then press ENTER to confirm.
4. The parameter will blink, allowing you to change it using the UP/DOWN buttons. Once done, press ENTER and wait for the settings to be completed.

LED Signal Indicator Display:

1. During settings: The setting icon will blink.
2. Upon successful setting: The border on the left side of the parameter blinks.
3. In case of setting failure: “ERROR” is displayed, and the fault indicator light is on.

Item| Left Display| Middle Display| Right Display| Parameter Setting Range| Explanation
---|---|---|---|---|---
Grid Input Voltage Range| AIr| 00| UPS| Narrow Range| Grid input range: KE Model: 180~265Vac ±3V KU Model: 92~132Vac ±3V
APL| Wide Range| Grid input range:

KE Model: 155~265Vac ±3V KU Model: 77~132Vac ±3V

Grid Frequency Range| AFr| 01| LO| Narrow Range| Grid input range: 45~65Hz
HI| Wide Range| Grid input range: 40~65Hz
Operating Mode| None| 02| UTI| Grid Priority| Grid power is prioritized to supply the load. Solar energy and battery power supply the load only when grid power is insufficient.
SOL| Solar Priority| When solar energy is sufficient, it is prioritized to supply the load. When solar energy is insufficient, both solar energy and battery power supply the load. In the
| | | | | absence of solar input, grid power supplies the load.

Additionally, if the battery voltage drops to the low battery voltage warning point or the preset DC output switches to AC output voltage point, the output power will also switch to grid power for supplying the load.

---|---|---|---|---|---
SBU| Solar Charging Only| When solar energy is sufficient, it is prioritized to supply the load. When solar energy is insufficient, both solar energy and battery power supply the load. If the battery voltage drops to the battery undervoltage warning voltage or the preset DC output switches to AC output voltage point, the output power will also switch to grid power for supplying the load.
Charging Mode| None| 03| CUT| Grid Priority| Both grid input and solar energy charge the battery simultaneously.
CSO| Solar Priority| In solar priority mode, if solar energy is available, the inverter will prioritize using solar energy to charge the battery. When the battery voltage drops below the setting value of item 09, the charging source automatically switches to grid power. When the battery
| | | | | voltage exceeds the setting value of item 10, the charging source automatically switches to solar energy.
---|---|---|---|---|---
OSO| Solar Charging Only| Only solar energy is allowed as the charging source.
Grid Charging Current Percentage| ACP| 04| 100%| 10~100%| Set the percentage of grid charging current.
Solar Charging Current Percentage| SCP| 05| 100%| 20~100%| Set the percentage of solar charging current.
Boost Charging Voltage (CV)| CU| 06|

14.2V

|

13.5~15.0V

| Set the boost charging voltage, i.e., constant voltage charging voltage. Please strictly follow the parameters in the battery specification for setting.

28.4V

|

27.0~30.0V

56.8V

|

54.0~60.0V

Float Charging Voltage| FLU| 07| 13.6V| 12.5~14.0V| Set the float charging voltage for the battery. Please strictly follow the parameters in the battery specification for setting.
27.2V| 25.0~28.0V
54.4V| 50.0~56.0V
Battery Discharge Cutoff Shutdown Voltage| COU| 08| 10.2V| 9.5~11.5V| Set the shutdown voltage point for battery protection. When the battery voltage drops below this set value, the inverter will automatically
20.4V| 19.0~23.0V
| | | 40.8V| 38.0~46.0V| shut down to prevent deep discharge of the battery.
---|---|---|---|---|---
Enable Grid Charging Voltage| DTA| 09| 12.0V| 11.5~12.5V| Configure the voltage value of grid power used for charging the battery in solar priority charging mode.
24.0V| 23.0~25.0V
48.0V| 46.0~50.0V
Exit Grid Charging Voltage| ATD| 10| 13.5V| 13.0~14.0V| Stop using the voltage value of grid power for charging the battery in solar priority charging mode.
27.0V| 26.0~28.0V
54.0V| 52.0~56.0V
Inverter Output Voltage| OU| 11| 220V| 200~240V| Set the inverter output voltage.
Grid Detection Speed| CST|

12

| HI| Fast| Grid sensitivity setting, configuring the response speed for grid power fluctuations.
IDE| Medium
LO| Slow
Inverter

Output Frequency

|

OF

|

13

| 50Hz| Set the inverter output frequency.
60Hz
Fault Restart Switch| RA| 14| TE| Enabled| Automatically restarts three times in case of short circuit or overload faults.
TD| Disabled| Does not restart in case of short circuit or overload faults.
Backlight Control| BLC| 15| LON| Always On| Backlight remains on and does not turn off.
LOF| Always Off| Backlight remains off and does not turn on.
LOD| Delayed Off| Automatically turns off
| | | | | backlight after 1 minute of inactivity.
---|---|---|---|---|---
Buzzer Control Switch| BEC| 16| AON| Enabled| When enabled, the buzzer will sound an alarm in case of device faults.
AOF| Disabled| When disabled, the buzzer will not sound in case of device faults.
Battery Under Voltage

Alarm Switch

| BOL| 17| Off| Disabled| Defaulted to enabled. This is an intelligent battery protection feature, and it is not recommended to change.
On| Enabled
Load

Limitation

| LL| 18| Off| Disabled| Defaulted to enabled. This is an intelligent battery protection feature, and it is not recommended to change.
On| Enabled
/| LEL| 19| This model does not support this setting for now.
Baud Rate| BAU| 20| 0| 2400| Set communication baud rate.
1| 4800
2| 9600
Inverter Output Mode| ODT| 21| 220| 220| Set to display output voltage. This is only for adjusting the display and does not change the inverter output voltage.
110| 110
Startup Battery Voltage| BLS| 22| 11.5V| 10.5~12.2V| After abnormal shutdown of the inverter, the device can only be manually restarted if the battery voltage is higher than this set value.
23.0V| 21~24.4V
46.0V| 42~48.8V
Undervoltage Shutdown| BLS| 23| 13.0V| 12~14V| After shutdown due to battery undervoltage, the
26.0V| 24~28V
Recovery Voltage| | | 46.0V| 48~56V| inverter can automatically restart when the battery voltage exceeds this set value.
---|---|---|---|---|---
Battery Type| BTT| 24| SEL| SEL| Sealed Lead Acid Battery
GEL| GEL| Gel Sealed Lead Acid Battery
FLD| FLD| Flooded Lead Acid Battery
USER| USER| User Defined
TER| LiCoMnNiO2| Lithium-ion Battery
LIF| BAT- LiFePOW4| Lithium Iron Phosphate Battery
BMS

Function Switch

| BnS| 25| OFF| ON| Enable BMS communication function. When enabled, settings 26~29 can be effectively configured and executed.
OFF| Disable BMS communication function.

Under voltage Shutdown SOC

|

BSU

|

26

|

10%

|

5~50%

| Configuration of BMS under voltage shutdown SOC. When the battery SOC is detected below the set value, the inverter will automatically shut down to protect the battery.
Switch to Utility Mode SO| STG| 27| 20%| 5~50%| If the inverter operation mode is set to Battery Priority Mode, when the battery SOC is below the set value, it will forcibly switch to utility charging mode.
Switch to Inverter Mode SOC| STB| 28| 95%| 50~100%| If the inverter operation mode is set to Battery Priority Mode, when the battery SOC is above the set value, it will revert to battery inverter operation mode.
---|---|---|---|---|---
Restart SOC| BSR| 29| 50%| 30~100%| After the inverter is powered on, it can only operate normally when the SOC is above the set value.
Restore Factory Settings| RS| None| OFF| ON| Restore factory settings.
OFF| /
ECO Energy Saving Mode|

ECO

|

None

|

OFF

| ON| Enable energy-saving mode.
OFF| Disable energy-saving mode.

Troubleshooting

Alarms

Alarm Event

Errors

Troubleshooting

the polarity of the terminals and reconnect them correctly.
No output from the inverter| Output terminal rows not tightened| Remove the port cover and tighten the corresponding terminal rows.
**** Inverter unable to charge| Input voltage less than 150Vac| Increase the voltage using a stabilizer.
Continuous alarm from inverter buzzer during load operation| Inverter overload| Check the load and reduce high-power loads.

System Maintenance

1. To maintain optimal and long-term performance, it is recommended to conduct the following checks twice a year:
2. Ensure that the airflow around the all-in-one machine is not obstructed, and clear any dirt or debris from the heat sink.
3. Inspect all exposed wires for damage to insulation caused by exposure to sunlight, friction with surrounding objects, dryness, insect or rodent damage, etc. Repair or replace wires as necessary.
4. Verify that the indicators and displays are consistent with equipment operation. Take corrective action if any faults or error displays are observed.
5. Inspect all terminal connections for corrosion, insulation damage, high temperature, or signs of burning/discoloration. Tighten terminal screws.
6. Check for dirt, nesting insects, and corrosion, and clean as required.
7. If surge protectors have failed, promptly replace the failed surge protectors to prevent damage from lightning strikes to the all-in-one machine or other user equipment.

The following damages are not covered by the company’s liability:

1. Damage caused by improper use or use in inappropriate locations.
2. Damage caused by the open-circuit voltage of photovoltaic modules exceeding the maximum allowable voltage.
3. Damage caused by operating environment temperatures exceeding the limited operating temperature range.
4. Unauthorized disassembly and repair of the all-in-one machine.
5. Damage caused by force majeure: damage occurring during transportation or handling of the all-in-one machine.

The following situations are not covered by the warranty:

1. User-configured batteries.
2. Equipment damage caused by operation not in accordance with the user manual.
3. Machine damage caused by natural disasters such as fire, flood, etc.
4. Products beyond the warranty period are subject to paid repair services.

Specifications

Table 1: Utility Mode Parameters

Model| POW-RELAB 3KE| POW-RELAB 5KE| POW- RELAB 10KE
---|---|---|---
Input Voltage Waveform| Pure Sine Wave
Nominal Input Voltage| 220Vac
AC Input Voltage Range| 154~265Vac
Nominal Input Frequency| 50Hz / 60Hz (Auto Detection)
Transfer Time| ≤10ms (UPS); ≤20ms (APL)
Input Protection| Circuit Breaker
Output Protection| Circuit Breaker
Model| POW-RELAB 3KU| POW-RELAB 5KU| POW- RELAB 10KU
---|---|---|---
Input Voltage Waveform| Pure Sine Wave
Nominal Input Voltage| 110Vac
AC Input Voltage Range| 77~135Vac
Nominal Input Frequency| 50Hz / 60Hz (Auto Detection)
Transfer Time| ≤10ms (UPS); ≤20ms (APL)
Input Protection| Circuit Breaker
Output Protection| Circuit Breaker

Table 2: Inverter Mode Parameters

Model| POW-RELAB 3KE| POW-RELAB 5KE| POW- RELAB 10KE
---|---|---|---
Rated Output Power| 3000W| 5000W| 10000W
Output Voltage Waveform| Pure Sine Wave
Output Voltage Range| 220Vac±10%
Output Frequency| 50Hz / 60Hz
Efficiency| >98%
Bypass Mode| Integrated
Eco Mode| Integrated
Nominal DC Input Voltage| 24Vdc| 48Vdc
Model| POW-RELAB 3KU| POW-RELAB 5KU| POW- RELAB 10KU
---|---|---|---
Rated Output Power| 3000W| 5000W| 10000W
Output Voltage Waveform| Pure Sine Wave
Output Voltage Range| 110Vac±10%
Output Frequency| 50Hz / 60Hz
Efficiency| >98%
Bypass Mode| Integrated
Eco Mode| Integrated
Nominal DC Input Voltage| 24Vdc| 48Vdc

Table 3: Charging Mode Parameters

Battery
Battery Type| AGM, FLD, GEL, Lithium battery
Charging Current| 38A| 29A| 60A
Battery Charging Voltage| 27.4VDC| 54.8VDC| 54.8VDC
Battery Undervoltage Cutoff Voltage| 20V/21V| 40V/42V
Battery Undervoltage Warning Voltage| Mild discharge: 23V; Loaded discharge: 23V @ load < 20% / 22V @ load > 50% / 21V @ load > 50%| Mild discharge: 46V; Loaded discharge: 46V @ load < 20% / 44V @ load > 50% / 42V @ load > 50%
| Mild discharge: 24V;| Mild discharge: 48V; Loaded
Battery Undervoltage Recovery Voltage| Loaded discharge: 24V @ load < 20% / 23V @ load > 50% / 22V @| discharge: 48V @ load < 20% / 46V @ load > 50% / 44V @ load > 50%
| load > 50%|
| Mild discharge: 22V;| Mild discharge: 44V; Loaded
Battery Undervoltage Shutdown Voltage| Loaded discharge: 22V @ load < 20% / 21V @

load > 50% / 20V @

| discharge: 44V @ load < 20% / 42V @ load > 50% / 40V @ load > 50%
| load > 50%|
Battery Overvoltage Warning Voltage| 32V| 64V
Battery Overvoltage Recovery Voltage| 30V| 60V
PV Input
Max. PV Array Power| 1600W| 6400W| 6400W
MPPT Input Voltage Range| 30~150Vdc| 60~150Vdc
Max. PV Array Open Circuit Voltage| 150Vdc
Charging Current
Maximum AC Charging Current| 38A| 29A| 60A
Max. PV Charging Current| 60A| 120A

Table 4: General Parameters

Model| POW-RELAB 3KE| POW-RELAB 5KE| POW- RELAB

10KE

---|---|---|---
Operating temperature| -10°C to 50°C
Storage temperature| -15°C to 50°C
Humidity| Relative humidity from 5% to 95% (non-condensing)
Noise| ＜45dB
Dimensions (LxWxH)| 465310135mm| 545400200mm
Net weight| 19kg| 27.4kg| 51kg
Model| POW-RELAB 3KU| POW-RELAB 5KU| POW- RELAB 10KU
---|---|---|---
Operating temperature| -10°C to 50°C
Storage temperature| -15°C to 50°C
Humidity| Relative humidity from 5% to 95% (non-condensing)
Noise| ＜45dB
Dimensions (LxWxH)| 465310135mm| 545400200mm
Net weight| 19kg| 27.4kg| 51kg

SHENZHEN HEHEJIN INDUSTRIAL CO.,LTD

• Tel/Fax: +86 755-28219903
• Email: support@powmr.com
• Web: www.powmr.com
• Add: Henggang Street. Longgang District, Shenzhen, Guangdong, China

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