The products, services or features purchased are subject to the commercial contracts and terms of Wuxi Wattsonic Energy Technology Ltd. All or part of the products, services or features described in this document may not be within the scope of purchase. This docu- ment serves only as a guide to use, and all statements, information and recommendations in this document do not constitute any express or implied guarantee.
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Indicates a hazard with a low level of risk that, if not avoided, could result in minor or moderate injury. CAUTION Indicates a situation that, if not avoided, could result in equipment or property damage, data loss, equipment performance degradation. NOTICE Indicates additional information, emphasized contents or tips that may be helpful, e.g., to help you solve problems or save time.
2.2 Statement Wuxi Wattsonic Energy Technology Ltd. has the right not to undertake quality assurance in any of the following circumstances: ① Damages caused by improper transportation.
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⑦ Damages caused by unauthorized disassembly, alteration of products or modification of software codes. ⑧ Damages caused by abnormal natural environment (force majeure, such as lightning, earthquake, fire, storm, etc.). ⑨ Any damages caused by the process of installation and operation which don't follow the local standards and regulations.
It cannot guarantee backup power in all circumstances. NOTICE The applicable grid types for the Wattsonic WTS-25~50K series are TN-S, TN-C, TN-C-S and TT. When applied to the TT grid, the voltage of N to PE suggests less than 30V.
3.2 Product Introduction The Wattsonic WTS-25~50K series inverter is also known as hybrid inverter or storage in- verter, which is mainly used to combine the PV array, lithium battery, loads and power grid to realize intelligent power management and dispatching.
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Master inverter through RS485 or CAN. tion Indicator The inverter isn’t communicating with Orange Always on Wattsonic smart meter. The inverter isn’t communicating with the Always on BMS. Display Display off to save power, press the button to wake up the display.
3.3 Symbols On the Inverter Symbol Description To avoid the potential effects on the environment and human health as a result of the presence of hazardous substances in electrical and electronic equipment, end-users of electrical and electronic equipment should understand the meaning of the crossed-out wheeled bin symbol. Do not dispose of WEEE as unsorted mu- nicipal waste and have to collect such WEEE separately.
3.4 Operation Modes Wattsonic WTS Hybrid inverter has the following basic operation modes and you can con- figure the operation mode as per your preference in the App. General Mode Loads In this working mode, when the power from the PV array is sufficient, PV power will supply the loads, battery, and grid in the order of ...
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Peak load Shifting (Load Shifting) Loads Set the maximum power Pmax (kVA) contracted with the grid. When the load consumption is less than the Pmax, the PV will charge the battery first, and the grid supplies the load. When the battery is full, PV will supply the load together with the grid, but the battery doesn't.
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UPS Mode Loads In this working mode, the inverter will use the power from PV or grid to charge the battery until it is fully charged, and as long as the grid is there, the battery won’t discharge. Grid Back-up Loads When the grid fails, power from PV and battery will supply loads connected on the back-up side (UPS).
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Economic Mode Loads In this working mode, you can set charge/dis- charge power and time in the App, inverter will use the power from PV or grid (whether to use can be set in the App) to charge the battery in the predetermined period.
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Off-grid Mode Back-up Loads In the purely off-grid mode, power from PV will supply the back-up loads first and then charge the battery if there's surplus power. No Grid Back-up Load When the power from PV isn’t enough, the battery will discharge to supply back-up loads together with PV.
3.5 Back-Up and Off-Grid Output Normally, the Back-Up switching time is less than 10ms. However, some external factors may cause the system to fail on switching to Back-Up mode. Therefore, the conditions for using the Back-Up function smoothly are as follows for your awareness. ①...
For this reason, please conduct a thorough inspection after receiving the device. Contact Wattsonic or the transport company in case of any damage or incompleteness, and provide photos to facilitate services. 3.6.1 Packing List The package of the inverter includes the following accessories.
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User Manual Figure 3-5 Packing list Item Name and Quantity Inverter (1pcs) Inverter bracket (1pcs), Bolt assembly (4pcs), M6 screws (2pcs) AC connector set (2 pcs) PV terminal ((WTS-25~50K 8 pairs / WTS-40~50K-P 6 pairs) Battery terminal (1 pairs) Meter with 3 CTs (1pcs) COM2 connector set (1pcs) Monitoring device (1pcs) 10m meter communication cable (1pcs), 3m battery communication cable (1pcs)
Installation 4.1 Location The Wattsonic WTS-25~50K series inverters are designed with IP65 protection enclosure for indoor and outdoor installations. When selecting an inverter installation location, the follow- ing factors should be considered: ① The wall on which the inverters mounted must be able to withstand the weight of the in- verter.
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4.1.2 Installation Spacing Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation. ≥300mm ≥600mm ≥600mm ≥450mm Figure 4-2A Spacing for installing an inverter In case of multiple inverters, reserve specific clearance between the inverters. ≥600mm ≥600mm ≥600mm ≥600mm Figure 4-2B Spacing for installing multiple inverters...
4.1.3 Installation Angle Install the inverter vertically. Never install the inverter horizontally, or at forward/backward tilted, or upside down. Figure 4-3 Permitted and prohibited mounting positions 4.2 Mounting the Inverter 4.2.1 Bracket Installation Dimensions of wall bracket (mm) 4- 12 Figure 4-4 Dimensions of bracket ①...
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Figure 4-5 Marking hole position using installation bracket ② Secure the inverter-bracket with bolts. Figure 4-6 Fixing the bracket 4.2.2 Mounting the Inverter Lift the inverter, hang the back rail on the fixed bracket carefully. Secure the inverter with M6 screws(two sides). Figure 4-7 Mounting the inverter...
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4.2.3 External Ground Connection Connect the inverter and ground bar through PE wire to achieve the purpose of grounding protection. Please always remember wiring the PE wire before wiring other wires. Do not connect the N-wire as a protective ground wire to the inverter casing.
WARNING maintenance. Do not use other brands or other types of terminals other than the terminals in the accessory package. Wattsonic has the right to refuse all NOTICE damages caused by the mixed-use of terminals. Moisture and dust can damage the inverter, ensure the cable gland is securely tightened during installation.
5.1 Electrical Wiring Diagram This diagram shows Wattsonic WTS 25~50K series hybrid inverter wiring structure and composition, concerning the real project, the installation and wiring have to be in line with the local standards. AC Breaker AC Breaker AC Breaker...
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Single inverter wiring diagram This diagram is an example without special requirement on electrical wiring connection. Neutral line of AC supply can be isolated or switched. BACK-UP ON-GRID 1(L1) 2(L2) 3(L3) 4(N) 12(L) 13(N) 5(L1-S1) 6(L1-S2) 7(L2-S1) 8(L2-S2) 9(L3-S1) 10(L3-S2) Figure 5-2 Standard wiring diagram...
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This diagram is an example for Australia and New Zealand. Neutral line of AC supply must not be isolated or switched, and the neutral line of GRID side and BACK-UP side must be connected together according to the wiring rules AS/NZS_3000. Otherwise, BACK-UP func- tion will not work.
Max. input (output) current of WTS 25~50K AC side. The allowable AC cable of wire diameter and cross-sectional area for Wattsonic WTS 25~50K are as shown in the following:...
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However if an external residual current device (RCD) (type A is recommended) is manda- tory, the switch must be triggered at the residual current. RCD of other specifications can also be used according to local standard. The recommended residual current is as follows. Inverter Recommended residual current WTS-25K-100 300mA WTS-30K-100 WTS-36K-100 360mA...
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The AC terminal block is on the bottom side of the inverter. ① Seal accessory option. The recommended outer diameter of the cable is 20-24 mm and 24.5~30mm. If the outer diameter of the cable is greater than 24mm, remove part 1. Part 2 Part 1 Figure 5-5...
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The cord end terminals must be locked tightly, and make sure it won’t be loose after a long period of use. WARNING Figure 5-8A ⑤ Insert the main body into the rubber core and hear the "click" sound, then tighten the nut with an open-ended wrench (torque 10.0±0.1N·m) and complete the installation with a "click, click, click".
CAUTION 5.3 Monitoring Device Installation Wattsonic WTS-25~50K series hybrid inverter supports WIFI, LAN, and 4G communication. Plug the WIFI, LAN, or 4G module into the COM1 port in the bottom of inverter. A slight "click" sound during the installation represents that the assembly is in place.
The Meter can be installed in the AC combiner box or other places that are unable to be touched by children. Wattsonic CT cable with length of 2m, it’s fixed and can’t be extend- The CTs have been connected to the Wattsonic Meter when you received them, and you...
Meter terminals definition as shown in table below: Definition Function L1-S1 L1-S2 L2-S1 To detect the CT current and direction L2-S2 L3-S1 L3-S2 L1/L2/L3/N connect to grid to detect power grid voltage Power supplied from grid RS485 RS485 Communicate with inverter 5.5 Communication Connection All communication ports are in the multifunction communication Port at the bottom of inverter which including Meter port, CAN port, BMS port, EMS port, RLYOUT port, DRED...
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Definition Function RJ45-1 RS 485 Communicate with Meter RJ45-2 Communicate with BMS Multifunction Relay NO (Normally Open) Reserved Reserved DRM4/8 DRM3/7 DRM2/6 DRED For Australia and New Zealand DRM1/5 COM D/0 REF D/0 Fast stop + Fast stop Fast stop - 485 B1 485 A1 CANL_P...
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② Take out the terminal block. Press Figure 5-14 ② Remove the seal and lead the cable through the cable gland. Figure 5-15 5.5.2 Connect the Meter And BMS Communication Cables The communication between meter/BMS and inverter is RJ45 interface cable.
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② Insert one side of the RJ45 plug into the RJ45 port of terminal block. Figure 5-17 ③ Insert another side of the communication cable into the meter RS485 port or BMS CAN port. 5.5.3 Connect Other Cables ① Thread the cable of appropriate length through the swivel nut and the housing. Remove the cable jacket and strip the wire insulation.
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Figure 5-19 ③ Fix all the wires to the terminal plug according to the assignment and tighten to a torque of 1.2+/-0.1N·m with a screwdriver. Figure 5-20 ④ Pull the wires outward to check whether they are firmly installed. Insert the terminal block into the connector until it snaps into place with an audible click. Clic Click k Figure 5-21...
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⑤ Fasten the swivel nut. ・m 2.5+/-0.1N·m Figure 5-22 5.5.4 Installing the COM Connector ① Remove the waterproof lid from the COM terminal. ② Insert the COM connector into COM terminal on the bottom of the inverter until there is an audible click.
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5.5.5 Meter and BMS Communication Before purchasing the battery, you need to make sure the battery you selected is in the battery approval list of Wattsonic, otherwise, the system may not work properly. Please contact your installer or Wattsonic NOTE service team for confirmation if you’re not sure about it.
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Maximum voltage and current at DO dry contact port: 230VAC 1A/ 30VDC 1A. NOTICE For more installation and setup information, please contact Wattsonic. NOTE Load Control Breaker Contactor...
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The AC contactor should be placed between the inverter and the loads. Do not connect the load to DO port directly. The contactor is not supplied by the Wattsonic. Connect the load to the DO port of the inverter directly if the load is designed with a DI port.
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The back-up side cannot be connected on- connected to and generator directly. grid side or grid. For advanced applications, please contact our after-sales department. Figure 5-27 For more installation and setup information about parallel system, please contact Wattsonic . NOTE...
5.5.10 Fast stop Wattsonic WTS 25~50K hybrid inverter comes standard with fast stop function, and you can use this function by connecting an external switch into the fast stop interface if it re- quires in the installation place. The external switch doesn't include in our accessory box.
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5.6.1 PV Side Requirements System Layout of Units with external DC Switch ① Local standards or codes may require PV systems that fit with an external DC switch on the DC side. The DC switch must be able to safely disconnect the open-circuit voltage of the PV array plus a safety reserve of 20%.
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① Peel off the DC cable insulation sleeve for 7 mm. Figure 5-30 ② Disassemble the connector in the accessory bag. Figure 5-31 ③ Insert the DC cable through the DC connector nut into the metal terminal and press the terminal with a professional crimping plier (pull back the cable with some power to check if the terminal is well connected to the cable).
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Open-end Wrench Figure 5-33 5.6.3 Installing the PV Connector ① Rotate the DC switch to “OFF” position. Figure 5-34 ② Check the cable connection of the PV string for polarity correctness and ensure that the open circuit voltage in any case does not exceed the inverter input limit of 1,000V. 630.0 +...
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③ Insert the positive and negative connectors into the inverter DC input terminals respec- tively, a click sound should be heard if the terminals are well connected. Figure 5-36 ④ Seal the unused PV terminals with the terminal caps.
If the conductor core of the battery cable is too small, which may cause poor contact between the terminal and the cable, please use the cable specified in the above table, or contact Wattsonic to purchase terminals CAUTION of other specifications.
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② Disassemble the connector in the accessory bag, Thread the cable into end cap, grom- met, and cable gland in turn. Cable gland Grommet End cap Figure 5-38 ③ Insert the battery cable through into the metal terminal and press the terminal with a professional crimping plier (pull back the cable with some power to check if the terminal is well connected to the cable).
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① Before making the battery connector, please make sure the polarity of the cable is correct. ② Use a multimeter to measure the voltage of the battery pack and make WARNING sure the voltage is within the inverter limitation and the polarity is correct. ⑤...
"8.2 Cloud monitoring App and 8.3 Local configuration App". ② Register an account on the Cloud monitoring App. If you have got the account and password from the distributor/installer or Wattsonic, skip this step. 6.2 Inspection Before Commissioning Check the following items before starting the inverter: ①...
⑥ After the inverter is started, please refer to the [QUICK USE GUIDE] which is attached to the access to configure the inverter. If the inverter does not work properly, check the country code and battery ID Settings. ① Select the safety code suitable for the country (region) where the NOTE inverter is installed at.
Operation When the inverter is turned on, the following interfaces will be displayed on the OLED display, and the OLED display allows the user to check various operation information and to modify the settings of the inverter. If the parameter is a number short press to change the number, long press to confirm the number and jump to the next number.
7.2 General Setting General Settings FM Version V1.xx.xx.xx.xx Check code System Info V1.00 xxxxxxxxxxxxxxx V1.xx.xx.xx.xx xxxxxx 2022-05-30 10:05:05 2022-05-30 10:05:05 2022-05-30 10:05:05 Fault Info Fault 1 Fault 2 Fault N RSSI <General> <General> <General> <General> IP Addr DHCP Set DHCP Set IP Addr 192.168.0.10 192.168.0.10...
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Inverter Display Abbreviation and Complete Name Reference Table Abbreviation Complete Name System Info System information FM Version Firmware version Series number Fault Info Fault information RSSI Received signal strength indicator DHCP Set Enable or disable DHCP functionality IP Addr If DHCP is turned off, set the static IP address Gateway Addr If DHCP is turned off, set the Gateway IP address Subnet Mask...
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Inverter Display Abbreviation and Complete Name Reference Table Abbreviation Complete Name Safety Set Select the code that meet local regulatory requirements Battery_ID Set Select the battery model Work Mode Current work mode / work mode setting Export Limit On-grid export limit function switch Feed in Grid Set the percentage of the power that is allowed to feed to the grid Reactive Modes...
Abbreviation Complete Name System Maint. System maintenance, includes inverter stop and run, system restart In the multi-inverter parallel system, set the role of one inverter as the master and the Multi-INV Role other inverter as the slave. If turned it on, the battery will be automatically charged to calibrate the battery SOC. SOC Reset After the battery is charged, this function will be turned off automatically MPPT Parallel...
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Connect the AC cable, auto test will start after the inverter connected to the grid, see the operation steps below: Previous Page <Advanced> <Advanced> If Tested Auto Test Auto Test Wait CEI 0- 21 Record Wait <Advanced> Vac Set: 253.0V Time Set: 603 S Wait Wait...
7.6 Reactive Power The inverter provides a reactive power regulation function. Requirement Design freedom area 1,0 S in some countries 0,1 S +0,6 P -0,6 P Absorption of reactive energy Provision of reactive energy (under-excited) (over-excited) Figure 7-1 Capabilities This mode can be enabled via configuration software. It is enabled by default in some regions, such as AU, DE market.
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7.6.3 “Qt” Mode In the Qt mode, system rated reactive power is fixed, and the system injects reactive power according to the delivered reactive power ratio. The setting range of the reactive power ratio is 0~60% or 0~-60%, corresponding to the ranges of inductive and capacitive reactive power regulation respectively.
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7.6.5 “Q(U)” Mode The reactive power output of the inverter will vary in response to the grid voltage. “Q(U)” Mode Parameter Descriptions: Parameter Explanation Range Hysteresis Ratio Voltage hysteresis ratio on the Q(U) mode curve 0 ~ 5% QU_V1 Grid voltage limit at P1 on the Q(U) mode curve 80% ~ 100% QU_Q1 Value of Q/Sn at P1 on the Q (U) mode curve...
Monitoring 8.1 Monitoring Device Indicator Button Figure 8-1 Monitoring device display interface Indicator Status Description Connection abnormal Always On Communicate with the server normally The monitoring device is not connected to the router or is not connected to the base Slow flashing station.
8.2 Cloud monitoring App Wattsonic inverter provides a monitoring port that can collect and transmit data from the inverter to Wattsonic monitoring platform via an external monitoring device. Please refer to the product nameplate on side of enclosure to get the monitoring application. If download issues exist, contact your dealer or Wattsonic technical support.
Troubleshooting 9.1 Error Message Wattsonic WTS-25~50K series hybrid inverter is designed in accordance with grid operation standards, and conform to the requirements of safety and EMC. The inverter had passed a series of rigorous tests to ensure it runs sustainably and reliably before shipment.
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Error Message Description Solution 1. Check whether PV panels, cables, and con- nectors are waterlogged or damaged. Inverter detects that DC side's insula- ISO Over Lim- 2. Use a megger to measure ground resistance tion impedance to the ground is too itation on the DC sidel, and the measured value should low.
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Error Message Description Solution Internal storage got abnomal. Caused 1. Restart the inverter. E2 Fault by a strong external magnetic field etc. 2. Seek help from the installer or manufacture. G FC I D e v i c e 1. Restart the inverter. GFCI device got abnormal Fault 2.
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Error Message Description Solution Turn off inverter and remove the back-up connec- Abnormal voltage exists on the back- Backup OV tor. Use a multimeter to measure whether there is up side voltage existing on the back-up connector. Check whether the battery voltage or PV input Bus Volt Low Abnormal power schedduling voltage is normal...
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Error Message Description Solution Internal communication got failed. 1. Restart the inverter. SCI Fault Caused by a strong external mag- 2. Seek for help from the installer or manufacture. netic field etc. Internal storage anomaly. Caused by 1. Restart the inverter. FLASH Fault a strong external magnetic field etc.
NOTICE For any maintenance support, please contact Wattsonic. Otherwise, Wattsonic shall not be held liable for any damage caused. Servicing of the device in accordance with the manual should never be undertaken in the absence of proper tools, test equipment or the...
Items Methods Period heck the temperature and dust of the inverter. Six months to a year (it depends on the System clean Clean the inverter enclosure if necessary. dust contents in air.) Check if the air inlet and outlet are normal. Electrical Check whether there is damage to the cables, 6 months after commissioning and...
Appendix 10.1 Technical Parameters Model WTS-25K-100 WTS-30K-100 PV Input Start-up voltage (V) Max. DC input voltage (V) 1000 1000 Rated DC input voltage (V) MPPT voltage range (V) 200-850 200-850 No. of MPP trackers No. of DC inputs per MPPT Max.
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Model WTS-25K-100 WTS-30K-100 Grid Side ③ Max. output current (A) 42.0 50.0/43.5 Max. input current (A) 43.5 52.2 Power factor 0.8 leading …0.8 lagging Max. total harmonic distortion <3% @Rated output power <0.5%In <0.5%In Back-up Side 30.0 Rated output power (kW) 25.0...
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Model WTS-25K-100 WTS-30K-100 Protection AC over-voltage protection Integrated Overload protection Integrated AC short-circuit protection Integrated General Data Over voltage category PV: Ⅱ ; Main: Ⅲ Dimensions (mm) 800*620*300 (W*H*D) Weight (KG) Protection degree IP65 IP65 Standby self-consumption (W) <15 <15...
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Model WTS-36K-100 WTS-40K-100 PV Input Start-up voltage (V) Max. DC input voltage (V) 1000 1000 Rated DC input voltage (V) MPPT voltage range (V) 200-850 200-850 No. of MPP trackers No. of DC inputs per MPPT Max. input current (A) 30*4 30*4 Max.
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Model WTS-36K-100 WTS-40K-100 Grid Side Max. total harmonic distortion <3% @Rated output power <0.5%In <0.5%In Back-up Side 36.0 40.0 Rated output power (kW) 39.6 44.0 Max. output power (kW) 36.0 40.0 Rated output apparent power (kVA) Max. output apparent power (kVA) 39.6 44.0 Rated output current (A)
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Model WTS-36K-100 WTS-40K-100 General Data Over voltage category PV: Ⅱ ; Main: Ⅲ Dimensions (mm) 800*620*300 (W*H*D) Weight (KG) Protection degree IP65 IP65 Standby self-consumption (W) <15 <15 Topology Transformerless Operating Temperature Range (°C) -30~60 -30~60 Relative Humidity (%) 0~100 0~100 Operating Altitude (m) 3000 (>3000m derating)
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Model WTS-50K-100 WTS-40K-P-100 WTS-50K-100-P PV Input Start-up voltage (V) Max. DC input voltage (V) 1000 1000 1000 Rated DC input voltage (V) MPPT voltage range (V) 200-850 200-850 200-850 No. of MPP trackers No. of DC inputs per MPPT Max. input current (A) 30*4 60*2 60*2...
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Model WTS-50K-100 WTS-40K-P-100 WTS-50K-100-P Grid Side Max. total harmonic distortion <3% @Rated output power <0.5%In <0.5%In <0.5%In Back-up Side 50.0 40.0 50.0 Rated output power (kW) Max. output power (kW) 55.0 44.0 55.0 50.0 40.0 50.0 Rated output apparent power (kVA) Max.
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Model WTS-50K-100 WTS-40K-P-100 WTS-50K-100-P General Data Over voltage category PV: Ⅱ ; Main: Ⅲ Dimensions (mm) 800*620*300 (W*H*D) Weight (KG) Protection degree IP65 IP65 IP65 Standby self-consumption (W) <15 <15 <15 Topology Transformerless Operating Temperature Range (°C) -30~60 -30~60 -30~60 Relative Humidity (%) 0~100 0~100...
• Serial number of the device • Date of the device • Fault code/name • Brief description of the problem China (HQ) Wuxi Wattsonic Energy Technology Co., Ltd Address: No. 200 Linghu Road, Xinwu District, Wuxi 214100,Jiangsu Province, China Website: www.wattsonic.com Service Mail: service@wattsonic.com...
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