## Hybrid Solar Inverter Series
Hybrid Solar Inverter
## Key Features and Benefits
**Multi-Mode Operation**: Seamlessly switches between grid-tied, off-grid, and backup modes
– **Battery Integration**: Compatible with various battery technologies, including lithium-ion and lead-acid
– **Smart Energy Management**: Intelligent algorithms optimize energy usage based on production, consumption, and electricity prices
– **Peak Shaving Capability**: Reduces demand charges for commercial clients by managing peak consumption
– **Remote Monitoring and Control**: Advanced monitoring platform with detailed analytics and remote configuration
– **Parallel Operation**: Multiple units can work in parallel to increase system capacity
– **High Surge Capacity**: Handles motor startup and inductive loads with ease
– **Wide Battery Voltage Range**: Flexible battery configuration options
– **Anti-Islanding Protection**: Enhanced safety features for grid connection
– **Low Voltage Ride-Through**: Maintains operation during grid voltage fluctuations
## Application Scenarios
– **Commercial Buildings**: Reduce electricity costs and provide backup power for critical operations
– **Retail Establishments**: Maintain operations during grid outages and reduce energy costs
– **Small to Medium Enterprises**: Achieve energy independence and sustainability goals
– **Warehouses and Distribution Centers**: Support critical systems during power outages
– **Medical Facilities**: Ensure continuous power for essential equipment
– **Telecommunications**: Provide reliable backup power for communication infrastructure
– **Agricultural Operations**: Support irrigation systems and critical farm equipment
– **Remote Commercial Installations**: Primary power source with grid support where available
## Technical Specifications
Model/Item | CD3024JMH | CD3624JMH | CD5548JMH | CD6248JMH | CD8248JMH | CD11048JMH | ||
battery input data | Battery type | Lead-acid or li-ion | Lead-acid or li-ion | Lead-acid or li-ion | Lead-acid or li-ion | Lead-acid or li-ion | Lead-acid or li-ion | |
Battery Voltage(V DC) | 20~30 | 20~30 | 40~60 | 40~60 | 40~60 | 20~30 | ||
Max charge current (A) | 100 | 100 | 100 | 100 | 100 | 150 | ||
Charging curve | 3stages/Equalization | 3stages/Equalization | 3stages/Equalization | 3stages/Equalization | 3stages/Equalization | 3stages/Equalization | ||
charging strategy for li-Ion battery | self-adaption to BMS | self-adaption to BMS | self-adaption to BMS | self-adaption to BMS | self-adaption to BMS | self-adaption to BMS | ||
PV input data | Max PV input power(W) | 4200 | 4200 | 5500 | 6200 | 8200 | 22000 | |
Rated PV input voltage(V) | 350（120~500） | 350（120~500） | 350（120~500） | 350（120~500） | 350（120~500） | 350（120~500） | ||
full load DC voltage range(V) | 300~425 | 300~425 | 300~425 | 300~425 | 300~425 | 300~425 | ||
MPPT Tracking Range(V) | 120~500 | 120~500 | 120~500 | 120~500 | 120~500 | 120~500 | ||
Max PV input current(A) | 18 | 18 | 18 | 18 | 18 | 18+18 | ||
MPPT Number | 1 | 1 | 1 | 1 | 1 | 2 | ||
Output AC Data | Rated AC output power(W) | 3000 | 3600 | 5500 | 5500 | 8200 | 2*5500 | |
Peak AC output power(VA) | 6000 | 7200 | 11000 | 11000 | 12400 | 22000 | ||
Rated AC output current(A) | 13.6 | 16.4 | 25 | 28 | 47 | 50 | ||
Max AC output current(A) | 15 | 18 | 30 | 32 | 18 | 55 | ||
THD | <=3% | <=3% | <=3% | <=3% | <=3% | <=3% | ||
Output frequence(HZ) | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | ||
output voltage (AC V) | 220/230 | 220/230 | 220/230 | 220/230 | 220/230 | 220/230 | ||
Waterproof level | IP20(Only for indoor)/IP65(Outdoors on/off-grid Model:CD3024JMHB) | IP20(Only for indoor use Off-grid)/IP65(Outdoors on-grid Model:GD3624JMHB) | IP20(Only for indoor use Off-grid)/IP65(Outdoors on-grid Model:CD5548JMHB) | IP20(Only for indoor use Off-grid)/IP65(Outdoors on-grid Model:CD6248JMHB) | IP20(Only for indoor use Off-grid)/IP65(Outdoors on-grid Model:CD8248JMHB) | IP20(Only for indoor use Off-grid)/IP65(Outdoors on-grid Model:GD11048JMHB) | ||
conversion efficiency | Overall conversion efficiency | >98% | >98% | >98% | >98% | >98% | >98% | |
Size | L*W*H(mm) | 495*312*146 | 495*312*146 | 495*312*146 | 495*312*146 | 495*312*146 | 570*500*148 | |
noise | <50DB | <50DB | <50DB | <50DB | <50DB | <50DB | ||
operate temperature | -10℃-50℃,>45℃ Derating | -10℃-50℃,>45℃ Derating | -10℃-50℃,>45℃ Derating | -10℃-50℃,>45℃ Derating | -10℃-50℃,>45℃ Derating | -10℃-50℃,>45℃ Derating | ||
communication inteface | RS232 ,2400bps/RS485 with BMS(Lli_Ion Battery)(default) WIFIcard/pitch is optional | RS232 ,2400bps/RS485 with BMS(Lli_Ion Battery)(default) WIFIcard/pitch is optional | RS232 ,2400bps/RS485 with BMS(Lli_Ion Battery)(default) WIFIcard/pitch is optional | RS232 ,2400bps/RS485 with BMS(Lli_Ion Battery)(default) WIFIcard/pitch is optional | RS232 ,2400bps/RS485 with BMS(Lli_Ion Battery)(default) WIFIcard/pitch is optional | RS232 ,2400bps/RS485 with BMS(Lli_Ion Battery)(default) WIFIcard/pitch is optional | ||
Supports operation without battery | Supports operation without battery | Supports operation without battery | Supports operation without battery | Supports operation without battery | Supports operation without battery | |||
power factor | >99%(Linear Load ) | >99.5%(Linear Load ) | >99.5%(Linear Load ) | >99.5%(Linear Load ) | >99.5%(Linear Load ) | >99.5%(Linear Load ) | ||
XYH:EN_IEC60335-2,IEC/EN62109-1,IEC/EN62109-2 |
Introduction: The New Era of Candtech Energy Solutions Brand Introduction: Candtech is dedicated to promoting the global transition to green energy structures, focusing on the research, development, and manufacturing of leading new energy and storage solutions. We uphold the core values of innovation, efficiency, and reliability, aiming to provide users with sustainable and intelligent energy management experiences, empowering the future of clean energy living. Product Positioning: The Candtech LD Series Hybrid Inverter & Energy Storage System is a meticulously crafted, high-efficiency, intelligent, and highly reliable energy management core device. This series integrates advanced inverter technology, long-life storage units, and intelligent control systems, providing residential and commercial users with exceptional energy independence and optimized energy utilization solutions. Core Value Proposition: Integrated Design: Highly integrates inverter, lithium iron phosphate energy storage battery, and intelligent management system in one unit, simplifying installation and maintenance while optimizing spatial layout. Efficient Energy Utilization: Employs advanced MPPT (Maximum Power Point Tracking) technology to maximize solar energy capture efficiency; system conversion efficiency reaches up to 94%, significantly reducing energy losses. Durable Longevity: Core storage unit uses high-quality lithium iron phosphate (LiFePO4) battery technology, offering up to 10,000 cycle life under standard 25°C conditions, ensuring long-term stable operation. Intelligent Flexibility: Built-in multiple operation modes (such as PV priority, grid priority, battery priority), allowing users to configure according to actual needs and electricity tariff strategies for optimized energy management. Introduction: This document provides an in-depth analysis of the Candtech LD Series Hybrid Inverter & Energy Storage System’s technical specifications, key features, and application advantages, offering comprehensive references for understanding and selecting suitable energy solutions.
Candtech LD Series: In-Depth Specification Analysis This section details and interprets the specifications of Candtech LD Series products, aiming to provide users with clear and accurate technical information. Product Model Overview and Core Index Comparison For convenient model selection, the table below clearly compares the core parameters of different Candtech LD Series models:
Detailed Technical Specifications: Input Module
AC Input (Grid/Generator)
- Rated Input Voltage and Frequency: 230VAC, 50Hz/60Hz (auto-adapting)
- Voltage Allowable Range (UPS Mode): 170-280VAC (ensuring stable power supply to loads and battery charging during minor grid fluctuations)
- Voltage Allowable Range (Inverter/APL Mode): 90-280VAC (wider input voltage range, enhancing adaptability to unstable or poor grid conditions)
Solar Charging (PV Input)
- Charging Technology: MPPT (Maximum Power Point Tracking), real-time tracking of PV modules’ optimal working point, maximizing solar energy utilization efficiency.
- Maximum PV Array Input Power:
- LD5548JMH: 5500W
- LD11048MH: 11000W (supports dual MPPT, 5500W max per channel)
- MPPT Working Voltage Range: 90-500VDC (broad voltage range, compatible with most types of PV module series and parallel configurations)
- Maximum PV Charging Current:
- LD5548JMH: 100A
- LD11048MH: 150A (combined)
- Maximum AC Charging Current:
- LD5548JMH: 80A
- LD11048MH: 120A
Detailed Technical Specifications: Output Module
AC Output
- Rated Output Voltage and Accuracy: 230VAC ± 5% (in inverter mode)
- Output Frequency and Accuracy: 50/60Hz ± 0.1% (in inverter mode, providing stable frequency output)
- Output Waveform: Pure Sine Wave (high-quality power output, compatible with various precision electronic devices and inductive loads, avoiding interference and damage)
- Rated Output Power:
- LD5548JMH: 5500VA / 5500W
- LD11048MH: 11000VA / 11000W
- Peak Output Power:
- LD5548JMH: 11000VA
- LD11048MH: 22000VA (typically can withstand 2x rated power surge impacts for several seconds, meeting the starting current demands of motors and similar loads)
- Maximum Conversion Efficiency (DC to AC): Up to 94% (demonstrating excellent energy conversion performance, reducing system’s own losses)
Switching Performance
- Grid/Battery Switching Time:
- For computers and sensitive equipment: 10ms (typical UPS mode, fast switching ensures data integrity and uninterrupted operation)
- For general household appliances: 30ms (APL mode, meeting general household appliance needs)
System Self-Consumption
- No-load Power Loss:
- LD5548JMH: < 55W
- LD11048MH: < 80W (lower standby power consumption, more energy-efficient during idle)
Detailed Technical Specifications: Energy Storage Battery System
Battery Core
- Battery Type: Lithium Iron Phosphate (LiFePO4) (renowned for high safety, long cycle life, excellent thermal stability, and environmental friendliness)
- Nominal Battery Voltage: 51.2VDC
Capacity and Cycle Life
- Rated Battery Capacity:
- LD5548JMH: 5120WH
- LD11048MH: 11776WH
- Cycle Life: Up to 10,000 cycles at 25°C under standard charge/discharge conditions (a key indicator of battery durability, signifying long-term economic benefits and reliability)
Charge/Discharge Parameters
- Full Charge Voltage (FC): 56V
- Full Discharge Voltage (FD): 42V
- Maximum Continuous Discharge Current:
- LD5548JMH: 100A
- LD11048MH: 200A
- Maximum Peak Discharge Current (for 1 minute):
- LD5548JMH: 120A
- LD11048MH: 230A
- Charging Current (Recommended):
- LD5548JMH: 50A (approx. 0.5C)
- LD11048MH: 115A (approx. 0.5C)
- Charging Current (Maximum, PV and AC combined):
- LD5548JMH: 100A
- LD11048MH: 200A
Battery Protection
- Built-in Battery Management System (BMS): Comprehensive BMS provides overcharge protection, over-discharge protection, overcurrent protection, over-temperature protection, low-temperature protection, short-circuit protection, and cell balancing, ensuring the battery system’s safe, efficient, and long-term operation.
- External Protection: Equipped with circuit breakers, providing additional electrical safety.
Detailed Technical Specifications: Physical and Environmental Parameters
Physical Dimensions
- LD5548JMH (D×W×H): 610mm × 170mm × 900mm
- LD11048MH (D×W×H): 630mm × 250mm × 1030mm
Weight
- LD5548JMH (Net weight, for reference): Approx. 68kg
- LD11048MH (Net weight, for reference): Approx. 125kg
Operating Environment (Reference to general industrial standards, please refer to product manual for specifics)
- Operating Temperature Range: Typically 0°C to 40°C (or wider, specific models may support lower or higher temperatures, check detailed manual)
- Storage Temperature Range: Typically -15°C to 60°C
- Relative Humidity: 5% to 95% (non-condensing)
- Protection Class: Typically IP20 or IP21 (suitable for indoor installation environments)
Candtech LD Series: Design Highlights and Smart Experience
Appearance and Structural Design
Core Technologies and User Value
Multiple Operating Modes, Intelligent Energy Dispatch
The Candtech LD Series supports multiple configurable operating modes to adapt to different energy strategies and user needs:
- PV Priority Mode (Solar First): Maximizes solar power generation use, prioritizing PV power for loads and battery charging, with grid power or battery supplementing any shortfall, effectively reducing grid dependence and lowering electricity bills.
- Grid Priority Mode (Utility First / UPS Mode): When grid power is normal, it powers loads and charges the battery, with the system primarily functioning as an uninterruptible power supply (UPS). During grid outages or abnormalities, the system quickly switches to battery inverter power, ensuring power continuity for critical loads.
- Battery Priority Mode (SBU Mode – Solar/Battery/Utility): Prioritizes solar power generation, with battery power supplying loads when PV is insufficient, until battery level drops to a set threshold, then switching to grid power. This mode is ideal for time-of-use tariff regions, charging during off-peak and discharging during peak hours, optimizing electricity costs.
- Self-Consumption Mode: Generated solar energy prioritizes local loads, with excess power stored in the battery.
- Grid-Feed Mode (Grid-Tie with Backup): Where policies allow and with appropriate configuration, excess solar or battery power can be fed back to the public grid (this feature requires confirmation of specific model support and local grid-tie policies).
Intelligent Management and Monitoring
- Local Display Screen: Intuitively displays various system operation parameters, power flow diagrams, fault diagnostic information, etc., allowing users to understand system status and perform basic settings in real-time.
- Communication Interfaces and Remote Monitoring: High-end models typically feature RS485, CAN, Wi-Fi, or Ethernet communication interfaces (specific configurations vary by model). These can connect to data collectors or cloud platforms, enabling remote monitoring, parameter configuration, firmware upgrades, and fault early warning functions, enhancing maintenance convenience.
High Reliability and Multiple Safety Protections
- Comprehensive Electrical Protection: Built-in overload protection, output short-circuit protection, over-temperature protection, input over/under-voltage protection, battery overcharge/over-discharge protection, reverse connection protection, and other multiple electrical protection mechanisms ensure the safety of the system and connected equipment.
- Precise BMS Management: Advanced Battery Management System (BMS) provides millisecond-level monitoring and intelligent management of the energy storage battery, ensuring the battery operates under optimal conditions and extending service life.
Flexible System Expandability
- Battery Capacity Expansion: Supports connecting additional Candtech-certified battery modules to expand the total capacity of the energy storage system, meeting future growth in energy demands. (“Expandable battery capacity” is explicitly mentioned in the specifications).
- Parallel Functionality: Some advanced models may support parallel operation of multiple units to increase total output power or achieve three-phase power output, meeting larger-scale energy demands (check specific model support for this feature).