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High-efficiency energy storage, smart energy. Explore the innovation Product Center and open up a new future for green energy

120-180kW Photovoltaic Combiner Cabinet

120-180kW Photovoltaic Combiner Cabinet

Power Range
120 – 180 kW

MPPT Efficiency
≥ 99%

Input Strings
8 – 16

Protection
IP55

System Voltage
1000/1500 V

Communication
4G · RS485

Custom Power
50kW–1MW

Description

⚡ IMAXPWR · Original Manufacturer

120-180kW Photovoltaic Combiner Cabinet

PV Combiner & Charging Cabinet for Commercial & Utility Solar
MPPT efficiency ≥99% · 8–16 input strings · 1000V/1500V system voltage · IP55 outdoor rated · Cloud-based monitoring & AI predictive maintenance
Power Range120 – 180 kW
MPPT Efficiency≥ 99%
Input Strings8 – 16
ProtectionIP55

The IMAXPWR 120–180kW Photovoltaic Combiner Cabinet integrates MPPT tracking, multi‑string combining, and active circuit protection into a single, rugged enclosure. Featuring ≥99% MPPT efficiency and support for 8–16 PV strings, it maximizes solar harvest while simplifying system architecture. With IP55 outdoor rating, 4G/RS485 cloud connectivity, and AI‑powered fault prediction, this cabinet delivers reliable, high‑yield performance for commercial rooftops, ground‑mount plants, and solar‑plus‑storage projects.

📈
MPPT Efficiency
≥ 99%
🔗
Input Strings
8 – 16
System Voltage
1000 / 1500 V
🛡️
Protection
IP55
🌐
Communication
4G · RS485
🔧
Custom Power
50 kW – 1 MW

Technical Core

MPPT + Combiner + Protection in One

The IMAXPWR Photovoltaic Combiner Cabinet integrates multi‑channel MPPT tracking, low‑loss busbar combining, and active circuit protection into a single, rugged enclosure. Supports 8 to 16 PV input strings with independent overcurrent and surge protection for each branch.

Built for 1000V / 1500V DC systems, the cabinet uses DSP digital control and resonant soft‑switching technology to achieve ≥99% MPPT conversion efficiency, boosting total generation by 15–25% under real‑world conditions.

Application Positioning

Where It Excels

  • ☀️ Large‑scale ground‑mount PV plants
  • 🏢 Commercial & industrial rooftop solar
  • 🔋 Solar‑plus‑storage integrated systems
  • 🌍 Microgrids and remote off‑grid sites
  • PV‑EV charging hub infrastructure

Product Advantages

📈
Industry‑Leading Efficiency

MPPT conversion ≥99% via DSP + resonant soft‑switching · adds up to 50,000 kWh/year for a single 1000V cabinet

🌐
Smart Connectivity

4G + RS485 communication · cloud SCADA monitoring · AI‑based predictive maintenance and fault alerts

🛡️
Comprehensive Protection

IP55 outdoor rated · independent branch breakers (0.1s trip) · surge arrestors · anti‑reverse diodes · arc‑proof design

🔧
Flexible & Modular

Power range 50kW – 1MW · 1000V/1500V options · 8–16 input strings · plug‑and‑play interfaces for rapid deployment

Technical Specifications

Parameter Specification
Power Range 120 – 180 kW (customizable 50 kW – 1 MW)
MPPT Efficiency ≥ 99%
Input Strings 8 – 16 (modular expansion)
System Voltage 1000 V / 1500 V DC
Enclosure Rating IP55 (outdoor rated, dust & water resistant)
Communication 4G, RS485, optional Ethernet
Protection Functions Overcurrent, short‑circuit, surge, reverse‑polarity, arc‑fault
Cooling Forced air (temperature controlled)
Operating Temp. -25 °C ~ +60 °C
Certifications CE, IEC 61439, GB/T 7251

Application Areas

🏞️
Utility Ground‑Mount Plants
🏢
Commercial Rooftop Solar
🔋
PV + BESS Integration
🌍
Microgrid & Off‑Grid Sites
Solar‑Powered EV Charging
🏭
Industrial Self‑Consumption

System Topology & Energy Flow

PV Strings
8–16 inputs
Combiner Cabinet
MPPT · Busbar · Protection
Inverter /
BESS
Step 1
☀️ Solar Harvest
8–16 strings input
Step 2
⚡ MPPT & Combining
≥99% efficiency · busbar integration
Step 3
🔌 Output
Stable DC to inverter / battery

Protection & Safety Features

Overcurrent Protection
Branch breakers · 0.1s trip
⛈️
Surge & Lightning
Type 1+2 surge arrestors
🔄
Reverse‑Polarity
Anti‑reverse diodes
🔥
Arc‑Fault Protection
High‑energy arc containment
🌧️
Environmental
IP55 · -25°C ~ +60°C
🛡️
Insulation Monitoring
Ground fault detection

Maintenance & Service

🔧 Routine Maintenance
  • • Quarterly visual & thermal inspection
  • • Cleaning of air filters & heatsinks
  • • Torque check on all busbar connections
  • • Firmware update and diagnostic log review
⚠️ Troubleshooting
  • • LED / HMI fault indication codes
  • • Communication link validation
  • • Branch string current & voltage analysis
  • • Remote diagnostic via cloud portal
📞 Technical Support
  • • Engineering consultation & design
  • • Customization for voltage/power/strings
  • • On‑site commissioning & training
  • • Spare parts and extended warranty

Frequently Asked Questions

How many PV strings can this combiner cabinet handle?
It supports 8 to 16 input strings with individual branch protection. The modular design allows expansion for larger systems.
Is the cabinet suitable for outdoor installation?
Yes, the IP55‑rated enclosure is designed for direct outdoor mounting, including rain, dust, and wide temperature ranges (-25°C to +60°C).
What communication protocols are available?
Standard 4G cellular and RS485; Ethernet optional. All connect to a cloud‑based SCADA platform for real‑time monitoring and AI‑powered alerts.
Can the system be customized for my project voltage?
Yes, we offer 1000V and 1500V DC system voltage versions, and the power range can be tailored from 50kW up to 1MW.
Does IMAXPWR provide installation and commissioning support?
Absolutely. We offer full on‑site commissioning, training, and remote technical assistance as part of our standard service package.
How does the MPPT efficiency compare to standard inverters?
Our DSP‑based MPPT achieves ≥99% efficiency, typically 15–25% higher than conventional designs, especially under partial shading conditions.
What certifications does the combiner cabinet hold?
It is CE certified and complies with IEC 61439 and GB/T 7251 standards for low‑voltage switchgear and controlgear assemblies.

Related Products

50kW Combiner Cabinet
8-string · 1000V
250kW Combiner
16-string · 1500V · outdoor
PV Combiner Box
4-string · IP65
500kW BESS Cabinet
Integrated storage + combiner

About IMAXPWR

ImaxPWR (Imax Power Technology Co., Ltd.) is a national high‑tech enterprise specializing in new energy solutions. As an original equipment manufacturer, we provide integrated energy storage products and system solutions covering bidirectional PCS, DC/DC converters, energy management systems and energy storage cabinet integration.

Driven by technology innovation and quality control, ImaxPWR supports global customers in grid, microgrid, renewable energy and charging infrastructure applications with reliable and customized energy solutions.

Contact
Imax Power Technology Co., Ltd.
Shenzhen, China

 

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