Description
BIPV200K8 200kW Wall-Mounted Solar MPPT Controller
ImaxPWR – 200kW DC-Coupled Solar-Storage Controller with 16 PV Inputs, 8 MPPTs and 99.26% Peak Efficiency
📋 Product Introduction
The BIPV200K8 is a 200kW wall-mounted solar MPPT controller independently developed by ImaxPWR Power Co., Ltd. for small and medium-sized DC-coupled solar-storage microgrids. It combines a wide PV input voltage window with an independently regulated high-voltage DC bus, so the battery voltage is decoupled from the PV array configuration and remains stable even as string voltage varies.
The unit is rated at 200kW with 16 PV inputs and 8 independent MPPTs, a maximum branch current of 18A × 16, and a peak conversion efficiency of 99.26%. With IP65 ingress protection and C5-M corrosion resistance, it is engineered for long-term outdoor operation in coastal high-salt-spray and high-humidity environments. According to the BIPV200K8 User Manual V1.0, the controller has been tested against IEC 62477-1, IEC 62109-1 and EMC requirements, and enters derated operation automatically above 45°C ambient or 2,000m altitude. Multiple units can be paralleled through the EMS (RS485) and battery (CAN/RS485) interfaces to scale system capacity.
In a DC-coupled architecture, PV strings are boosted directly onto the battery DC bus rather than being converted to AC first. This removes the PV inverter and the AC/DC combiner stage that a conventional AC-coupled system requires, so less equipment sits in the energy path and fewer conversion steps lose energy. For a 200kW array, a one-percentage-point efficiency gain translates into roughly 2kW of continuous power that would otherwise be dissipated as heat over an eight-hour generation window. According to IEC 62477-1, converter safety is assessed against overvoltage category and pollution degree at the installed location; the BIPV200K8’s IP65 and C5-M ratings are chosen so the enclosure meets those expectations in outdoor industrial settings.
✨ Core Product Advantages
⚡ 99.26% Peak Efficiency
High-voltage side rated at 700V with a 288A maximum current. Standby loss is below 15W and no-load loss below 100W, cutting long-term operating energy losses in continuously cycling storage systems.
🌌 8 Independent MPPTs
16 PV inputs mapped to 8 MPPTs, each rated 36A with a 39.6A short-circuit current. Independent tracking adapts to strings at different orientations and power levels, raising system-wide PV utilization across an entire array.
📐 Wide Voltage Range Design
PV open-circuit voltage spans 200V-1000V with an MPPT window of 200V-900V and a high-voltage side of 400V-950V. Battery voltage is unaffected by PV configuration, giving system designers more freedom in string sizing.
🌦 IP65 + C5-M Outdoor Rating
IP65 ingress protection and C5-M corrosion resistance support continuous operation from -30°C to 60°C (derated above 45°C), 5%-95% humidity and up to 4,000m altitude (derated above 2,000m) in weak-grid and harsh environments.
🛡 Multiple Safety Protections
Integrated over-temperature, over-current, over-voltage and ground-fault short-circuit protection, paired with a soft-start circuit that limits inrush current during system power-up and protects downstream battery and inverter equipment.
🌬 Intelligent Forced-Air Cooling & Wall Mounting
Intelligent forced-air cooling keeps component temperatures within design limits while limiting fan noise. The 765 × 597 × 266mm enclosure weighs about 60kg and mounts on a wall, saving floor space and simplifying deployment.
📋 System Core Parameters
| Category | Parameter | BIPV200K8 |
|---|---|---|
| PV Side Parameters | Rated Power | 200kW |
| PV Open-Circuit Voltage Range | 200V-1000V | |
| MPPT Voltage Range | 200V-900V | |
| Rated Voltage / Start-Up Voltage | 700V / 250V | |
| PV Input Branches | 16 | |
| Max PV Branch Current | 18A × 16 | |
| MPPT Quantity / MPPT Current | 8 / 36A × 8 | |
| MPPT Short-Circuit Current | 39.6A × 8 | |
| High-Voltage Side Parameters | Voltage Range | 400V-950V |
| Rated Voltage | 700V | |
| Max Current | 288A | |
| System Parameters | Communication Ports | EMS — RS485; Battery — CAN or RS485 |
| DI / DO | DI 4 channels, DO 4 channels | |
| Peak Efficiency | 99.26% | |
| Losses | Standby <15W, No-load <100W | |
| Ingress / Corrosion Protection | IP65 / C5-M | |
| Cooling Method | Intelligent forced-air cooling | |
| Weight / Dimensions (W×L×H) | Approx. 60kg / 765×597×266mm | |
| Protection / Soft-Start | Over-temp, over-current, over-voltage, ground-fault short circuit / Supported | |
| Environment & Compliance | Operating Temperature | -30°C to 60°C (derated above 45°C) |
| Humidity / Altitude | 5%-95% / 4,000m (derated above 2,000m) | |
| Certification | IEC 62477, IEC 62109, EMC |
Note: Parameters are taken from the BIPV200K8 200kW Wall-Mounted Solar Controller User Manual V1.0. Final selection is subject to the signed technical agreement. Reference standards: IEC 62477-1 (safety requirements for power electronic converter systems), IEC 62109-1 (safety of power converters for use in photovoltaic power systems), and the National Standards Full-Text Public System.
🔧 Selection Notes
When sizing the BIPV200K8, match the PV array’s maximum open-circuit voltage to the 200V-1000V window and confirm the MPPT operating point stays inside 200V-900V across the full expected temperature range. Because the high-voltage side tolerates 400V-950V independently, the battery bank voltage does not constrain how many modules are placed in each string — a useful property when retrofitting an existing array whose string length was fixed by an earlier inverter.
The 8 MPPTs are best used to group strings by orientation and shading profile rather than by physical proximity, since each tracker can pull its own operating point. On a large rooftop with east, west and south sections, this keeps one shaded section from dragging down the output of every other string. With 16 inputs available, a designer can keep per-branch current at or below 18A while maintaining enough parallel capacity to reach the 200kW rating without stranding any tracker.
Because peak efficiency of 99.26% is only reached near rated operating voltage, check the expected duty cycle of the site. Systems that sit idle for long periods also benefit from the sub-15W standby and sub-100W no-load losses, which reduce parasitic drain on the battery bank during overnight and low-generation hours.
Installation follows the wall-mounted form factor: the 60kg enclosure is fastened to a vertical surface with adequate clearance for the forced-air path, and the IP65 sealing means it does not need a separate cabinet or weather shelter. Field wiring terminates at the PV rotary switches, the BAT+ / BAT− output lugs and the RJ45 debug port, so commissioning can be completed with standard cable lugs (SC95-12 or RNB100-12 for the battery side) rather than custom hardware. For sites that will grow, plan the bus and protection around the eventual parallel count of controllers from the start, since capacity is added by stacking units on the shared DC bus rather than by replacing the controller.
📐 Power & Temperature Derating
The BIPV200K8 implements both a power derating curve (as a function of PV voltage) and a temperature derating curve. According to the BIPV200K8 User Manual V1.0, temperature derating begins above 45°C ambient, and altitude derating begins above 2,000m. During system sizing, reserve derating margin for the project site’s extreme high-temperature and altitude conditions to avoid over-temperature protection tripping during full-power operation.
🔌 Ports and Cable Selection
| Port | Function | Recommended Cable |
|---|---|---|
| RJ45 Waterproof Port | Debug (M_CANL / M_CANH / GND / SCI_TX / SCI_RX) | CAT6 communication cable, RJ45 waterproof plug CS-RJ45-R05 |
| PV Rotary Switch 1/2 | Controls DC input terminals PV1-PV8 / PV9-PV16 | — |
| BAT Side Cable Port | BAT+ / BAT− DC output | SC95-12 lug (95mm²) or RNB100-12 lug (120mm²) |
| PV Input Terminals | PV1-PV16 DC input | 5mm² PV cable recommended |
| Enclosure Grounding | Grounding | OT lug RNB22-6S, 10mm² cable recommended |
| Communication Ports | EMS (RS485), battery (CAN/RS485), DI/DO | J2/J3: CAT6 cable; J4: US-standard 22# wire |
Note: The cable selection table is a recommendation and may be adjusted for actual conditions. Installation must be performed by qualified personnel in accordance with the user manual.
🌎 Typical Application Scenarios
🏭 Commercial & Industrial Distributed Solar-Storage
Suits campus and factory rooftop PV installations. Eight MPPTs match strings across multiple orientations, while IP65 protection allows outdoor wall mounting and reduces both investment and O&M cost.
🔌 Small & Medium Storage Microgrids
Built for DC-coupled microgrids, the controller supports paralleling multiple units to expand capacity and redundancy, improving supply reliability.
🌊 Coastal High-Salt-Spray & High-Humidity Areas
C5-M corrosion resistance plus IP65 protection sustain long-term stable operation in seaside high-salt-spray and high-humidity environments.
🏔 Remote Off-Grid Power Supply
Wide voltage range and -30°C to 60°C operation suit plateau, desert and remote off-grid solar-storage sites.
📦 Related Products
Explore the full range in our Product Center and read our engineering guide to AC-coupled vs DC-coupled BESS architectures.
❓ Frequently Asked Questions
Q1: How many PV strings can the BIPV200K8 accept?
The BIPV200K8 provides 16 PV inputs and 8 independent MPPTs. Maximum branch current is 18A × 16 and MPPT current is 36A × 8, allowing it to serve PV arrays at different orientations and power levels across a single site.
Q2: Can the controller be installed in coastal high-salt-spray environments?
Yes. With IP65 ingress protection and C5-M corrosion resistance, the BIPV200K8 is designed for long-term outdoor operation in high-salt-spray and high-humidity coastal conditions, including seaside industrial sites.
Q3: Does output power reduce in high-temperature or high-altitude conditions?
Yes. Temperature derating starts above 45°C ambient, and altitude derating starts above 2,000m. When sizing, reserve power margin for the site’s extreme conditions; refer to the user manual derating curves for exact figures.
Q4: Does the BIPV200K8 support parallel operation?
Yes. Multiple units can be paralleled and networked through the EMS (RS485) and battery-side (CAN/RS485) communication interfaces to scale system capacity.
👤 About the Author
📞 Contact & Services
Contact: COCO | Tel / WhatsApp: +86-13760212825
Email: info@imaxpwr.com | Website: https://imax-pwr.com
Support: full-cycle warranty, professional after-sales service, on-site technical support and customized solution development worldwide.
Request the full product datasheet or a customized configuration for this product — contact us directly.
© 2026 ImaxPWR Power Co., Ltd. Product data sourced from the product user manual, IEC standards and engineering practice.
