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-6% SaleDelivers 8.5kW continuous pure sine wave power with dual 500V MPPT inputs, battery-less operation, and smart dual-load automation.
The Knox Argon 8500 is a heavy-duty 48V single-phase hybrid solar inverter engineered for high-demand residential, agricultural, and commercial backup setups. Built around an 8.5kVA / 8.5kW continuous pure sine wave output stage with a power factor of 1.0, this unit handles heavy inductive surges up to 17,000VA. It solves the issue of frequent load shedding, erratic grid voltages (operating across 90VAC to 280VAC), and high peak utility tariffs by intelligently prioritizing solar production, battery storage, and utility bypass. Equipped with dual independent MPPT trackers capable of processing up to 10,000W of total solar input (5,000W per tracker at up to 500VDC), the Argon 8500 maximizes solar harvesting across split roof orientations. It also features battery-less operational capability, allowing daytime loads to run entirely on live PV generation and grid support when no battery is installed. ## Key Engineering Advantages - Dual AC Output for Smart Load Management: Features dedicated primary (8.5kW) and secondary (5kW) output terminals. During extended outages or low battery states, the inverter automatically sheds non-critical circuits connected to the second output while keeping critical loads active. - Dual 500VDC MPPT Channels: Dual high-voltage trackers (27A input current each) allow installation of two independent solar strings, accommodating partial shading and opposing east/west roof orientations without string mismatch losses. - Advanced Battery Protocol & Activation: Features dedicated RS485 communication with LiFePO4 batteries, automated BMS wake-up via PV or utility current, and customizable CC/CV and equalization curves for flooded or sealed lead-acid chemistries. - Parallel Scalability: Supports parallel linking of up to 6 units, allowing system expansion up to 51kW for heavy residential or commercial single-phase and three-phase power demands. ## Compatibility & Application The Argon 8500 pairs directly with standard 48V battery systems, including 15S and 16S LiFePO4 lithium modules, tubular batteries, and deep-cycle lead-carbon banks. Its transfer time (10ms for computers, 20ms for appliances) prevents desktops, networking servers, and refrigeration hardware from rebooting during grid failures. Detachable magnetic dust filters protect internal fans and heat sinks in dusty, high-humidity environments. ## Package Contents - 1x Knox Argon 8500 Hybrid Solar Inverter - 1x Detachable Dust Filter Assembly - 1x Wi-Fi Data Logging Antenna Module - 1x RS232 / Communication Cable Kit - 1x Mounting Bracket & Hardware Set - 1x User Manual & Wiring Guide
Zener Authenticity Promise: All sitemarks, models, and technical statistics are registered with the factory and verified in our physical laboratory before sale.
Dual MPPT Solar Tracking: Two independent 500V / 27A MPPT inputs maximize energy harvest across different roof azimuths and string lengths.
Battery-Less Running Mode: Operates loads directly using live solar panels and grid power simultaneously without requiring a connected battery bank.
Active Lithium Battery Wake-Up: Sends pulsed DC activation signals through PV or grid input to revive lithium BMS modules locked in low-voltage disconnect.
Detachable Harsh-Environment Dust Filters: Prevents airborne debris and lint from settling on high-power MOSFETs and transformers, reducing thermal throttling.
Integrated Wi-Fi Cloud Monitoring: Built-in wireless transmitter connects to local networks for real-time mobile app diagnostics and parameter adjustments.
With a maximum discharge current of 180A and charge current of 140A, install minimum 50mm² (1/0 AWG) flexible copper DC cables with a 200A DC circuit breaker within 1.5 meters of the battery terminals.
Connect your essential baseline loads (lights, fans, internet routers, refrigerators) to Output 1, and heavy intermittent loads (air conditioners, water pumps) to Output 2 to prevent abrupt battery drain during power outages.
Keep each MPPT string voltage between 250VDC and 420VDC under hot operating conditions to keep the dual MPPT tracker in its peak efficiency curve while remaining well below the 500V absolute open-circuit limit.
Clean the detachable side dust filters every 30 to 45 days in high-dust regions to maintain optimal convective airflow and prevent thermal derating during peak summer months.
A1: Yes, the Knox Argon 8500 operates in battery-less mode by using live solar power and grid bypass to power connected appliances directly. Solar input must be above 120VDC to ensure stable voltage regulation during sudden load changes.
A2: The inverter delivers 8,500W continuous output with a 17,000VA surge capacity, allowing it to start and run two 1.5-ton inverter air conditioners, a 1HP water pump, a double-door refrigerator, and typical household lighting simultaneously. Always wire non-critical high-draw items to the secondary AC output for automated shedding during outages.
A3: Yes, the Argon 8500 provides native RS485 communication protocols to interface directly with major LiFePO4 battery management systems (BMS). It also features an automated activation function that delivers small DC charge currents to wake up sleeping lithium batteries locked by BMS undervoltage protection.
A4: Dual MPPT allows you to connect two separate strings of solar panels with different wattages, orientations, or tilt angles without losing efficiency from string mismatch. Each tracker accepts up to 27A input current and 5,000W of solar panel capacity.
A5: Yes, up to 6 Knox Argon 8500 units can be paralleled using optional communication cards and parallel cables. This allows scalable expansion up to 51kW for heavy single-phase setups or synchronized three-phase 400V grid configurations.
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