KNOX ASW13K-LT-G2 (pV 19.5kW) 26A/26A-ISC 40A-40A

✅ What is ASW 13K-LT-G2 — main specs & features

• It is a 13 kW three-phase on-grid solar inverter, intended for larger residential / small-commercial solar PV installations. 

• Max PV array support (DC side): up to ~19,500 Wp STC. 

• MPPT / Input side:

  • Dual MPPT inputs (two independent MPPT strings), giving flexibility if you have solar panel arrays split across different roof orientations or partial shading. 

  • Wide MPPT/DC-input voltage range: 150 V to 1000 V (with rated input ~630 V) — this gives good flexibility for various panel configs and supports high-voltage panel strings. 

• AC output side:

  • Rated output power: 13,000 W (13 kW), three-phase feed-in — suitable for heavy household loads or small business supply. 

  • Compatible with common nominal grid voltages / configurations: 220/380 V, 230/400 V, 240/415 V. 

  • Maximum output current: ~20.7 A (at rated output) Power factor at rated output: 1 (adjustable displacement ±0.8 in dynamic conditions) 

  • Total harmonic distortion (THD) when rated load: < 3% — i.e. clean, stable output. 

• Efficiency & Performance:

  • Maximum conversion efficiency: ~98.6%. 

  • European (weighted) efficiency: ~98.2%.

• Build / Protection / Durability:

  • IP65 (some sources list IP66) rating — dust- and waterproof housing suited for rooftop/outdoor installation under harsh weather.

  • Active cooling system — helps maintain performance and inverter lifespan even under high ambient temperatures (important for climates like Faisalabad). 

  • Supports communication interfaces: Wi-Fi + RS485 (some versions may allow LAN/4G) for remote monitoring / control. 

• General / Installation:

  • Dimensions: 503 × 435 × 183 mm; Weight: ~17.3 kg — relatively compact/light for a 13 kW inverter, wall-mountable. 

  • Operating temperature: –25 °C to +60 °C — wide ambient tolerance, important under Pakistani weather conditions. 

  • Self-consumption (night / when no load) is very low (< 1 W) — good for energy efficiency. 

✅ In short: ASW 13K-LT-G2 is a serious, high-capacity on-grid inverter built for large-scale solar setups — with strong flexibility, efficiency, modern protections and remote monitoring capabilities.

🎯 What this inverter means in practice — When it's a good fit

You should consider this inverter if:

• You plan a relatively large solar PV system — say ~15–20 kWp of panels (or up to ~19.5 kWp as supported) — giving you ample headroom for solar generation.

• Your electricity demand is high — multiple AC units, heavy appliances, maybe small-business loads — such that a 13 kW supply makes sense rather than basic 5–8 kW.

• You want flexibility in solar panel layout — e.g. panels on different roof faces/tilts; dual-MPPT helps optimize yield under varying orientation or partial shading.

• You want stable, clean three-phase AC output — good for balancing load across phases and avoiding overloading a single phase (often a concern in Pakistani domestic wiring).

• You want durable, rooftop-friendly equipment — IP65 housing, active cooling, wide temperature tolerance makes it a good match for outdoor rooftop installation in hot/dusty climate (like Faisalabad).

• You value remote monitoring and future-proofing — Wi-Fi / RS485 connectivity helps track performance, spot issues, and maintain system easily over long term.

Hence, ASW 13K-LT-G2 is best suited for mid-to-large scale rooftop solar systems or small/commercial solar installations — not just for a small home trying to offset basic load.

⚠️ Important Considerations / What to Check Before Getting It

• This is an on-grid inverter: to fully benefit you need a reliable grid connection (or net-metering/export), or else excess production can’t be stored unless you add battery + hybrid system.

• For ~19 kWp PV you’ll need sufficient roof area and proper orientation/tilt — otherwise you may not achieve optimal yield.

• Installation quality (panel string wiring, earthing/grounding, correct configuration) matters more with high-capacity inverters — poor installation may reduce efficiency or safety.

• If you foresee future expansion beyond ~20 kWp, heavy load spikes, high surge or backup needs, best to check if this inverter still suits or whether a hybrid + battery (or even higher capacity inverter) would be wiser.

• Make sure local regulations, net-metering policies, wiring standards (three-phase supply) are compatible.

✅ My View (For a Place like Faisalabad / Typical Pakistani Home/Small Business)

If you have a large house or small business in Faisalabad with high energy demand, and you plan a substantial PV array (>15 kWp) — ASW 13K-LT-G2 is an excellent, future-proof choice.
It gives strong balance of power, efficiency, flexibility and durability, and under proper installation it can serve reliably for several years.