Regitec RMH72/550S1 – 550W PERC Half-Cell Solar Panel (72 half-cell)

The Regitec RMH72/550S1 is a 550W high-output PERC half-cell module engineered for commercial/C&I rooftops, ground mounts, and large residential arrays. Strong STC/NOCT performance, rugged construction, and pallet-friendly logistics help reduce BOS costs while delivering dependable kWh in real-world conditions.

Key Benefits

• High power density (550W): Fewer modules, rails, clamps, and home-runs per kW.

• PERC half-cell design: Lower resistive losses, better shade tolerance, solid low-light response.

• Rugged build: 3.2 mm tempered, AR-coated front glass; IP68 junction box; MC4-compatible connectors.

• Mechanical strength: Front 5400 Pa / Rear 2400 Pa load ratings.

• Extended protection: 25-year product and 30-year linear performance warranty.

• Installer logistics: 31 panels per pallet; simple planning and freight.

Specifications (at a glance)

• Model: RMH72/550S1

• Rated Power (Pmax): 550 W (STC) — 416 W (NOCT)

• Module Efficiency: 21.3% (STC)

• Cell Technology / Count: Mono PERC, 144 half-cells (182 mm)

• Electrical (STC): Voc 49.90 V, Isc 14.00 A, Vmp 41.96 V, Imp 13.11 A

• Electrical (NOCT): Voc 46.68 V, Isc 11.17 A, Vmp 39.43 V, Imp 10.55 A

• Max System Voltage: 1500 Vdc (IEC/UL)

• Series Fuse Rating: 25 A

• Temperature Coefficients: Pmax −0.350%/°C; Voc −0.275%/°C; Isc +0.045%/°C

• Operating Temperature: −40 to +85 °C | NOCT: 45 ± 2 °C

• Dimensions (L × W × H): 89.72 × 44.65 × 1.38 in (2279 × 1134 × 35 mm)

• Weight: ~63.05 lb (28.6 kg)

• Front Glass: 3.2 mm tempered, anti-reflective

• Frame: Anodized aluminum

• Junction Box: IP68

• Connectors / Leads: MC4-compatible; 4.0 mm², ~47.24 in (+/–)

• Palletization: 31 pcs/pallet; 20’ GP: 155 pcs; 40’ HQ: 620 pcs

• Warranties: 25-yr product / 30-yr linear performance

• Quality Systems: ISO 9001, ISO 14001, OHSAS 18001; RoHS lead-free

Ideal Applications

• Commercial & industrial rooftops targeting faster installs and lower BOS

• Ground mounts / carports where higher wattage reduces structure and wiring

• Large residential arrays with limited roof area and high kWh goals

Compatibility & Design Notes

• Inverters/MLPE: Use inverters, optimizers, or microinverters rated for ≥550 W input and within Voc/Isc limits above.

• Rapid Shutdown: Pair with UL-listed MLPE per local code.

• Racking: Compatible with mainstream roof and ground systems; follow clamp zones and load ratings.

• Stringing: Validate series count at site low temps (Voc) and within inverter max DC/MPPT current windows.