Morningstar SI-300-115V-UL SureSine Wave Inverter 300 watt (115 volt, 60hz AC) For Sale

Morningstar SureSine SI-300-115V-UL | 300W 12VDC Pure Sine Wave Inverter | Off-Grid Solar Power

The Morningstar SureSine™ SI-300-115V-UL is a high-performance 300 watt pure sine wave inverter engineered for 12VDC off-grid solar systems. Built for reliability and efficiency, it’s ideal for remote cabins, RVs, boats, telecom systems, and rural electrification projects.

With no internal fan or moving parts, the SureSine is exceptionally durable and quiet—perfect for sensitive environments. It delivers clean, grid-quality AC power and handles surges up to 600W, making it suitable for demanding startup loads.

• Pure Sine Wave Output – Safe for sensitive electronics and appliances

• 300W Continuous / 600W Surge – Handles 200% surge for 10 minutes

• High Efficiency – Up to 92% peak efficiency

• Low Self-Consumption – Only 450mA at no load; 55mA in standby

• No Internal Fan – Silent operation and reduced failure risk

• Advanced Protections – Overload, short circuit, high temp, low/high voltage

• Tropicalized Design – Epoxy-encapsulated, conformal coated, anodized aluminum housing

• Selectable Output – 115VAC at 60Hz (UL listed Voltage: 10.0V – 15.5V DC

• Output Voltage: 115V ±10% AC (RMS)

• Frequency: 60Hz ±0.1%

• Waveform: Pure sine wave

• Dimensions: 8.4 x 6.0 x 4.1 in (213 x 152 x 105 mm)

• Weight: 10.0 lbs (4.5 kg)

• Enclosure: IP20 anodized aluminum

• Certifications: UL 458, cUL, CE (115V version only)

• Warranty: 2-Year Manufacturer Warranty

• DC Input: 2.5–35 mm² (14–2 AWG)

• AC Output: Up to 4 mm² (12 AWG)

• Remote On/Off: 0.25–1.0 mm² (24–16 AWG)

This inverter is a top-tier choice for small off-grid systems where reliability, efficiency, and clean power matter most. Ships from the USA with fast handling and expert support.