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7471 Edgar Industrial Bend, Unit 11, Red Deer, AB T4P 3Z5
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Morningstar

Morningstar SureSine 300W Off-Grid Inverter

SKU: SI-300-115V-UL

The Morningstar SI-300-115V-UL SureSine is a 300 W pure sine wave off-grid inverter delivering 115 VAC single-phase output at 60 Hz with 92% efficiency. It surges to 600 W for 15 minutes and features a rugged cast anodized aluminum enclosure with conformal-coated PCBs for reliable performance in harsh Canadian environments.

Original price was: $520.00.Current price is: $494.00.

or $43.42/mo for 12 mo at 9.96% APR with Affirm.

Available to ship 4 ready to ship

Ships in 1–3 business days.

Delivers in 2–5 business days

Available for pickup 3 locations

Pickup across our network

Ready for pickup as early as Mon, Oct 19

— we’ll tell you about drops and promotions.

The Morningstar SI-300-115V-UL SureSine SI-300 is a 300 W off-grid pure sine wave inverter producing 115 VAC single-phase power at 60 Hz ±0.1% with 92% efficiency. Built for demanding installations, it surges to 600 W for 15 minutes and houses its electronics in a cast anodized aluminum enclosure with tropicalized PCBs, making it suited to remote power systems, cabins, and telecom sites operating in extreme climates.

Key Features:

  • 300 W continuous, 600 W surge for 15 minutes
  • Pure sine wave, 92% efficiency
  • 115 VAC single-phase output at 60 Hz ±0.1%
  • Selectable LVD 10.5 V or 11.5 V, reconnect 11.6/12.6 V
  • High voltage disconnect 15.5 V, reconnect 14.5 V
  • Cast anodized aluminum enclosure, IP20 rated
  • Ethernet, USB, and remote on/off communication
  • Operating temp -40°F to 113°F
  • DC wire 14 to 2 AWG, AC wire 12 AWG
  • CE, UL 458, FCC certified, 2-year warranty

Ideal for off-grid cabins, remote monitoring, and telecom applications requiring clean AC power. Its conformal-coated boards and epoxy-encapsulated transformer suit harsh, high-humidity Canadian environments, while Ethernet, USB, and remote on/off inputs integrate it into managed power systems. Order the SI-300-115V-UL (also listed as SI300115VUL) from Circuit Solar, in stock in Canada and shipped from Red Deer, AB.

SI-300-115V-UL · 2 files.

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