Import 30kw Off Grid Inverter With Csa/Ul Approved — Buy in wholesale FOB from Supplier in China

The Zhejiang Sandi Electric SDP series 30 kW off-grid pure sine wave inverter converts DC battery or solar input into 120/240 V split-phase AC output for standalone power systems. CSA and UL1741 safety certifications confirm compliance with North American electrical codes, a critical threshold for import into the United States and Canada. The unit employs a low-frequency transformer topology with a sixth-generation Mitsubishi IPM intelligent module, achieving maximum conversion efficiency of 94 percent under optimal conditions and over 85 percent at 48 VDC nominal input. Output voltage accuracy is maintained within ±1 percent, with user-adjustable set points from -40 percent to +20 percent of rated voltage via an integrated LCD panel.

Construction centres on a steel housing with copper windings, printed circuit board assembly, and electrolytic capacitors. The input voltage range is field-selectable across three bands: 150-400 V, 300-600 V, or 400-800 VDC, allowing system integrators to match the inverter to existing PV array or battery bank configurations without external charge controllers. A black pure-aluminium radiator provides thermal management. Protection circuits cover short-circuit, overload, and over-temperature conditions. The design omits the need for a separate battery and solar charge controller when paired with MPPT-enabled wide-voltage input, reducing balance-of-system costs.

Target buyers include renewable energy distributors, EPC contractors, and project developers serving off-grid residential, commercial, and industrial sites in North America and comparable jurisdictions. Applications span remote pastoral and island communities, telecom relay stations, mobile vehicle power, and marine installations where grid extension is uneconomical. The LCD displays real-time DC input voltage, output frequencyila frequency, phase voltage and current, AC bypass input voltage, cumulative output energy in kWh, date, temperature, and fault codes. Importers should verify that local grid-interconnection rules accept UL1741-SA or CSA C22.2 certification stamps, and confirm whether firmware revisions are current for anti-islanding compliance.

Zhejiang Sandi Electric Co., Ltd. is headquartered at Building 13-2 Botong Huigu, No. 66 Binhai South Four Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province, 325600, China. The company operates from a manufacturing and engineering base in the Yueqing industrial corridor, a region with established supply chains for low-voltage electrical equipment and power electronics. Its trust tier is classified as harbour, the most basic verification level, and the response rate stands at 0.00 percent with an average response time of zero hours recorded, indicating no inbound buyer engagement has been registered through the platform channel.

The supplier's product catalogue focuses on DC-AC power conversion equipment, specifically off-grid and hybrid solar inverters in the 1 kW to 30 kW range. The SDP series represents its flagship line for export markets, with CSA and UL1741 marking for North American compliance. The listing does not state ISO9001, ISO14001, or IEC62109 certification status, nor does it disclose factory floor space, R&D headcount, annual revenue, or named clients. Buyers seeking supply-chain transparency should request a factory audit report, quality management system certificate, and reference projects before committing to volume orders.