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TERMS AND CONDITIONS OVERVIEW This website/application is operated by Sigineer team. Throughout the website/application, the terms “we”, “us” and “our” refer to Sigineer team. Sigineer offers this website/application, including all information, tools and services available from this site to you, the user, conditioned upon your acceptance of all terms, conditions, policies and notices stated here. […]


SHIPPING INFORMATION Our goal is to offer you the best shipping options, no matter where you live. We deliver to hundreds of customers across the world every day, and we strive to provide you with services of the highest level. We ship worldwide, but some countries are not eligible for free shipping. The time frame […]


Return Policy Cancellation We accept order cancellation before the product is shipped or produced. If the order is cancelled you will get full refund. We cannot cancel the order if the product is already shipped out. Returns (if applicable) We accept return of products. Customers have the right to apply for a return within 14 days […]

Important wiring instruction for split phase inverter chargers with floating neutral

Important wiring instruction for split phase inverter chargers with floating neutral You may have come across the terms “floating” and “bonded” neutral. While they sound obscure to most people knowing little about electrical engineering, they are an important factor when hooking up inverter chargers. For Sigineer Power’s split phase inverter chargers, they are NOT UL1741 […]

Dry Contacts Providing AC Output Frequency Switch Between 60Hz / 62.5Hz

The power output of the Grid Tie Inverter varies with the sensed frequency of the waveform provided by the battery-based inverter. SMA defines this as Frequency-Shift Power Control (FSPC), Schneider calls this Active Frequency Shift Power Curtailment (AFSPC) and SolarEdge presents this as Power Control Option → P(f). Currently, some of Sigineer Power’s US version […]

Power inverter charger DC / AC fan operation

Sigineer inverter chargers are built with intelligent fans which will operate only when needed. For 1-3KW models, there is one multiple controlled DC fan. For 4-6KW models, there are two DC fans or one DC fan one AC fan. For 8-15KW models, there are two multiple controlled DC fans and one AC fan. The DC […]

Difference between UL458 & UL 1741 For Power Inverters

Difference between UL458 & UL 1741 For Power Inverters According to the National Electrical Code, batteryless (on grid) or battery-based (off grid / hybrid) power inverter used in residential renewable energy systems must be listed to UL1741. While UL458 is the safety standard for Power Converters/Inverters and Power Converter/ Inverter Systems for Land Vehicles and […]