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Modular inverters offer several benefits compared to conventional, stand-alone inverters: They can be housed in a multi-unit chassis that can hold two or more inverters, which makes it easy to scale inverter capacity up or down; the chassis often has a small footprint, which preserves workspace; inverters can be added and removed while the other inverters in the chassis are operating; and using chassis-housed inverters typically delivers the most energy efficiency.
However, the reliability with which a power inverter delivers these benefits is partly determined by the modular inverter supplier that provides the equipment. With that in mind, let’s look at four important considerations for choosing a modular inverter supplier.
1. Vendor vs. Manufacturer
Manufacturers typically have a deeper insight into how their equipment works than vendors, who merely sell the equipment. Especially if you need pre-sale and/or post-sale technical support, it’s a good idea to buy straight from the manufacturer.
2. Product Certifications
Some product certifications are needed for regulatory compliance (e.g., RoHS), while others indicate key performance factors (e.g. NEBS Level 3). Because product certifications essentially serve as unique value propositions (UVPs) for the equipment that has them, vendors usually have a good understanding of what the certifications entail.
Vendors and manufacturers are equally preferable regarding knowledge of certifications. It comes down to choosing a supplier that offers the certifications you need for the type of inverter you require.
3. Product Warranty
The length of the product warranty can say a lot about the quality of an inverter. The manufacturer decides the warranty, and the terms are usually the best when the company knows it won’t lose much revenue on free replacements and repairs during the warranty period. A one-year warranty typically means the modular inverter supplier has good faith in the reliability of the equipment.
4. Custom vs. Stock
Most companies and organizations first try to address their needs with stock inverters that are assembled and ready to ship. They opt for a custom inverter if none of the stock models would work. Because a supplier who offers both options would as soon sell a custom model as sell a stock model, you can count on getting an inverter that truly matches your needs.
There are several considerations to make before you invest in the equipment of a modular inverter supplier, four of the most important of which are: whether the supplier is the manufacturer or simply a vendor, available product certifications, terms of the product warranty, and whether the supplier offers stock inverters, custom inverters, or both.
For assistance selecting the right modular inverter for your application, contact an experienced manufacturer of stock model and custom model power inverters today.