APsystems Male and Female MC4 Caps


SKU: APS MC4 Cap Category:

Order requirement

APsystems components are sold in packages only, a package must include a minimum of 5 microinverters

Volume discount pricing

Wholesale pricing available on orders of 30 microinverters or more

Use the pair of Male and Female MC4 Caps to cover and protect unused connectors on the YC600Y and QS1 microinverters. APsystems recommends using a pair of these caps to prevent water and dust from damaging the unused connector or the inverter. They come in pairs,  the male cap is to protect MC4 female connectors and the female cap to protect MC4 male connectors. The caps are interchangeable between the YC600Y and QS1 inverters.



APSystems is an American company with offices in Seattle, Washington. They have become a global leader in the development, manufacturing and marketing of mircoinverters. APSystems offers an user-friendly monitoring interface and continues to develop new software and power electronics for the solar industry. APsystems offers advanced, powerful solar microinverter technology for residential and commercial systems. The APsystems microinverter solution combines highly efficient power inversion with a monitoring interface to bring you reliable, intelligent energy. Their proprietary system architecture increases solar harvest and ensures maximum output for solar arrays, and they continue to develop new technologies and products for the marketplace. APsystems ranks second in global market share among independent microinverter suppliers. Dedicated support to their certified installers is offered from their Seattle office.