Schneider Electric NSB EK1020-2 Switch Accessories

Schneider Electric's NSB EK1020-2 Interlock Kit is a safety-switch accessory designed for Square D 100–200 A E-Series safety switches, providing a dedicated interlock assembly that pairs the switch mechanism with the enclosure to promote safe, controlled operation in industrial panels. As an official Square D/Schneider Electric accessory, EK1020-2 is specified for use with 100 A to 200 A E-Series devices and is intended to be used in NSB configurations where safe mechanical sequencing between the door and switch is required. Manufacturers and integrators commonly install this interlock kit in control panels, motor control centers, and distribution assemblies to help ensure proper interlock between the door and switch, aligning with standard safety practices for disconnect switches. Designed to match the geometry and mounting interfaces of the 100–200 A E-Series equipment, the EK1020-2 interlock kit serves as a dedicated safety accessory within Square D's safety-disconnect ecosystem.