Schneider Electric EK300-2 Electrical Interlock Switch

Schneider Electric's EK300-2 Electrical Interlock Switch is a heavy‑duty safety accessory designed to accompany Square D safety switches and disconnects in industrial panels. Rated for 30 amperes, the EK300-2 provides dual interlock circuits (two electrical interlock) as part of the Series E1–E2 family, enabling a secure, controlled operation where access to powered equipment must be restricted. The interlock uses a key‑interlock system that prevents unauthorized operation, helping ensure that a guard or door is secured before the main switch can be operated. Commonly installed as an interlock kit for safety switch assemblies, the EK300-2 coordinates with the associated disconnect to lock out both line and load sides when the enclosure is opened. Catalog listings describe EK300-2 as a Square D interlock accessory in the 30 A, heavy‑duty safety‑switch family, with model references including EK3002 and EK-300-2 across regional catalogs. This interlock is intended for industrial control applications such as machinery safety enclosures and panel‑mounted safety switches, where interlock functionality prevents energization during maintenance.