Schneider Electric EK300-1 SER D2 Electrical Interlock

Schneider Electric's EK300-1 electrical interlock kit is a 30 A, heavy-duty safety-interlock accessory designed for Series E safety switches (E1–E2). Because this catalog number uses the -1 suffix, it provides one normally open (NO) and one normally closed (NC) contact in a single interlock module, enabling precise sequencing with SP2T configurations on 30 A E-series switches. The EK300-1 interlock is intended to prevent unsafe operation by blocking closure of the main switch when a companion switch could energize the circuit or when access is opened, a standard safety requirement in industrial control panels. Typical applications include machine guarding, maintenance enclosures, and power-distribution panels that utilize paired Series E safety switches, where a compact interlock kit helps enforce safe, orderly switching and operator safety. This part is cataloged as EK300-1 (also listed as EK3001 in some distributors) and is part of Schneider Electric's family of electrical interlock kits for heavy-duty safety switches, offering a straightforward way to implement interlock logic without modifying the primary switch.