The IEC-EL249S is a locking device designed to secure switches and outlets used in IEC rated equipment. This locking device is made of die-cast zinc with a high impact strength, and it is designed to fit 16 to 18 AWG wire. The IEC-EL249S allows for a secure locking mechanism when controlling the on off function of an IEC rated device. The IEC-EL249S is an IEC lock that has a unique color coded key for added security and easy identification.