Schneider Electric SX-6 Electrical Interlock Assembly

Schneider Electric's SX-6 Electrical Interlock Assembly is a field-installable interlock kit designed to mate with Square D safety switches to break the control circuit before the main switch blades break, ensuring safe, sequenced operation. The interlock provides two normally open (NO) and two normally closed (NC) contacts to support proper control and power circuit sequencing, and is specified for general-duty 60 A (F60A) or heavy-duty series F5/F6 switches. The kit is UL listed and CSA certified, and comes with mounting instructions for field installation, making it suitable for industrial disconnects and machinery panels where interlocked operation is essential. In practice, this assembly enables interlock functionality without replacing the entire switch, helping maintain code-compliant safety practices in demanding electrical environments.