Castell SF13 Key Switch

Castell SF13 Key Switch is a keyed electrical switch from Castell Safety International. Built to support safety-focused control schemes, the SF13 model provides a physical key mechanism to regulate access to powered equipment and to enable or restrict operation of a connected circuit. Cast in Castell’s durable, industrial-grade style, the SF13 is designed to withstand demanding environments and is typically employed on control panels and machinery where lockout/tagout practices rely on a keyed switch to ensure only authorized personnel can operate the equipment. By integrating a key into the control path, this switch helps prevent unintended starts during maintenance and supports safer commissioning, servicing, and reset procedures. The SF13 designation identifies a specific model within Castell’s SF line, reflecting the company’s continued emphasis on reliability, safety compliance, and straightforward integration with larger interlock and control systems.