Siemens 240VAC - 400A, Fused Safety Switch

Engineered for demanding industrial and commercial environments, the Siemens 240VAC - 400A Fused Safety Switch delivers safe, reliable electrical isolation with a built-in fused disconnect. Designed to perform under load, it ensures dependable disconnection to protect personnel during maintenance and to safeguard equipment during fault conditions. This isn’t just a switch—it’s a deliberate, safety-first solution that supports essential lockout/tagout procedures and long-term durability in tough operating conditions.

Key specifications

• Amperage Rating: 400A
• Voltage: 240 VAC
• Product Type: Fused Safety Switch
• Brand: Siemens
• Model: 240VAC

What makes this fused safety switch unique

• Safe electrical isolation: Provides a clear, reliable break in the circuit to protect workers during maintenance, service, or setup.
• Lockout/Tagout (LOTO) ready: Integrates smoothly with standard LOTO procedures, making compliance straightforward and practical on busy work floors.
• Under-load disconnection: Delivers dependable circuit opening even when equipment is energized, reducing the risk of arcing and injury.
• Industrial-grade durability: Built to withstand the demands of continuous operation in commercial and industrial settings, delivering lasting performance over years of use.
• High-current capability: With a 400A rating, it accommodates demanding applications such as motors, conveyors, and heavy-duty process equipment.
• 250/240V applicability: Optimized for 240 VAC systems common in building services and industrial installations, helping simplify electrical design and safety planning.

Ideal use cases

• Motor control and equipment shutdown on production lines, processing equipment, and packaging machinery.
• Maintenance and service shutoffs where quick, reliable isolation is critical for worker safety.
• Systems requiring robust, fuse-based protection to interrupt fault currents and prevent equipment damage.
• Facilities that prioritize strict lockout/tagout practices to ensure compliant and safe maintenance workflows.

Practical considerations and tips

• Plan installations in accessible locations to streamline maintenance and LO/TO procedures without compromising security or safety.
• Pair with appropriate fusing elements to match the protected load and ensure consistent performance under fault conditions.
• Schedule periodic inspections of the switch assembly to verify mechanical integrity and ensure reliable disconnection when needed.
• Use in conjunction with standard safety practices and site-approved lockout/tagout protocols to maximize personnel protection and minimize downtime.