Siemens 71-240-055-511 - 1200A, Disconnect Switch

Engineered by Siemens, the 71-240-055-511 is a high-capacity disconnect switch designed for industrial and commercial environments where safe, reliable electrical isolation is essential. This 1200A disconnect switch delivers dependable disconnection under load while fully supporting proper lockout/tagout (LOTO) procedures to protect maintenance teams and downtime-critical operations.

Why the Siemens 71-240-055-511 stands out

• High-current capability — with a amperage rating of 1200A, it handles demanding motor drives, large feeders, and heavy distribution circuits with confidence.
• Lockout/tagout compatibility — purpose-built to facilitate safe maintenance practices by providing clear, enforceable isolation points for LOTO procedures.
• dependable under load — engineered to achieve secure disconnection even when circuits are energized, reducing arcing risk and enhancing overall safety.
• Durable, long-term design — built to endure frequent operation in harsh industrial environments, offering lasting performance and reduced maintenance cycles.

This disconnect switch is ideal for facilities that require robust electrical safety and straightforward integration into existing switchgear. It’s well-suited for powering and isolating large equipment such as conveyors, pumps, HVAC systems, manufacturing lines, and data-center infrastructure, where a clearly defined isolation point is critical for safe servicing and rapid recovery after maintenance.

Key specifications

• Amperage Rating: 1200A
• Product Type: Disconnect Switch
• Brand: Siemens
• Model: 71-240-055-511

Practical guidance for installation and use: position the switch in a protected enclosure or control cabinet where easy access is available for operators and technicians. Pair with appropriate lockout devices and tagging hardware to meet safety protocols, and schedule routine inspections to verify contact integrity and reliable opening/closing performance. For facilities upgrading electrical safety and efficiency, this Siemens disconnect switch offers a trusted, high-capacity solution that aligns with industry best practices and safety standards.