Siemens 3KA5530-1AE01 - 250A, 690V, 3-Pole, Disconnect Switch

The Siemens 3KA5530-1AE01 is a purpose-built 3-pole disconnect switch engineered for robust electrical isolation in demanding industrial and commercial settings. With a 250A current rating and a 690V maximum, it provides decisive, lockout-ready disconnection to support safe maintenance and dependable operation across critical systems.

Designed for longevity and reliable performance, this disconnect switch is built to sustain repeated load disconnections without compromise. Its construction emphasizes durability in harsh environments, delivering consistent isolation when it matters most and enabling clean, verifiable lockout/tagout (LOTO) procedures as part of everyday safety practice.

Key advantages that matter on the floor

• Three-pole configuration ensures synchronized isolation across all phases in three-phase networks, simplifying troubleshooting and safer service work.
• 250A amperage rating handles medium-to-large loads typical of industrial lines, machine rooms, and power distribution cabinets.
• 690V voltage rating supports diverse industrial distributions, offering a versatile solution for complex electrical layouts.
• Designed with LOTO compatibility in mind, making it straightforward to secure a safe, maintenance-ready state.
• Siemens engineering backing provides consistency, reliability, and access to service and spares within a global network.

Practical applications and use cases

• Isolate high-demand equipment such as large motors, transformers, and critical feeders in production environments.
• Provide clear, local disconnect points within electrical panels and distribution rooms for routine servicing and upgrades.
• Support strict safety programs in facilities that require formal lockout/tagout procedures during maintenance windows.

What you can expect in operation

• Enhanced maintenance safety thanks to reliable, clearly defined shutdown points that are easy to lock and tag.
• Improved uptime through dependable disconnection under load, reducing risk during planned outages.
• Long-term durability designed to withstand repetitive use in tough industrial environments.

Specifications at a glance

• Amperage Rating: 250A
• Voltage Rating: 690V
• Poles: 3-Pole
• Product Type: Disconnect Switch
• Brand: Siemens
• Model: 3KA5530-1AE01