Siemens SN-421 - 30A, 240V, Disconnect Switch

Introducing the Siemens SN-421, a 30A, 240V Disconnect Switch designed for reliable on/off isolation and overcurrent protection in demanding industrial and commercial environments. This compact, maintainable fusible switch delivers dependable performance when protecting motors, panelboards, and branch circuits, ensuring safe, quick disconnection when service or emergency action is needed.

• Space-efficient design fits tightly in restricted electrical enclosures and crowded control panels without compromising performance.
• Maintenability by design simplifies routine inspection, quick component checks, and trouble-free servicing to minimize downtime.
• Robust protection provides clear isolation and reliable current interruption for motor loads and branch circuits in busy facilities.
• Specified for industrial reliability with a 30A, 240V rating that delivers consistent switching behavior across a range of operating conditions.

Ideal use cases include motor disconnects on conveyors, pumps, and fans; panelboard isolation within electrical rooms; and branch circuit protection for critical equipment in manufacturing, warehousing, and large commercial installations. The SN-421 is purpose-built to be the go-to choice when you need a compact, easy-to-maintain solution that won’t compromise safety or performance.

• Model: SN-421
• Amperage: 30A
• Voltage: 240V

Choosing the Siemens SN-421 means opting for a proven, reliable disconnect switch that keeps systems safe and accessible for maintenance. Its practical footprint and straightforward maintenance workflow help shorten downtime and keep critical equipment protected, day after day.