Siemens JN423 Disconnect Switch, 100A, 3-Pole, 240V

Siemens JN423 Disconnect Switch delivers dependable electrical isolation for industrial service, maintenance, and replacement projects. With a robust 100 A rating, a 3-pole configuration, and 240 V operation, it provides a reliable, clean disconnect point for three-phase systems.

Why the JN423 stands out

• Complete triplex isolation: the 3-pole design ensures all three phases are safely disconnected during maintenance, reducing risk and allowing safer work environments.
• High-visibility suitability for industrial settings: built to endure routine service and replacement cycles in demanding manufacturing or processing facilities.
• Clear electrical specification: 100 A current rating paired with 240 V operation makes it well-suited for motor feeds, control circuits, and power distribution in typical plant layouts.
• Part number clarity for compatibility: use JN423 to confirm fit with your application and mounting requirements, ensuring a precise match for your panel or enclosure.
• Designed for straightforward integration: intended for industrial electrical service and maintenance applications where a reliable, accessible isolation point is essential.

Ideal use cases

• Service disconnects in control panels and machine rooms, enabling safe power shutdowns for routine maintenance or repairs.
• Replacement of aging or failed disconnect switches in motor circuits, drives, or power feeds during equipment upgrades.
• Emergency isolation in critical processing lines or manufacturing cells, providing rapid and reliable power disconnection when needed.

How to verify compatibility

To ensure a perfect fit, confirm that your application requires a 3-pole, 100 A, 240 V disconnect switch and that the JN423 part number aligns with your equipment’s mounting and wiring configuration. If you need assistance with part-number matching or compatibility checks, send us a message—we’re ready to help evaluate your setup and recommend the right fit.

Note: Verify fit by part number and application requirements. This Siemens disconnect switch is purpose-built for industrial service, maintenance, and replacement projects, delivering reliable isolation when it matters most.