Square D 9422TEF10 - 100A, 600V, Fusible, Disconnect Switch

Meet the Square D 9422TEF10 — a robust 100A, 600V fusible disconnect switch engineered for demanding industrial and commercial environments. This compact, field-serviceable unit delivers reliable on/off isolation alongside integrated overcurrent protection, keeping power paths safe and downtime minimal.

Key advantages that set it apart

• Integrated fusible protection: Built-in fuses provide instantaneous overcurrent protection, enabling quick isolation of faulted circuits and safeguarding downstream equipment.
• 100A at 600V: Ready to handle motor loads and branch circuits up to 100 amps and up to 600 volts, making it a versatile solution for mid-size power distribution needs.
• Compact, maintainable design: A space-efficient form factor simplifies panelboard installation and keeps maintenance straightforward, with accessible fuse replacement to minimize downtime.
• Clear isolation for safety: Designed to deliver dependable on/off capability, offering a definitive disconnect path during servicing and emergencies.
• Versatile applications: Ideal for motor disconnects, panelboards, and branch circuit protection where a single, maintainable fusible switch is advantageous.

Ideal use scenarios

Use the 9422TEF10 in industrial production lines, HVAC and pumping systems, conveyors, and electrical rooms where space is at a premium but reliable power isolation is non-negotiable. It’s especially well-suited for installations that require both disconnection and fusible protection without adding multiple separate components.

What makes this solution better than running separate components

By combining disconnection and overcurrent protection in one compact unit, this Fusible Disconnect Switch reduces wiring complexity, saves panel space, and streamlines maintenance. It’s a practical choice for facilities aiming to simplify electrical layouts while preserving quick access to protective devices.

Key specifications

• Model: 9422TEF10
• Amperage: 100A
• Voltage: 600V
• Fusible: Yes
• Type: Disconnect switch with integrated fusing

Practical tips for deployment and care

• Confirm the downstream load current and voltage to ensure the 100A/600V rating aligns with your application.
• Use the appropriate fuse type and rating specified for your equipment and protect downstream circuits accordingly.
• Ensure proper enclosure and wiring practices to maintain safety, accessibility, and compliance with local electrical codes.
• Schedule periodic inspections to verify fuse integrity, terminal connections, and mechanical operation of the disconnect lever.