Square D | QSFT1053R | Disconnect Switch | 100A | 3-Pole | 600V

The Square D QSFT1053R Disconnect Switch is a purpose-built safety switch designed to provide clean, reliable isolation in electrical distribution, ideal for maintenance, retrofit, and replacement scenarios. Built on Square D’s durable engineering, this 3-pole device ensures all three phases can be safely opened for service work or when reconfiguring a panel.

Key specifications at a glance:

• Amperage: 100 A
• Poles: 3-Pole
• Voltage: 600 V
• Part number: QSFT1053R — your best reference for compatibility

Why this 3-pole disconnect matters

In multi-phase electrical systems, isolating all active lines is essential for safe work. The 3-pole design of the QSFT1053R ensures consistent interruption of all three phases, reducing exposure during maintenance and eliminating partial energization risk. This makes it a strong fit for retrofit projects where the existing equipment requires a matching 100 A, 600 V rating.

Where and how you’ll use it

• Maintenance: isolate equipment quickly to perform routine checks without bringing down the entire facility.
• Retrofit: upgrade legacy panels to current Square D compatibility with a part number that clearly references fit.
• Replacement: swap out a worn switch with a direct, spec-matched component to minimize downtime.

Practical guidance for a smooth fit

Before ordering, confirm fit and ratings match your system. The QSFT1053R part number is the most reliable reference when verifying compatibility with your switchgear or enclosure. If your panel or control cabinet specifies a 100 A, 3-pole, 600 V disconnect, this model aligns with those requirements and can help restore safe, code-compliant operation.