Zinsco QSFT633U60 Fusible Safety Disconnect Switch

Description:

The Zinsco QSFT633 U 60 is a fusible safety disconnect switch used in electrical distribution systems to safely isolate and protect circuits. It is commonly installed in commercial and industrial panels for motor disconnect and load isolation. Designed for 3-phase applications, it provides reliable switching and high fault protection for equipment and power systems. Maintenance teams and electricians use this switch for system shutdown, servicing, and replacement of legacy disconnect hardware.

Applications:

The Zinsco QSFT633 is commonly used in motor control systems, industrial machinery, commercial electrical panels, and power distribution systems where safe isolation and circuit protection are required. It is typically installed in environments where dependable disconnect functionality is critical for maintenance and safety compliance.

Technical Specifications:

• Manufacturer Part Number (MPN): QSFT633
• Product Type: Fusible Safety Disconnect Switch
• Series: QSFT / QSF
• Amperage: 60A
• Voltage Rating: 250V
• Phase: 3-Phase
• Poles: 3
• Interrupt Rating: 200kA
• Switch Type: Fusible
• Mounting Type: Panel / surface mount
• Application Environment: Industrial and commercial electrical systems

Common Replacements:

• Square D H361
• Eaton DH363
• Siemens GF326N