The Schneider Electric Square D H366R is a heavy-duty fusible safety switch engineered for robust performance in demanding commercial, institutional, and industrial environments. This switch is designed to exceed NEMA KS-1 and UL98 standards, offering enhanced mechanical endurance and reliable operation for critical power control applications.

Technical details

• Series: Square D Heavy Duty
• Type: Fusible Safety Switch
• Configuration: 3-Phase
• Voltage Rating: 600V AC
• Amperage Rating: 400A
• Enclosure Type: NEMA 3R (Outdoor Rated)
• Interrupting Rating: 200kA (with appropriate fuses)
• Construction: Rugged, built for demanding applications

Applications & compatibility

This H366R safety switch is commonly deployed in power distribution systems for manufacturing plants, processing facilities, and large commercial buildings. It provides a reliable means of disconnecting power to machinery and equipment, ensuring safety during maintenance and operational procedures. Its NEMA 3R rating makes it suitable for outdoor installations where protection from rain and sleet is required.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D H366R or contact our technical team for cross-reference assistance with compatible Square D safety switch components.