Square D H266 - 600A, 2-Pole, Fused Safety Switch

The Square D H266 is a rugged 600A, 2-pole fused safety switch engineered for industrial and commercial environments where safe electrical isolation is non-negotiable. Built to support proper lockout/tagout (LOTO) procedures, it ensures dependable disconnection under load and stands up to daily demanding use for long-term durability.

Why the Square D H266 stands out

• 600A amperage rating delivers strong, reliable fault isolation for heavy-duty circuits and feeders.
• 2-pole design provides complete circuit disconnection, enhancing safety during maintenance or service work.
• Fused protection integrates current interruption at the switch level, helping to prevent arc flash and equipment damage during faults.
• NEMA 1 enclosure suitable for indoor, dry environments, offering robust protection against dust and incidental debris.
• Specifically compatible with lockout/tagout procedures to meet safety requirements and minimize downtime during servicing.
• Engineered for durability in busy facilities, with solid construction designed to endure frequent operation and disconnections under load.

Designed for real-world use

Ideal for facilities that require a dependable disconnect solution with integrated fuse protection. The H266 supports routine maintenance and safety compliance without sacrificing performance, making it a solid choice for service entrances, branch circuit protection, and critical distribution points within manufacturing floors, warehouses, and large commercial spaces.

What you gain with this fused safety switch

• Enhanced personnel safety during maintenance through clear, reliable isolation.
• Improved equipment protection by interrupting current directly at the switch during faults.
• Operational reliability from a durable design that maintains performance in daily, heavy-use environments.
• Compliance-friendly isolation points that simplify lockout/tagout procedures for workers.

Specifications at a glance

• 600A
• 2-Pole
• NEMA 1
• Fused Safety Switch
• Square D
• H266