Eaton H421K - 30A, 240V, 4-Pole, Safety Switch

The Eaton H421K Safety Switch is engineered for the exacting demands of industrial and commercial electrical systems. With a 30A rating at 240V and a 4-Pole configuration, this disconnect provides comprehensive, all-conductor isolation—perfect for safe maintenance, service work, and reliable equipment shutdowns. Built to endure demanding environments, the H421K prioritizes dependable disconnection under load and long-term durability so your operations stay productive and compliant.

What makes the Eaton H421K special

• Complete pole isolation: The 4-pole design ensures all current-carrying conductors can be disconnected, reducing arc-flash risk and simplifying lockout/tagout procedures.
• Optimized for lockout/tagout: Designed to support safe, verifiable lock and tag procedures, helping your maintenance teams work confidently and in accordance with safety standards.
• Reliable under load: Engineered to deliver dependable disconnection even when equipment is energized, so unexpected restart hazards are minimized during maintenance.
• Durable, purpose-built construction: Built to withstand daily industrial use, delivering steady performance over the system’s lifecycle in harsh environments.
• Clear electrical isolation at 240V: Ideal for medium-voltage and high-demand circuits common in motor, pump, and process lines, providing a robust disconnect point when needed.

Ideal applications and use cases

• Maintenance and repair on production lines, conveyors, and motors where a guaranteed isolation point is essential
• Service disconnects in commercial and industrial facilities to enable safe de-energization during upgrades or troubleshooting
• Lockout/tagout procedures for machine servicing, ensuring workers can perform tasks without unexpected re-energization
• Standby or emergency shutoff points in equipment rooms where a reliable, immediate disconnect is required

How it benefits your operation

Choosing the Eaton H421K means prioritizing safety without sacrificing uptime. Its 4-pole, 240V design removes all conductive paths during servicing, reducing risk while keeping lines clearly identifiable for maintenance teams. The 30A rating aligns with common industrial loads, providing a balanced solution for safe isolation without unnecessary circuit interruption. This safety switch is a practical, front-line component for any facility aiming to improve compliance, worker safety, and maintenance efficiency.

Specifications at a glance

• Amperage rating: 30A
• Voltage rating: 240V
• Poles: 4-Pole
• Product type: Safety Switch
• Brand: Eaton
• Model: H421K

Equip your facility with the Eaton H421K Safety Switch to achieve reliable electrical isolation, support lockout/tagout procedures, and maintain safe, efficient operation across demanding industrial environments.