Cutler-Hammer DH221NGK - 30A, 250V, Heavy-Duty, Switch

The Cutler-Hammer DH221NGK is a rugged, 30A, 250V heavy-duty switch built to deliver dependable on/off isolation in demanding environments. This is a purpose-built solution for industrial and commercial applications where space is at a premium and protection is non-negotiable.

Model DH221NGK, 30A, 250V, Heavy Duty. Its fusible switch design offers integrated overcurrent protection while providing quick, safe circuit isolation for maintenance and fault clearing. This combination makes it ideal for motor disconnects, panelboards, and branch circuits where compact form and easy serviceability matter most.

Key advantages

• Rugged construction for harsh environments: designed to withstand vibration, temperature swings, and frequent switching in industrial settings.
• Compact, maintainable design: simple access for testing, disassembly, and replacement without sacrificing performance.
• Integrated overcurrent protection: the fusible switch configuration helps protect downstream equipment and wiring by interrupting fault currents reliably.
• Reliable motor disconnect capability: a dedicated solution for safely isolating motors during maintenance or shutdowns.
• Panelboard and branch circuit compatibility: supports clean, controlled power distribution in commercial panels and feeder circuits.

Ideal use scenarios

Use the DH221NGK in manufacturing lines, HVAC control runs, belt conveyors, or any system requiring a robust disconnect that also provides overcurrent protection. It’s equally at home in new installations or as a durable replacement in existing panels where space and serviceability matter.

Specifications at a glance

• Model: DH221NGK
• Amperage: 30A
• Voltage: 250V
• Duty: Heavy

In short, the Cutler-Hammer DH221NGK is a purpose-built solution when you need secure isolation and dependable overcurrent protection in a compact, maintainable package. If you’re upgrading a panel, installing a new motor drive line, or replacing an aging disconnect, this switch offers a practical balance of protection, accessibility, and durability.