Cutler Hammer HKD3400F - 400A, Circuit Breaker

Introducing the Cutler Hammer HKD3400F— a 400A circuit breaker designed to protect the heart of your electrical system. Built for industrial, commercial, and OEM environments, this unit provides reliable overcurrent protection for panelboards, switchboards, control panels, and integrated equipment. When faults occur, it interrupts current to guard wiring, motors, and downstream devices, helping minimize damage and unplanned downtime.

Key features

• Current rating: 400A — robust protection for high-load feeders and motor circuits.
• Breaker type: Circuit Breaker — dependable performance with a clear, safe disconnection mechanism.
• Versatile installation: Suitable for panelboards, switchboards, control panels, and OEM equipment, providing flexibility across various electrical architectures.
• Application scope: Ideal for distribution panels and motor control centers where dependable overcurrent protection is critical.

Ideal for these environments

• Industrial facilities with heavy electrical demand and high-reliability requirements.
• Commercial sites that rely on stable power distribution and protected motor circuits.
• OEM equipment assemblies that require a proven protection device integrated into custom control systems.

Use cases in action

• Main feeder protection in distribution panels to prevent damage from overloads and short circuits.
• Protection backbone for motor control centers in manufacturing or process facilities.
• Critical protection element within OEM equipment enclosures to safeguard upstream and downstream loads.

Installation and maintenance tips

To get the most from the HKD3400F, ensure compatibility with your panelboard or switchboard configuration and mounting footprint. Always follow local electrical codes and the manufacturer’s installation guidelines. During commissioning, verify proper function within its protection role and perform routine inspections of connections to maintain reliable operation over time.

Choose the Cutler Hammer HKD3400F when you need steady, industrial-strength overcurrent protection that fits into panelboards, switchboards, control panels, and OEM assemblies—supporting safe operation and reduced downtime in demanding environments.