Cutler-Hammer HK3100 Circuit Breaker, 100A, 3-Pole, 600V

Cutler-Hammer HK3100 Circuit Breaker — a rugged, industrial-grade protection device designed for demanding electrical service, maintenance, and replacement projects. With a 100 A rating, a 3-pole configuration, and a 600 V maximum, the HK3100 is built to handle the rigors of 3-phase systems in modern industrial environments.

Key specifications to confirm compatibility at a glance:

• Amperage: 100 A
• Poles: 3
• Voltage: 600 V
• Part Number: HK3100

What makes the HK3100 stand out

• Three-pole configuration enables simultaneous disconnection of all hot conductors in 3-phase systems, improving shutdown reliability and crew safety during maintenance or fault events.
• 100 A protection provides solid overcurrent protection for feeders and critical industrial circuits, helping prevent equipment damage and downtime.
• 600 V rating accommodates a wide range of industrial applications, from light-medium loads to higher-voltage industrial equipment.
• Durable, purpose-built construction for the daily rigors of an industrial floor, ensuring dependable performance in challenging environments.
• Part-number-driven compatibility — use HK3100 to verify fit with your panel, enclosure, and application requirements.

Compatibility is determined by the exact part number and how it aligns with your system needs. If you need help matching this HK3100 to your equipment or confirming suitability for your application, send us a message and we’ll assist with verification and a recommended approach.

Ideal use cases

• Replacement in industrial service panels and control boards where three-phase protection is required.
• Upgrading legacy systems to a reliable 3-pole circuit breaker to safeguard 3-phase feeders.
• Maintenance shutdowns and emergency service scenarios where a robust, fast-disconnect device is essential.