Eaton KD3100C - 100 A, 600 V, 3-Pole Circuit Breaker | AmpState

Engineered by Eaton, the KD3100C 100A 3-Pole molded case circuit breaker delivers dependable overcurrent and short-circuit protection for panelboards and loadcenters. Its compact molded case design maximizes panel space without sacrificing safety or performance, making it a practical choice for efficient, reliable electrical protection.

Key advantages that set the KD3100C apart

• Compact molded case design minimizes footprint inside panels, freeing space for wiring and additional devices while maintaining robust protection.
• Thermal-magnetic trip unit provides stable, repeatable protection across varying temperatures and load conditions, helping prevent nuisance trips and ensuring consistent safety margins.
• 3-Pole configuration ideal for 3-phase systems, enabling clean, balanced protection for multi‑phase motor and equipment circuits.
• OEM-compatible designed to pair with matching Eaton OEM loadcenters and panelboards for a seamless fit and reliable performance.
• Versatile applications suitable for residential, commercial, and light industrial environments where dependable branch circuit protection is essential.

Technical specifications at a glance

• Manufacturer: Eaton
• Part Number: KD3100C
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Use the KD3100C in panelboards and loadcenters that serve three-phase equipment or multi-wire branch circuits. It’s well-suited for:

• New construction and remodel projects in light commercial spaces where space-efficient protection is a priority
• Residential developments with multi‑unit wiring requiring reliable 3‑pole protection
• Electrical enclosures in small industrial settings guarding motors and heat-producing equipment

Why choose this breaker over alternatives

Beyond basic specs, the KD3100C emphasizes compatibility and dependable behavior in real-world installations. The combination of a compact form factor and a thermal-magnetic trip unit translates to fewer panel fit issues, predictable tripping performance, and straightforward matching with existing Eaton loadcenters. For installers and facility managers, this means faster panel upgrades, easier maintenance, and consistent protection across three-phase circuits.

Practical tips for installation and use

• Verify that the panelboard or loadcenter is rated for 600 V and 100 A to ensure full compatibility and safe operation.
• When replacing an older or different-brand breaker, confirm the new KD3100C’s trip characteristics align with your system’s protection requirements.
• Follow all applicable electrical codes and safety practices during installation, including proper torque on the mounting hardware and secure wiring terminations.
• Store spares in a clean, dry location to preserve the integrity of the thermal-magnetic trip mechanism for long‑term reliability.

The Eaton KD3100C stands out for dependable protection, panel-friendly design, and practical fit with OEM loadcenters. For engineers, electricians, and facilities teams seeking solid, repeatable branch circuit protection in 3-phase systems, this 100 A, 600 V, 3-pole molded case breaker is a reliable choice.