Eaton KDB3250W - 250 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton KDB3250W is a 250 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built to handle demanding residential, commercial, and light industrial environments, this unit combines rugged mounting with precise protection to keep electrical systems running smoothly.

Key advantages that matter on the job

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, minimizing loosened connections and arcing in setups with heavy feeders or exposed equipment.
• Thermal-magnetic trip unit delivers stable, repeatable protection by coordinating overload (thermal) with short-circuit (magnetic) responses, reducing nuisance trips while guarding valuable equipment.
• Three-pole design supports 3-phase circuits with balanced protection, ideal for commercial panels and small industrial installations.
• 250 A / 600 V ratings cover typical branch circuits and motor-start applications while providing ample headroom for growing systems.
• OEM-compatible is designed to work with matching Eaton OEM load centers and panelboards for smooth replacement and seamless integration.

What this means for you

• Reliability in harsh environments because the bolt-on design and solid bus connection resist vibration-induced issues, helping maintain continuity in busy electrical rooms.
• Predictable protection thanks to a well-tuned thermal-magnetic trip that responds quickly to short circuits while avoiding unnecessary trips during normal operation.
• Flexible deployment across multiple sectors—home renovation projects, retail power centers, office complexes, and light manufacturing lines—where robust overcurrent protection is essential.
• Easy replacement and maintenance with compatibility in Eaton’s ecosystem, simplifying stocking and service procedures for electricians and technicians.

Ideal use scenarios

• Upgrading or replacing aging breakers in panelboards and load centers where a dependable 3-pole, 250 A solution is required.
• Protecting large branch circuits feeding commercial equipment, HVAC controls, or light industrial machinery.
• Installing in new constructions that rely on balanced three-phase power distribution with solid, vibration-resistant mounting.

Technical specifications at a glance

• Manufacturer: Eaton
• Part number: KDB3250W
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 250 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection