Eaton KD3175Y - 175 A, 600 V, 3-Pole Circuit Breaker | AmpState

Eaton KD3175Y is a 175A, 600V, 3-pole molded case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its compact molded case footprint maximizes panel space without compromising protective performance, making it a practical choice for spaces where efficiency matters as much as safety.

Key features that set the KD3175Y apart:

• Compact molded case design for efficient use of vertical and horizontal panel space, helping you fit more circuits in tight enclosures.
• Thermal-magnetic trip unit provides stable, repeatable protection by coordinating thermal overload protection with magnetic instantaneous response for high fault currents.
• 3-pole construction ensures simultaneous disconnection of all three conductors in a 3-phase system, enhancing safety and reducing the risk of neutral or ground faults spreading through a panel.
• OEM-compatible design for seamless integration with matching Eaton OEM loadcenters and panelboards, reducing retrofit complexity and maintaining system consistency.
• Versatile application range suitable for residential, commercial, and light industrial environments where reliable protection is essential.

Technical at a glance

• Eaton
• KD3175Y
• Thermal-magnetic molded case circuit breaker
• 175 A
• 600 V
• 3
• Branch circuit overcurrent and short-circuit protection

Who benefits most from the KD3175Y? installers and facilities managers seeking a reliable, space-efficient protection device for 3-phase panels, electrical rooms, or service entrances. It’s especially valuable when upgrading older panels that require modern thermal-magnetic protection, or when stocking a spare that aligns with Eaton’s panelboard ecosystem to ensure predictable compatibility and performance.

Use cases and scenarios

• Primary protection in new or retrofit panelboards and loadcenters serving commercial spaces with 3-phase equipment.
• Motor control applications in light industrial environments where consistent trip characteristics matter for startup surges.
• Replacement for compatible Eaton breakers in OEM panels, preserving system coordination and warranty considerations.
• Emergency or critical-load circuits that demand dependable, repeatable protection against overloads and short circuits.

Practical tips for best results:

• Verify panelboard compatibility with 3-pole 175 A units from Eaton’s OEM line to ensure seamless mounting and electrical coordination.
• Follow manufacturer torque specifications on termination to maintain secure connections and optimal trip performance over time.
• Keep spares of commonly used ratings in your service van or warehouse to reduce downtime during panel maintenance or upgrades.

When you’re sourcing dependable protection for 3-phase panels, the Eaton KD3175Y delivers precise, reliable performance you can trust across a range of environments. Explore this option at AmpState for a compatible, OEM-aligned solution that keeps your electrical infrastructure safe and compliant.