Eaton KD3350X - 350 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton KD3350X—a purpose-built 350 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to safeguard power distribution in panelboards and load centers. From AmpState, this unit is engineered for dependable branch circuit overcurrent and short-circuit protection, delivering reliable performance where it matters most.

• Secure bolt-on mounting: a rigid, vibration-resistant bus connection that stays tight through equipment vibration and routine maintenance, reducing the risk of loose connections and intermittent trips.
• Thermal-magnetic trip unit: combines precise thermal overload sensing with immediate magnetic trip response for short circuits, delivering stable, repeatable protection across a range of operating temperatures.
• OEM-compatible design: engineered to pair with matching Eaton OEM load centers and panelboards for straightforward installation, clean labeling, and reliable coordination with existing protection schemes.
• Versatile protection for multiple environments: suitable for residential subpanels, commercial distribution, and light industrial applications where robust, long‑lasting circuit protection is essential.

What problems does it solve?

The KD3350X addresses two core needs in electrical distribution: preventing damage from overcurrent and rapidly stopping fault conditions that could lead to wiring damage or fire. Its bolt-on construction minimizes connection issues in environments with vibration or movement, while the thermal-magnetic trip unit delivers predictable performance as loads fluctuate—helping you avoid nuisance trips and maintain uptime.

Specifications at a glance

• Amperage rating: 350 A
• Voltage rating: 600 V
• Poles: 3
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the KD3350X?

• Electrical professionals designing or upgrading panelboards and load centers in homes, offices, retail spaces, or light industrial facilities.
• Technicians seeking a robust, OEM-compatible breaker with reliable mounting and predictable trip characteristics.
• Projects where vibration considerations require a secure, maintenance-friendly connection without sacrificing protection accuracy.

Practical tips for install and use

• Confirm panelboard compatibility with Eaton KD3350X and, when available, align with OEM labeling and coordination constraints.
• Follow standard bolt-on torque practices to ensure a solid bus connection and minimize heat buildup at the connection point.
• During commissioning, verify trip functionality in a controlled test environment and document the protection settings for future maintenance.
• Use in environments typical for residential, commercial, and light industrial distribution where durable, long-term protection is needed.

The Eaton KD3350X stands out with its combination of secure mounting, precise thermal-magnetic protection, and OEM-ready compatibility—delivering dependable, long-lasting branch circuit protection for your most critical loads.