Eaton LD3500Y - 500 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton LD3500Y is a high-capacity, three-pole bolt-on molded case circuit breaker designed to safeguard large branch circuits with precision. With a 500 A rating at 600 V, it delivers dependable overcurrent and short-circuit protection for panelboards and load centers, keeping critical electrical systems secure and running smoothly.

• Secure bolt-on mounting: A rigid, vibration-resistant bus connection minimizes movement and arcing risk, even in demanding installations where equipment experiences regular vibrations or shock.
• Thermal-magnetic trip unit: Combines thermal and magnetic sensing to provide stable, repeatable protection across a wide range of loads and fault conditions, reducing nuisance trips and speeding fault isolation.
• 3-pole design for three-phase systems: Optimized for balanced three-phase circuits, ensuring consistent protection across all phases.
• 500 A at 600 V: Suitable for heavy-load applications in residential, commercial, and light industrial settings, delivering robust performance where large feeders or distribution circuits are involved.
• OEM-loadcenter compatibility: Engineered to integrate with matching OEM load centers and panelboards, enabling straightforward, plug-in compatibility and streamlined installations.
• Versatile applications: Ideal for protecting branch circuits in service panels, main distribution panels, and other enclosure setups where reliable overcurrent protection is critical.

Why choose the LD3500Y? This unit’s bolt-on construction couples mechanical security with reliable electrical protection, making it a strong choice for installations that demand both durability and predictable trip behavior. The combination of a 500 A rating, 600 V capability, and a tri-pole configuration makes it well-suited for sizable, multi-phase circuits in environments ranging from homes with advanced electrical loads to small-to-mid-size commercial and industrial applications.

Use cases and scenarios

• Feeder protection for large panelboards in light commercial spaces
• Three-phase distribution in compact industrial enclosures
• Main or sub-feed protection for equipment racks and service entrances requiring solid, dependable trip certainty

Specifications at a glance

• Manufacturer: Eaton
• Part Number: LD3500Y
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 500 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Installation note: Refer to the manufacturer’s guidelines for mounting torque and enclosure compatibility to ensure optimal performance. When paired with appropriate panelboards, the LD3500Y delivers a reliable, long-lasting safeguard for high-demand electrical systems while maintaining straightforward serviceability for maintenance or upgrades.