Eaton HLD3500Y - 500 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton HLD3500Y is a high-capacity, 3-pole bolt-on molded case circuit breaker designed to safeguard heavy residential, commercial, and light industrial electrical systems. Rated at 500 A and 600 V, this robust device provides dependable branch circuit overcurrent and short-circuit protection within panelboards and loadcenters, helping you prevent costly downtime and equipment damage.

Why the HLD3500Y stands out

• Secure bolt-on mounting: A rigid, vibration-resistant bus connection minimizes movement and arcing, delivering stable, long-term reliability in demanding installations.
• Thermal-magnetic trip unit: Combines thermal and magnetic sensing for precise, repeatable protection across a wide temperature range, reducing nuisance trips while reliably interrupting damaging faults.
• OEM-compatible design: Engineered to be compatible with matching OEM loadcenters and panelboards, ensuring smooth integration for new builds or panel upgrades.
• Three-pole configuration: Ideal for three-phase systems, enabling balanced protection for commercial equipment, light industrial machinery, and other multi-phase loads.
• High-current capability: 500 A rating handles large feeders and substantial load requirements without compromising protection accuracy or response time.
• Broad voltage support: 600 V rating ensures suitability for a wide range of distribution networks and equipment specifications.

Technical snapshot

• Manufacturer: Eaton
• Part Number: HLD3500Y
• 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

Ideal use cases and practical scenarios

Use the Eaton HLD3500Y to protect high-demand branch circuits in panelboards and loadcenters across several environments:

• Residential and light commercial installations where large-feeder protection is required
• Commercial electrical panels serving HVAC, motors, and other equipment with three-phase loads
• New panel builds or panelboard upgrades where OEM compatibility simplifies retrofit and maintenance

What this means for you

• Reliability you can count on: The combination of secure bolt-on mounting and a thermal-magnetic trip unit delivers consistent protection, even in environments with vibration or temperature fluctuations.
• Operational peace of mind: With precise current sensing and fast interruption on faults, you minimize downtime and protect downstream devices from damage.
• Flexible integration: Designed to fit OEM loadcenters and panelboards, making it a practical choice for new installations and panel refurbishments alike.

Whether you’re an electrical contractor, facilities manager, or maintenance technician, the Eaton HLD3500Y provides robust, high-capacity protection for demanding three-phase circuits. Its durable bolt-on design, reliable thermal-magnetic protection, and OEM compatibility translate to fewer service calls, faster installations, and safer electrical systems.