Eaton LDB3400 - 600 V, 3-Pole Circuit Breaker | AmpState

The Eaton LDB3400 is a 600V, 3-pole molded case circuit breaker built to protect panelboards and loadcenters from overcurrent and short-circuit events. With a thermal-magnetic trip unit, this device combines thermal overload protection with instantaneous magnetic trip action, delivering stable and repeatable protection across a range of operating conditions.

Compact design that maximizes panel space

Designed for efficient use of space inside electrical panels, the LDB3400’s compact molded case form factor helps you fit protection where it’s needed without sacrificing performance. Its robust construction supports reliable operation in demanding environments—from residential service entrances to commercial panels and light industrial installations.

Key features that matter in real-world installations

• 3-pole configuration for three-phase protection where required, ensuring synchronized disconnection across all conductors.
• 600V rating suitable for a wide range of commercial and industrial electrical systems.
• Thermal-magnetic trip unit provides coordinated thermal overload protection with fast magnetic tripping during short circuits, helping minimize damage and downtime.
• Panel-compatible design matches OEM loadcenters and panelboards, supporting seamless integration into existing electrical installations.
• Residential, commercial, and light industrial use—a versatile solution for diverse protection needs across building types.

Technical snapshot

• Manufacturer: Eaton
• Part Number: LDB3400
• Type: Thermal-magnetic molded case circuit breaker
• Voltage Rating: 600V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Why this Eaton LDB3400 is a smart choice

• Precise protection that helps prevent nuisance trips while still delivering fast response to dangerous fault conditions.
• Reliable compatibility with matching OEM loadcenters and panelboards, reducing installation hassles and ensuring proper fitment.
• A single, versatile solution for multiple settings—home electrical panels, commercial switchgear closets, and light industrial load centers.

Practical guidance for use

When selecting a breaker, consider the three-phase requirements of your system and ensure the panelboard is rated for 600V operations. For maintenance, follow standard NEC guidelines and the manufacturer’s installation instructions to verify compatibility with your existing loadcenter and ensure proper torque on terminal connections.

Available from AmpState

Acquire the Eaton LDB3400 600V, 3-pole molded case circuit breaker through AmpState for genuine Eaton parts, trusted performance, and support from electrical distribution experts.