Eaton Cutler Hammer LDB3350 350A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600V

The Eaton Cutler-Hammer LDB3350 molded case circuit breaker is designed to deliver reliable circuit protection in demanding industrial and commercial power distribution systems. Built on the LDB frame platform, this breaker incorporates a thermal magnetic non-interchangeable trip unit that safeguards electrical circuits from overload and short-circuit conditions. Rated at 350 amperes with a 3-pole configuration, the breaker supports AC applications up to 600VAC and DC systems up to 250VDC. Its design is suitable for reverse feed applications, offering flexibility in installation and system layout. With a robust bolt-on mounting configuration and high interrupting capacity, the LDB3350 ensures dependable protection for panelboards, switchboards, and other heavy-duty electrical systems.

Product Specification

• Brand: Eaton / Cutler-Hammer
• Model: LDB3350
• Amperage: 350 Ampere
• Number of Poles: 3 Pole
• Breaker Type: Molded Case Circuit Breaker (MCCB)
• Mount Type: Bolt-On
• Rated Voltage: Up to 600V AC / 250V DC
• Frame Type: LDB Frame
• Warranty: 1 Year

Technical Specification

• Trip Unit Type: Thermal Magnetic Non-Interchangeable Trip Unit
• Trip Setting Range: Adjustable 5–10 times continuous ampere rating
• Connection Type: Bolt-On
• Terminal Type: Aluminum line and load end terminals standard
• Temperature Rating: 350A at 40°C
• Reverse Feed Capability: Suitable for reverse feed installation
• Protection Type: Overload and Short Circuit Protection
• Application: Industrial and commercial electrical distribution systems

Voltage and Ratings

• Maximum Operating Voltage: 600 VAC / 250 VDC
• Rated Current: 350 Ampere
• Interrupting Ratings:
• • 65 kA @ 240 VAC
  • 35 kA @ 480 VAC
  • 25 kA @ 600 VAC
  • 22 kA @ 250 VDC
• Frequency Rating: 50/60 Hz for AC systems

Product Data

• Manufacturer: Eaton / Cutler Hammer
• Product Category: Molded Case Circuit Breaker
• Frame Series: LDB Frame
• Pole Configuration: 3 Pole
• Mounting Method: Bolt-On
• Terminal Type: Aluminum line and load end terminals standard
• Protection Mechanism: Thermal Magnetic
• Typical Applications: Industrial switchgear, commercial distribution panels, and heavy-duty electrical installations

Important Note

The product image shown may represent a base model and is intended for identification purposes only. Accessories purchased with your breaker can be installed according to your required configuration at no additional cost when instructions are provided during checkout. Installation should be performed by a qualified electrician, and system compatibility with voltage ratings and applicable electrical standards should be verified prior to operation.

Returns are easy

You may return items within 30 days of delivery for a refund.

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