LB3350 - 350Amp Circuit Breaker
- 350 Amp
- 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
LB3350 - 350Amp Circuit Breaker Description
LB3350 - 350Amp Circuit Breaker
The LB3350 is a 350-amp, 3-pole Type LB circuit breaker with a thermal-magnetic design and an interchangeable trip unit. If you're sourcing this breaker for existing equipment, the electrical ratings are only part of the match. For compatible installations, particularly older or legacy equipment, matching these details helps ensure you're getting the right form, fit, and function rather than simply another 350A breaker. When correctly selected, installed, and used within its specified ratings, the LB3350 is built to last in its intended application.
Key Features and Benefits
- 350A rating with a 3-pole configuration
- Type LB circuit breaker
- Thermal-magnetic operation
- Interchangeable trip unit
- 40°C rated
- Load-side terminals included
- Defined dimensions make it easier to check physical compatibility
- Suitable for form, fit, and functional replacement where the complete specifications match the existing equipment
Technical Specifications
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Part Number: LB3350
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Type: LB
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Amperage: 350A
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Poles: 3
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Trip Type: Thermal magnetic
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Trip Unit: Interchangeable
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AIC Rating: 22kA @ 600VAC
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AIC Rating: 30kA @ 480VAC
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AIC Rating: 42kA @ 240VAC
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Temperature Rating: 40°C
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Terminals: Load-side terminals included
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Height: 10.13 in.
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Width: 5.50 in.
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Depth: 3.94 in.
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Dimensions: 5.50"W x 10.13"L x 3.94"D
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Approx. Ship Weight: 16.00 lbs.
Material Compliance and Certifications
No specific UL, CSA, IEC, RoHS, REACH, or other certification or material-compliance information was supplied for the LB3350, so assume none.
Where It Works Best
The LB3350 makes the most sense in equipment calling for a 350A, 3-pole Type LB thermal-magnetic breaker with an interchangeable trip unit. That can be especially useful when maintaining existing or legacy electrical equipment where retaining the correct breaker characteristics is the priority.
Review the system's interrupting requirements: 22kA at 600VAC, 30kA at 480VAC, or 42kA at 240VAC, depending on the application. The 40°C rating and interchangeable trip configuration should also match.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.
Specifications
- Width:5.5
- Height:10.13
- Depth:3.94
- Poles:3
- Amperes:350
- A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- Type:LB
- Approx Dimensions:5.50"W x 10.13"L x 3.94"D
- Additional Notes:40°C Rated, Thermal Magnetic Circuit Breaker With Interchangeable Trip Unit. This item includes load-side terminals. - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
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CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).