HLB3300T - 300Amp Trip Unit Description
HLB3300T - 300Amp Trip Unit
When you're maintaining an existing electrical system, getting the replacement specifications right matters. The HLB3300T is a 300-amp, 3-pole thermal-magnetic trip unit designed for compatible LB and HLB circuit breaker frames. It features a 1500–3000 amp magnetic Hi-Low trip setting range and measures 4.00" W x 5.13"L x 3.50"D, giving maintenance teams and electricians clear specifications to compare against existing equipment.
Key Features and Benefits
- 300 Amp Rating: Made for compatible LB and HLB applications requiring a 300A trip unit.
- Three-Pole Design: Configured for three-pole circuit breaker applications.
- LB and HLB Frame Compatibility: Intended specifically for use with compatible LB and HLB breaker frames.
- Thermal Magnetic Trip: Provides thermal magnetic operation appropriate for its intended breaker configuration.
- 1500–3000 Amp Magnetic Setting Range: Offers a defined Hi-Low magnetic trip range for proper application matching.
- Useful for Existing Equipment: A practical fit for maintenance situations where keeping the established breaker configuration is important.
Technical Specifications
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Part Number: HLB3300T
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Type: HLB
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Component: Thermal magnetic trip unit
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Compatible Frames: LB and HLB
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Amperage: 300 A
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Poles: 3
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Magnetic Hi-Low Trip Setting Range: 1500–3000 A
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Width: 4.00 in.
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Height/Length: 5.13 in.
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Depth: 3.50 in.
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Overall Dimensions: 4.00"W x 5.13"L x 3.50"D
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Approximate Shipping Weight: 4.00 lbs.
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A.I.C. Rating & Voltage: Not specified in the available product information
Material Compliance and Certifications
Material compliance and certification details were not provided in the available specifications for the HLB3300T. For that reason, no specific UL, CSA, RoHS, or similar certification is claimed here. When matching this trip unit to existing equipment, check the HLB3300T part number, 300A rating, three-pole configuration, LB/HLB frame compatibility, physical dimensions, and 1500–3000-amp magnetic setting range. The complete electrical application should also be reviewed by qualified personnel to confirm suitability.
Where It Works Best
The HLB3300T 300A thermal-magnetic trip unit makes the most sense for existing electrical installations that already use a compatible LB or HLB circuit breaker frame. That can include commercial, industrial, institutional, and facility-maintenance environments where maintaining the established equipment configuration is preferable to changing the surrounding system.
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:4.0
- Height:5.13
- Depth:3.5
- Poles:3
- Amperes:300
- Type:HKA
- Sub-Category:TRIP UNIT
- Approx Dimensions:4.00"W x 5.13"L x 3.50"D
- Additional Notes:Thermal Magnetic Only for LB & HLB Frames. Magnetic Hi-Low Trip Setting Range: 1500-3000. - discontinued by the Manufacturer
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You may return unused items within 30 days of delivery for a full refund.
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