HMDL3300 300Amp Circuit Breaker
- 300 Amp
- 35k @ 600VAC; 65k @ 480VAC; 100k @ 240VAC
- 3 Pole
Purchase Options: New In Box
HMDL3300 300Amp Circuit Breaker Description
HMDL3300 300Amp Circuit Breaker
When your existing electrical system calls for an Eaton HMDL3300, getting the specifications right matters. This 300A, three-pole molded case circuit breaker is part of Eaton’s Series C family and uses the MDL frame with an HMDL breaker configuration. It is supplied as a complete breaker and features a T186 trip type, a 50–60 Hz frequency rating, and interrupting ratings of 100 kAIC at 240 VAC and 65 kAIC at 480 VAC. The HMDL3300 is UL Listed, making its certification easy to identify when reviewing requirements for an existing installation.
Key Features and Benefits
- 300A Rating for equipment requiring a 300-amp molded case circuit breaker.
- Three-pole design for compatible three-pole electrical distribution applications.
- Part of the Eaton Series C molded case circuit breaker family.
- HMDL breaker type with an MDL frame, important details when matching existing equipment.
- Supplied as a complete breaker.
- T186 trip type for applications calling for this specific configuration.
- 50–60 Hz frequency rating for compatible systems operating at either frequency.
Technical Specifications
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Manufacturer: Eaton
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Catalog Number: HMDL3300
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Product Name: Series C Complete Molded Case Circuit Breaker
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Product Type: Molded Case Circuit Breaker
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Series: Series C
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Circuit Breaker Type: HMDL
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Frame: MDL
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Circuit Breaker Frame Type: Complete Breaker
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Amperage Rating: 300A
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Number of Poles: Three-pole
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Trip Type: T186
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Frequency Rating: 50–60 Hz
- Terminal: Load-terminal
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Interrupt Rating at 240 VAC: 100 kAIC
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Interrupt Rating at 480 VAC: 65 kAIC
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Product Length/Depth: 18 in.
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Product Height: 8 in.
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Product Width: 11 in.
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Product Weight: 20 lb
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UPC: 782114586013
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Certification: UL Listed
Material Compliance and Certifications
The Eaton HMDL3300 is UL Listed. That gives maintenance professionals, electricians, and facility teams a clear certification reference when checking the breaker against the requirements of an existing system.
If a project has additional material, environmental, or regulatory requirements, those should be confirmed separately for catalog number HMDL3300. It’s better to verify the exact breaker rather than assume compliance information from another Series C model applies here.
Where It Works Best
The HMDL3300 makes the most sense for existing electrical distribution equipment that specifically calls for a 300A, three-pole HMDL molded-case circuit breaker on the MDL frame. It is particularly relevant for maintenance and replacement work where keeping the original system configuration intact is the priority.
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:8.25
- Height:16.0
- Depth:4.06
- Poles:3
- Amperes:300
- A.I.C. Rating & Volts:35k @ 600VAC; 65k @ 480VAC; 100k @ 240VAC
- Type:HMDL
- Approx Dimensions:8.25"W x 16.00"H x 4.06"D
- Additional Notes:Thermal-magnetic circuit breaker with interchangeable trip unit. 40°C rated. HACR rated. This item includes load terminals. - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
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Same Day Shipping
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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).