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Description
Siemens HED43B050L 50A 3-Pole 480V Molded Case Circuit Breaker Thermal Magnetic 18kA@480VProduct Description The Siemens HED43B050L is a 50 Amp, 3 Pole thermal magnetic molded case circuit breaker designed for commercial and industrial power distribution applications. Part of Siemens' ED frame family, this breaker provides dependable overload and short circuit protection and includes factory installed line and load lugs for simplified installation in panelboards, switchboards, and OEM equipment. Key Features Catalog Number: HED43B050L
Product Description
The Siemens HED43B050L is a 50 Amp, 3-Pole thermal magnetic molded case circuit breaker designed for commercial and industrial power distribution applications. Part of Siemens' ED frame family, this breaker provides dependable overload and short-circuit protection and includes factory-installed line and load lugs for simplified installation in panelboards, switchboards, and OEM equipment.
Key Features
- Catalog Number: HED43B050L
- Manufacturer: Siemens
- Amperage: 50 Amp
- Poles: 3-Pole
- Voltage Rating: 480VAC
- ED Frame Circuit Breaker
- Thermal Magnetic Trip Unit
- Factory Installed Line & Load Lugs
- Bolt-On Mounting
- Compact Design
- UL Listed
- CSA Certified
Interrupting Ratings (KAIC)
- 25kA @ 240VAC
- 18kA @ 480VAC
Technical Specifications
- Manufacturer: Siemens
- Catalog Number: HED43B050L
- Series: ED Frame
- Type: Molded Case Circuit Breaker
- Amperage: 50A
- Poles: 3
- Voltage Rating: 480VAC
- Frequency: 50/60 Hz
- Trip Unit: Thermal Magnetic
- Mounting Style: Bolt-On
- Connection Type: Factory Installed Line and Load Lugs
- Protection Functions:
- Long-Time Protection
- Instantaneous Protection
- Certifications:
- UL 489 Listed
- CSA Certified
Product Data
- Brand: Siemens
- Manufacturer: Siemens
- Model: HED43B050L
- Series: ED Frame
- Type: Molded Case Circuit Breaker
- Frame Size: ED
- Protection Type: Thermal Magnetic
- Mounting: Bolt-On
- Connection: Factory Installed Line and Load Lugs
- Condition: New / Reconditioned
- Phase: 3 Phase
- Rated Current: 50A
- Rated Voltage: 480VAC
- UPC: 783087018321
- GTIN: 00783087018321
- Dimensions:
- Height: 6.50 in
- Width: 4.13 in
- Depth: 3.93 in
- Weight: Approximately 4 lbs
- Country of Manufacture: United States
Compatible Equipment
- Siemens Panelboards
- Siemens Switchboards
- Siemens Distribution Equipment
- OEM Power Distribution Assemblies Utilizing ED Frame Breakers
Applications
- Commercial Buildings
- Industrial Facilities
- Manufacturing Equipment
- Power Distribution Systems
- OEM Electrical Equipment
- Motor Circuit Protection
Replacement Information
- Siemens ED Frame Circuit Breaker
- Direct replacement should match catalog number HED43B050L
- Thermal Magnetic Fixed Trip Configuration
- Factory Installed Line and Load Lugs Included
- Bolt-On Mounting Configuration
Important: The "L" suffix indicates factory-installed line and load lugs. The HED43B050L differs from the standard HED43B050 by including these lugs from the factory.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 505 reviews
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Product Reviews
★★★★★ 4
Nice boot!!
Size: 8.5, Color: Black
Very comfortable. Built well and obviously high quality. Fits a little big, about a size larger. They are a little thinner/cooler than the Danner Wildland and Haix Missoula. They do not have any NFPA rated tags or labels on the boot. Will upgrade the laces. Would love to see the boa system on this boot!
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Reviewed in the United States on January 2, 2020
★★★★★ 2
Needs work
Size: 12, Color: Black
I’m disappointed that I spent almost 400$ on a pair of boots and wore them for 3 days and both boot laces broke near the eyelets. As a wildland firefighter I need to be able to rely on my boots.
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Reviewed in the United States on November 6, 2020
★★★★★ 5
Like all Asics I've owned - Good
Size: 12 X-Wide, Color: Steel Grey/Cloud Grey
I've worn Asics for about 35 years now. Every pair I've had, and there have been many, have fit well and gotten the job done. The Gel-Venture 11 are performing as expected which is very well. The cushioning and support in the heel and arch are excellent. Very comfortable to walk and run in these shoes. Finally, and less importantly, the looks are just OK. The cheap "iron on" Asics logo doesn't look good. I've been purchasing Asics for as long as I have strictly for the performance quality anyway.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Nice, sturdy trail running and walking shoes
Size: 9.5, Color: Midnight/Grey Blue
I like Asics athletic shoes. They consistently fit my feet quite well. These shoes seem sturdy and have good grippy tread, ideal for light hiking, trail running and general every day use. Comfortable. My only gripe about Asics is the tread on previous shoes seems to wear out quickly. I walk and hike about 35-40 miles a week and the past Asics I’ve had usually lose their rear tread after six months so maybe that is normal.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Very comfortable
Size: 9.5, Color: Black/Cool Grey
Awesome shoe, very comfortable. As a trail shoe it is a little firmer than a running sneaker as expected. The unexpected was the comfort the shoe provided. Nice looking as well.
I've been wearing against most of my life. Always find myself coming back to them when I tried other brands.
Size consistency has always been near perfect.
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Reviewed in the United States on May 31, 2026