SKU: 24072368995

Siemens NEB3B040B 40A 3-Pole 480V EG Frame Circuit Breaker Thermal Magnetic LI 35kA@480V 22kA@600V

Sale price$749.70 Regular price$833.00
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Description

Siemens NEB3B040B 40A 3-Pole 480V EG Frame Circuit Breaker Thermal Magnetic LI 35kA@480V 22kA@600VPRODUCT DESCRIPTION The Siemens NEB3B040B is a 40 Amp, 3 Pole EG frame molded case circuit breaker engineered for commercial lighting, power distribution, and industrial panelboard applications. As a core component of the Siemens low voltage line, this breaker features a non interchangeable fixed thermal magnetic trip unit delivering permanent LI (Long Time, Instantaneous) system protection against overloads and short circuits. Built with a standard

PRODUCT DESCRIPTION The Siemens NEB3B040B is a 40 Amp, 3-Pole EG frame molded case circuit breaker engineered for commercial lighting, power distribution, and industrial panelboard applications. As a core component of the Siemens low voltage line, this breaker features a non-interchangeable fixed thermal-magnetic trip unit delivering permanent LI (Long-Time, Instantaneous) system protection against overloads and short circuits. Built with a standard interrupting capacity NEB frame, it is designed for reliable panelboard mounting and includes load-side lug terminals for stable wire connections.

KEY FEATURES • Catalog Number: NEB3B040B • Manufacturer: Siemens • Amperage: 40 Amp • Poles: 3-Pole • Voltage Rating: 480VAC / 600Y/347VACSiemens NEB Series (EG-Frame Size)Thermal-Magnetic Trip UnitLI Protection Functions • Fixed Long-Time Protection • Fixed Instantaneous Protection • Panelboard Bolt-On Mounting StyleHACR and HID RatedUL 489 ListedCSA Certified

INTERRUPTING RATINGS (KAIC) • 85kA @ 240VAC • 35kA @ 480VAC • 22kA @ 600Y/347VAC • 35kA @ 250VDC

TECHNICAL SPECIFICATIONS • Manufacturer: Siemens • Catalog Number: NEB3B040B • Series: NEB Series / EG Frame • Frame Size: EG Frame • Type: Molded Case Circuit Breaker • Amperage: 40A • Poles: 3 • Voltage Rating: 600Y/347VAC Max • Frequency: 50/60 Hz • Trip Unit: Fixed Thermal-Magnetic • Protection Functions: Long-Time (L), Instantaneous (I) • Mounting Style: Bolt-On Panelboard Mount • Connection Type: Load Side Lugs Installed Only (TA1EG10) • Wire Size: 8 AWG to 1/0 AWG (Copper/Aluminum) • Standards: UL 489, CSA C22.2 No. 5, IEC 60947-2, CE

PRODUCT DATA • Brand: Siemens • Manufacturer: Siemens Industry, Inc. • Model: NEB3B040B • Series: NEB Frame • Frame: EG Frame Size • Type: Thermal-Magnetic Molded Case Circuit Breaker • Protection: LI (Long-Time, Instantaneous) • Trip Unit: Non-Interchangeable Fixed Trip • Mounting: Bolt-On / Panelboard Unit Mount• Connection: Load Lug Terminals Installed • Condition: New / Reconditioned • Phase: 3 Phase • Rated Current: 40A • Rated Voltage: 600Y/347VAC Max • UPC: 783643558557 • GTIN: 00783643558557 • Weight: Approximately 2.6 lbs • Country of Manufacture: Dominican Republic

COMPATIBLE EQUIPMENT • Siemens P1 Panelboards • Siemens P2 Panelboards • Siemens P3 Panelboards • Siemens P4 and P5 Power Distribution Panelboards • OEM Power Distribution Assemblies

APPLICATIONS • Commercial Lighting and Branch Power Panels • Industrial Distribution Infrastructure • HVAC Control Circuit Branch Protection • Institutional Power Distribution Systems

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SKU: 24072368995

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4.7 ★★★★★
Based on 11 reviews
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A
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avalancheryder
Pawtucket, US
★★★★★ 5
Absolute game changer for chronically dry feet/cracked heels
Size: S (up to size 7)-Beige
I had recently bought a pair of silicone heel/ankle wraps to fill out my boot a little since I noticed my heels were lifting when I was skating. I tested them out around the house and noticed they left my heels softer while the rest of my sockless feet got quite dry. So I got these full foot silicone socks to see the effect of having my whole foot covered. I slather the entirety of my feet with Dr. Scholl's Severe Cracked Heel Restoring Balm (love how convenient it is to apply it to my feet with the solid stick form) and then slip them into these silicone socks. After just a couple hours, when I pull out my feet they're (a teeny bit sweaty at first), but then overall soft and smooth and have absorbed the balm fully leaving barely any residue in the silicone sock. I find these silicone socks generally comfortable; I wear them in the evenings while relaxing on the couch, take them off after a couple hours and let my feet breathe a bit, and then reapply my balm and socks and wear them to bed. If I wake up in the middle of the night, which I almost always do (not because of the socks), I'll take the socks off and allow my feet to breathe again. I wear a woman's size 6 shoe and the small size is pretty comfortable. However, I made the mistake of wearing them while being on my feet for a couple hours straight during household chores -- they must've somehow cut off my circulation a bit with the standing, so I wouldn't recommend wearing these silicone socks while being active. And since they're not exactly my foot size, they slide around sometimes and will start to feel tight at my big toe. But if that happens, I just tug on the toe area of the sock to give my big toe more wiggle room and problem solved. Prior to wearing these socks, I was soaking and doing heavy duty exfoliation of my feet every week. These socks seem like they'll work to help me extend the time between soakings and exfoliations. The 5 pack is a great value. So far none have torn, so they seem rather durable. Not sure what I could even do to tear a hole in these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
B
Verified Purchase
Beverly Durham
Pawtucket, US
★★★★★ 5
Works wonders
Size: M (up to size 9)-Beige
Works wonders for dry feet, like really dry, hard feet.
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Reviewed in the United States on February 23, 2026
T
Verified Purchase
Therapy by the Sea
Louisville, US
★★★★★ 4
EXCELLENT FEET MOISTURE PROTECTION
Size: S (up to size 7)-Beige, Size: S (up to size 7)-Beige
Why did you pick this product vs others?: I have burns on my feet and needed something that I could put burn creme on and still walk around in with. I tried other silicone footsie but they would teae really easily. So far these are doing really well for this purpose. They are holding their shape too. The only caution I have is the same with all silicone footsies: They can be slippery on wet floors, so also wear with socks over them. The biggest issues is when they say a size they mean it. The silicone used in these have little give in them, so they won't stretch out and loose their shape. That can be a good thing, or not so good, depending on how well they fit your feet and what your intent is with wearing these. The other issue is if they fit snug around those toes, that tends to be where the first tear in the material will happen. Because of how these are made, the tear is actually more like cracking in the material and once it occurs you won't be able to get much use out of the sock after that. If you are planning to wear them around the house or for long term use, I suggest going up a size or look for the toeless options.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2025
S
Verified Purchase
Shawna
Battle Creek, US
★★★★★ 3
Silicone socks
Size: M (up to size 9)-Beige
The socks are sized large. The quality of the silicone is good. But they slide around on your feet if you try to walk, making them difficult to use and a bit uncomfortable. Unless you are able to sit for long periods of time the likely will not work well. Recommend looking for a better value.
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Reviewed in the United States on October 27, 2024
A
Verified Purchase
Ann
Boise, US
★★★★★ 5
Effective
Size: L (up to size 11)-Pink
Fantastic. I put lotion on my feet & wear them when I go to sleep. I often wake up during the night and will remove them to find my feet soft and smooth. They are strong and fit my size 10 womens’ size.
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Reviewed in the United States on March 27, 2026

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