SKU: 10097214164

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

Shipping Notes
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Exchange/Return Notes
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SKU: 10097214164

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Beatrice Holsombach
Birmingham, US
★★★★★ 5
Great size options and value
Color: Carbonized Bamboo(Brown)
These are perfect weight and sizes ! Easy to clean and esthetically pleasing ! Love that they have the holder for organization! Very well made and sturdy and a great value!
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Reviewed in the United States on March 24, 2026
R
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Randy J.
West Palm Beach, US
★★★★★ 5
Very nice.
Color: Carbonized Bamboo(Brown)
Look great,we will see how long they last.
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Reviewed in the United States on April 29, 2026
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Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 5
Good and sturdy
Color: Carbonized Bamboo(Brown)
Good quality and affordable love that it has a stand
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Reviewed in the United States on April 8, 2026
L
Verified Purchase
Lisa Schafer
Bozeman, US
★★★★★ 5
Nice quality
Color: Carbonized Bamboo(Brown)
I really love these boards. Feel good to handle and cut on. Easy to clean and has a little stand for them. This would be a great house warming gift .
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Reviewed in the United States on March 7, 2026
M
Verified Purchase
marvin menodza
San Leandro, US
★★★★★ 4
Nice but discolors after couple of washes
Color: Carbonized Bamboo(Brown), Color: Carbonized Bamboo(Brown)
The color lightens up a bit after washing but they are nice looking and sturdy.
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Reviewed in the United States on January 16, 2026

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