NGB2B100B - 100 Amp Circuit Breaker

NGB2B100B - 100 Amp Circuit Breaker

Upgrade your electrical panelboard with the Siemens NGB2B100B — a dependable 100 Amp, 2‑pole circuit breaker designed for dependable overload and short‑circuit protection. Built with a thermal‑magnetic trip unit, this breaker is a solid choice whether you’re wiring a commercial facility, a light industrial plant, or a residential building. It brings peace of mind to your electrical system by engaging quickly and accurately whenever a fault occurs, helping to keep wiring and equipment safe from damage.

Key Features and Benefits

• Precision Protection: The thermal‑magnetic trip unit responds precisely to overloads and short circuits, providing your panelboard with dependable defense when it counts.
• Versatile Voltage Support: Rated for both 600Y/347 V and 480Y/277 V systems, this breaker offers flexibility across a range of applications.
• High Interrupting Capacity: Capable of clearing faults up to 14 kAIC at 600Y/347 V and 25 kAIC at 480Y/277 V — powerful enough for demanding electrical loads.
• Straightforward Installation: Designed with load-side lugs only (TC1GG20) and supporting 8 – 1/0 AWG (CU/AL) wiring, installation is quick and straightforward for electricians and contractors.
• Compact Yet Durable: A 2‑pole G-frame design that balances space-saving dimensions with a weight light enough for easy handling, making it suitable for tight panelboard spaces.

Technical Specifications

• Model: NGB2B100B
• Current Rating: 100 Amps
• Poles: 2 (2‑pole)
• Voltage Ratings / Interrupting Capacity:
  • 600Y/347 V — 14 kAIC
  • 480Y/277 V — 25 kAIC
• Wire Range (CU/AL): 8 AWG to 1/0 AWG
• Mounting Style: G‑Frame, panelboard
• Dimensions:
  • Width: 2.0 inches
  • Height: 5.4 inches
  • Depth: 2.8 inches
• Weight: Approx. 1.89 lbs (0.86 kg)

Material Compliance and Certifications

• Environmental Standards: The NGB2B100B complies with the directive standards for environmentally responsible manufacturing, including RoHS regulations, which have been in effect since July 1, 2006.
• Recycling Guidelines: It also meets applicable take-back and recycling guidelines under the WEEE (2012/19/EU) directive, reflecting a conscious approach toward sustainability without sacrificing performance or safety.

Where It Works Best

• This circuit breaker shines in panelboard-mounted systems across both commercial and residential settings. It’s an intense match for electricians, facility managers, and contractors looking for a dependable two-pole breaker to protect lighting circuits, subpanels, HVAC units, small motors, or general power feeds. Because of its high interrupting capacity and flexible voltage compatibility, it’s well-suited for settings where safety and consistent performance are essential.