Siemens NGB1B035B - 35 A, 347 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Siemens NGB1B035B is a robust, single-pole bolt-on molded case circuit breaker engineered for reliable branch-circuit protection in panelboards and load centers. With a 35 A rating and a 347 V capability, this unit is built to handle everyday commercial or light-industrial demand while staying secure in vibration-prone environments. Offered by AmpState, it combines Siemens engineering with practical field performance you can trust.

• Bolt-on mounting for a rigid, vibration-resistant bus connection — enjoy a secure, durable fit that minimizes connection movement and maintenance over time.
• Thermal-magnetic trip unit — delivers stable protection with precise thermal overload sensing and fast magnetic response to short circuits, reducing the risk of arc-related damage.
• 1-pole, 35 A, 347 V rating — ideal for single-phase branch circuits in commercial or light-industrial settings that require reliable overcurrent and short-circuit protection.
• OEM-compatible design — specifically matched for easy replacement in Siemens OEM load centers and panelboards, ensuring seamless integration and consistent performance.
• Durable molded-case construction — designed for long service life in everyday building environments, with insulation and resilience to heat and vibration.

Who this is for: electrical professionals upgrading or refurbishing panelboards in offices, retail spaces, schools, or light industrial facilities; technicians needing a dependable, plug-replacement solution that stays in sync with Siemens systems.

Typical use scenarios:

• Replacing a worn or tripped breaker in Siemens panelboards where single-pole protection is required.
• Adding a dedicated 35 A circuit for high-demand lighting or receptacle runs in a commercial setting operating on 347 V distribution.
• Upgrading panels in retrofit projects where vibration resilience and OEM compatibility matter most.

Key specifications at a glance:

• Manufacturer: Siemens
• Part Number: NGB1B035B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 35 A
• Voltage Rating: 347 V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose this breaker over generic options? The combination of bolt-on mounting and a thermal-magnetic trip system provides a more stable, predictable protection profile in real-world installations, especially where panelboard fit and bus connections must endure vibration and thermal cycling. Its OEM compatibility minimizes installation risk and downtime, while its rating and construction align with the needs of residential, commercial, and light-industrial projects alike.

Practical tips for installation and care: ensure your panelboard model is designed for bolt-on breakers, confirm the bus type matches, and follow standard electrical safety practices. While the trip unit automatically protects circuits under fault conditions, always verify wiring integrity and circuit labeling after installation to maintain clear, safe operation.