Siemens NGB2B090B Circuit Breaker – VL Series – NGB Frame – 90A – 2 Pole – 600VAC – Bolt-On – Thermal Magnetic

The Siemens NGB2B090B is a VL Series molded case circuit breaker designed for dependable protection in panelboard and low-voltage distribution systems. Rated at 90A and 600VAC, this 2-pole breaker is built on the NGB frame platform and is suitable for single-phase applications requiring compact yet high-performance circuit protection.

Equipped with a thermal-magnetic trip unit, the NGB2B090B provides Long-Time and Instantaneous (LI) protection, ensuring fast response to overload and short-circuit faults. Its bolt-on design enables secure installation in panelboards and supports reverse feed applications where applicable.

This breaker is UL listed and engineered for reliable operation, durability, and consistent interrupting performance in commercial and industrial environments.

Specifications

• Brand: Siemens / ITE
• Part Number: NGB2B090B
• Series: VL Series
• Frame Type: NGB Frame
• Category: Molded Case Circuit Breaker
• Mounting Type: Panelboard Bolt-On
• Configuration: 2 Pole
• Phase: 1 Phase
• Protection Type: Thermal Magnetic
• Trip Functions: LI – Long-Time and Instantaneous

Electrical Ratings

• Current Rating: 90A
• Voltage Rating: 600VAC
• Interrupting Capacity: 25kA @ 480VAC
• Application Suitability: Reverse feed capable (panelboard dependent)

Construction

• Compact NGB frame molded case design
• Bolt-on mounting system for panelboards
• Thermal-magnetic trip mechanism
• Load side lugs included
• Industrial-grade durable housing

Functions

• Overload protection
• Short-circuit protection
• Long-time delay protection
• Instantaneous fault protection
• Circuit switching and isolation

Dimensions

• Height: 2 in
• Width: 5.54 in
• Depth: 2.8 in
• Weight: 1.88 lb

Applications

• Commercial electrical panelboards
• Industrial distribution systems
• Lighting and control circuits
• Single-phase branch circuit protection
• High-voltage low-current applications
• Reverse feed panelboard systems

Returns are easy

You may return items within 30 days of delivery for a refund.

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