Siemens NGG3B030 Circuit Breaker – VL Series – NGG Frame – 30A – 3 Pole – 600VAC – Feed-Thru – Thermal Magnetic

The Siemens NGG3B030 is a VL Series molded case circuit breaker designed for reliable protection in three-phase industrial and commercial electrical distribution systems. Rated at 30A and 600VAC, this 3-pole breaker is built on the NGG frame platform and supports compact installations requiring flexible mounting options.

Equipped with a thermal-magnetic trip unit, the NGG3B030 provides Long-Time and Instantaneous (LI) protection, ensuring fast and reliable response to overload and short-circuit conditions. Its feed-thru construction and mounting versatility (screw or DIN rail) make it suitable for a wide range of panelboard and control applications, including reverse feed configurations where applicable.

This breaker is UL listed and engineered for durability, consistent interrupting performance, and dependable operation in demanding electrical environments.

Specifications

• Brand: Siemens / ITE
• Part Number: NGG3B030
• Series: VL Series
• Frame Type: NGG Frame
• Category: Molded Case Circuit Breaker
• Mounting Type: Feed-Thru / Screw or DIN Rail Mount
• Configuration: 3 Pole
• Phase: 3 Phase
• Protection Type: Thermal Magnetic
• Trip Functions: LI – Long-Time and Instantaneous

Electrical Ratings

• Current Rating: 30A
• Voltage Rating: 600VAC
• Interrupting Capacity: 25kA @ 480VAC
• Application Suitability: Reverse feed capable

Construction

• Compact NGG frame molded case design
• Feed-thru terminal configuration
• Flexible mounting (DIN rail or screw mount)
• Thermal-magnetic trip mechanism
• Line and load side lugs included
• Durable industrial-grade housing

Functions

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

Dimensions

• Height: 4 in
• Width: 3 in
• Depth: 6 in
• Weight: 2.9 lb

Applications

• Industrial control panels
• Commercial distribution systems
• Three-phase branch circuit protection
• Automation and machinery circuits
• Compact panelboard installations
• Reverse feed electrical systems

Returns are easy

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

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