Siemens VL Series NGG3B050 50 Amp Molded Case Circuit Breaker – 3 Pole – 600V – 25 kA @ 480V – NGG Frame

The Siemens VL Series NGG3B050 is a 50A, three-pole molded case circuit breaker designed for electrical circuit protection in industrial and commercial power distribution systems. It features a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) protection functions, providing overload and short-circuit protection. Its feed-through configuration, reverse-feed suitability, and flexible mounting options support a range of compatible installation requirements.

Specifications

• Brand: Siemens
• Series: VL
• Type: NGG
• Catalog Number / MPN: NGG3B050
• Rated Current: 50A
• Poles: 3 Pole
• Phase: 3 Phase
• Rated Voltage: 600V
• Interrupting Capacity: 25 kA @ 480V
• Interrupting Class: Standard
• Trip Unit: Thermal-Magnetic
• Trip Functions: LI – Long-Time and Instantaneous
• Mounting: Screw or DIN rail
• Configuration: Feed-through
• Terminals: Line and load side lug terminals
• Reverse-Feed Capability: Suitable for reverse-feed applications

Part Numbers & Identification

• Manufacturer: Siemens
• Product Family: VL Series
• Catalog Number: NGG3B050
• Frame: NGG
• Product Type: Molded Case Circuit Breaker (MCCB)
• UPC:783643363397

Compatibility

Suitable for Siemens VL Series NGG-frame applications requiring a 50A, three-pole MCCB with thermal-magnetic LI protection, 600V rating, and 25 kA interrupting capacity at 480V. Supports screw or DIN rail mounting, feed-through connections, and reverse-feed installations.

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