SIEMENS NGB1C045B Breaker 45A 347V Molded Case Circuit Breaker

The Siemens NGB1C045B is a 1-pole molded case circuit breaker designed for panelboard mounting in electrical distribution systems. It provides reliable overcurrent protection with a continuous current rating of 45 amperes and is suitable for use in lighting solutions and wire and cable applications requiring 347V operation. This breaker is intended for use exclusively in Siemens panelboard and switchboard designs, ensuring compatibility and safety when installed with Siemens certified components. It is a key component for electrical distributors and switchgear suppliers seeking robust circuit protection solutions.

Specifications

• Manufacturer: Siemens
• Manufacturer Part Number: NGB1C045B
• Number of Poles: 1
• Continuous Current Rating: 45A
• Voltage Rating: 347V AC
• Interrupting Rating: 14 kA RMS symmetrical
• Product Weight: 1.6760 lbs
• UPC: 040892058758

Features

• Panelboard mount design for easy integration with Siemens systems
• Thermal-magnetic trip unit for reliable overcurrent protection
• Suitable for use with copper and aluminum conductors rated for 60¬∞C/75¬∞C
• Includes line and load lugs as standard for straightforward wiring
• HACR rated for heating, air conditioning, and refrigeration equipment
• Complies with CSA and UL standards for circuit protection
• Compact 1-inch width per pole for space-efficient installations

Downloads & Links

• Spec Sheet
• Spec Sheet