SIEMENS NGB1B020BNAV Breaker 20A Molded Case Circuit Breaker

The SIEMENS NGB1B020BNAV is a single-pole molded case circuit breaker designed for panelboard mounting in electrical distribution systems. It is suitable for use by electrical distributors and switchgear suppliers requiring reliable overcurrent protection in lighting solutions and wire and cable applications. This breaker features a 20 amp continuous current rating with a 14kA interrupting capacity, making it appropriate for general-purpose circuit protection in commercial and industrial electrical installations.

Specifications

• Manufacturer: Siemens
• Manufacturer Part Number: NGB1B020BNAV
• Number of Poles: 1
• Continuous Current Rating: 20A @ 40¬∞C
• Interrupting Rating: 14kA RMS symmetrical amperes
• Mounting Type: Panelboard Mount
• Product Weight: 1.6760 lbs
• Wire Size Compatibility: #14‚Äì#6 AWG Copper, #12‚Äì#6 AWG Aluminum (60/75¬∞C)
• Torque for Line Terminal Screw: 18‚Äì23 lb-in (2‚Äì2.6 N¬∑m)
• Width: 1 inch (25.4 mm) per pole
• Insulation Requirement: Minimum dielectric strength 600 V/mil (24 kV/mm) when mounted on metal surface

Features

• Thermal-magnetic trip unit providing reliable overcurrent protection
• Load and line lugs included as standard for easy installation
• HACR rated for use with heating, air conditioning, and refrigeration equipment
• Designed for use exclusively with Siemens certified panelboards and switchboards
• Compatible with Nut Keeper Kit TNKG3 for secure wire connections (35‚Äì125A models)
• Meets CSA and UL 489 safety and performance standards
• Compact 1-inch width per pole allows high-density panelboard configurations

Downloads & Links

• Spec Sheet
• Spec Sheet