SIEMENS NGB3B045V Circuit Breaker 45A 3-Pole 480Y

The SIEMENS NGB3B045V is a 3-pole circuit breaker designed for panelboard and switchboard applications, providing reliable circuit protection with a 45 ampere rating. As a product from a leading electrical distributor and switchgear supplier, it supports industrial and commercial electrical systems requiring robust wire and cable protection. This breaker is suitable for use with Siemens certified components in lighting solutions and electrical distribution systems.

Specifications

• Manufacturer: Siemens
• Manufacturer Part Number: NGB3B045V
• Number of Poles: 3
• Rated Current: 45 Amperes
• Voltage Rating: 480Y/277 VAC
• Interrupting Rating: 25 kA RMS symmetrical amperes
• Product Weight: 15.829 lbs
• UPC: 783643555389
• Width Unit of Measure: Inches
• Height Unit of Measure: Inches
• Length Unit of Measure: Inches

Features

• Load side lugs supplied as standard for secure wire connection
• Compatible with copper and aluminum conductors, 60/75¬∞C wire
• Includes retainer clips for mounting stability
• UL489 and IEC 60947-2 certified for global electrical standards compliance
• Designed exclusively for Siemens panelboard and switchboard designs
• Torque specifications for wire connections ensure proper installation: 40 lb-in for #8 AWG copper/aluminum conductors
• Compact design with 1 inch width per pole for space-efficient installation

Downloads & Links

• Spec Sheet
• Spec Sheet
• Spec Sheet