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Siemens NBK03 - 3-Pole 100A Circuit Breaker (600V AC)

Siemens
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Siemens NBK03 is a 3-pole circuit breaker designed for branch circuit protection in industrial power distribution systems. It is rated for 600V AC and 100A, with a 10kAIC at 480V, and features a thermal-magnetic trip mechanism for overload and short-circuit protection. The unit weighs 5.19 lb and is constructed with a compact frame for panelboard mounting, utilizing a bolt-on connection type. It complies with UL 489 and CSA standards for safety and reliability. This breaker is commonly used in commercial and industrial applications requiring robust overcurrent protection.

Key Features & Specifications
  • Type: 3-pole thermal-magnetic circuit breaker
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: Compact frame size
  • Standards: UL 489, CSA
  • Applications: Branch circuit protection in industrial panels
  • Switch Type: Thermal-magnetic
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: Standard 40°C ambient
  • Shipping Dimensions: Standard for frame size
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 10kA at 480V
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overload and short-circuit
  • Functions: Branch circuit protection
  • Frame Size: NBK
  • Trip Type: Thermal-magnetic
  • Panel Type: Panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Steel frame
  • Panel Style: Industrial
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 100A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: Not specified
  • Switch Style: Thermal-magnetic
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Bolt-on
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA
  • Compatible Frames: NBK series
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: NBK
  • Current Rating: 100A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78364356221
  • GTIN: 00783643562219