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Siemens NR74 - 100A 3-Pole 600V AC Circuit Breaker

Siemens
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The Siemens NR74 is a heavy-duty industrial circuit breaker designed to protect electrical systems from overloads and short circuits. It is rated for a voltage of 600V AC and a current of 100A, with a compact frame size and robust construction for reliable performance in demanding environments. This breaker complies with UL and CSA standards, ensuring safety and reliability in industrial applications. It is typically used in motor control centers, panelboards, and switchboards for commercial and industrial power distribution.

Key Features & Specifications
  • Type: Industrial circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: Standard frame size
  • Standards: UL, CSA
  • Applications: Motor control centers, panelboards, switchboards
  • Switch Type: Thermal-magnetic
  • Configuration: Fixed mount
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C
  • Shipping Dimensions: Standard
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 10kA
  • Connection: Line and load
  • Poles: 3
  • Protection: Overload and short circuit
  • Functions: Circuit interruption
  • Frame Size: NR74
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Steel
  • Panel Style: Enclosed
  • Bus Type: Copper
  • 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: Fixed
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • 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: 100A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper
  • Amperage Maximum: 100A
  • Amperage Minimum: 100A
  • Nema Rating: 1
  • Switch Style: Thermal-magnetic
  • Wire Size: #14 to #1/0
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: NR74
  • Installation Type: Panel mount
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: NR74
  • Current Rating: 100A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: 078364308055