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MP3B100 - Molded Case Circuit Breaker 100A 600V

United Fuses
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MP3B100 is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. It is rated for 100 amps at 600 volts AC, with a compact frame size that supports efficient panel mounting. The breaker features a thermal-magnetic trip mechanism for reliable overload and fault response, housed in a rugged thermoplastic enclosure. It complies with UL 489 and CSA C22.2 standards, ensuring safe operation in commercial and industrial environments. Typical applications include motor control centers, lighting panels, and branch circuit protection in manufacturing facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Trip
  • Voltage Rating: 600 V AC
  • Current Rating: 100 A
  • Dimensions: Not specified
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial power distribution, motor control centers, lighting panels
  • Weight: 5.19 lb
  • Poles: 3
  • Frame Size: 100 A frame
  • Trip Type: Thermal-Magnetic
  • Breaker Type: Molded Case
  • Installation Type: Panel mount
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase: 3
  • Connection: Line and load
  • Protection: Overcurrent and short-circuit
  • Functions: Overload and fault protection
  • Panel Type: Distribution panel
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Panel
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 100 A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Compatible Frames: Not specified
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 100 A
  • Current Rating: 100 A
  • 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: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available