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75D73776D - Molded Case Circuit Breaker 100A 600V

United Fuses
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The 75D73776D is a heavy-duty industrial circuit breaker designed for primary overcurrent protection in high-power electrical distribution systems. It is rated for a maximum voltage of 600V AC and a continuous current of 100A, with a robust interrupting capacity of 25 kAIC at 480V AC to handle severe fault conditions. Constructed with a molded case thermoplastic frame and silver-alloy contacts, this three-pole breaker weighs 5.19 lb and features a thermal-magnetic trip mechanism for precise coordination of overload and short-circuit protection. It complies with UL 489 and CSA C22.2 No. 5 standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, switchboards, and industrial panelboards in manufacturing plants, data centers, and commercial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, three-pole
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: 6.0 in H x 4.0 in W x 3.5 in D
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Motor control centers, switchboards, industrial panelboards
  • Switch Type: Toggle handle
  • Configuration: Three-pole, three-phase
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 7.0 in H x 5.0 in W x 4.5 in D
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 25 kAIC at 480V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent (overload and short-circuit)
  • Functions: Circuit isolation and protection
  • Frame Size: 100A frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper alloy contacts
  • Panel Style: Surface mount
  • Bus Type: Not applicable
  • 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: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 100A
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: #14 AWG to #1/0 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel mount
  • Terminal Connection: Lug type
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: Not applicable
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 100A
  • 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: Not available
  • GTIN: Not available