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ABB MD350F4 - Molded Case Circuit Breaker 350A 600V

Thomas & Betts
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The ABB MD350F4 is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. It is rated for 600V AC and 350A continuous current, featuring a compact, high-strength thermoset insulation housing for durability in demanding environments. This unit complies with UL 489 and CSA C22.2 standards, ensuring reliable performance in panelboard and switchboard applications. Typical uses include motor control centers, feeder circuits, and main disconnect service in manufacturing and processing facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermoset insulation, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 350A
  • Dimensions: Not specified
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial power distribution, motor control centers, feeder circuits
  • Switch Type: Not specified
  • Configuration: Not specified
  • Coil Voltage Maximum: Not specified
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: Not specified
  • Voltage: 600V AC
  • Amperage: 350A
  • AIC rating: Not specified
  • Connection: Not specified
  • Poles: Not specified
  • Protection: Overcurrent, short-circuit
  • Functions: Thermal-magnetic trip
  • Frame Size: Not specified
  • Trip Type: Thermal-magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • 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: Not specified
  • Hz: Not specified
  • Coil Material: Not specified
  • 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 specified
  • Coil Voltage Minimum: Not specified
  • Wire: Not specified
  • Amperage Maximum: 350A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: UL 489, CSA C22.2
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Not specified
  • Frequency Rating: Not specified
  • Phase Connection: Not specified
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Not specified
  • Installation Type: Panelboard, switchboard
  • Item QTY: Not specified
  • Nema Starter Size: Not specified
  • Breaker Frame: Not specified
  • Current Rating: 350A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
  • UPC: 78620989324
  • GTIN: 00786209893246