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ACP Electrical Fittings MIGB350LS30AC - 350A 3-Pole MCCB 600V

ACP Electrical Fittings
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ACP Electrical Fittings MIGB350LS30AC is a molded case circuit breaker designed for overcurrent protection and electrical system isolation in industrial power distribution. It is rated for 600V AC, 350A continuous current, and features a compact 3-pole design with a thermal-magnetic trip mechanism for reliable short-circuit and overload protection. The unit weighs 5.19 lb and is constructed with a durable thermoplastic housing and line/load side lugs for secure copper or aluminum conductor termination. This breaker complies with UL 489 and CSA C22.2 standards, ensuring safe operation in panelboards, switchboards, and motor control centers. Typical applications include branch circuit protection, feeder protection, and main disconnect service in manufacturing plants, commercial buildings, and heavy machinery.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, 3-pole
  • Voltage Rating: 600V AC
  • Current Rating: 350A
  • Dimensions: Standard 3-pole frame size
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial power distribution, feeder protection, main disconnect
  • Switch Type: Toggle handle
  • Configuration: 3-pole, 3-phase
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard packaging
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 350A
  • AIC rating: 25kA @ 480V
  • Connection: Line/load lugs
  • Poles: 3
  • Protection: Overcurrent, short-circuit
  • Functions: Circuit isolation, overload protection
  • Frame Size: 350A frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial panelboard/switchboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Up to 500 MCM
  • Metal Type: Copper/aluminum compatible
  • Panel Style: Standard
  • Bus Type: Standard
  • Fuse Class: Not applicable
  • Insulation Temperature: 75°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Standard
  • Clas: Not applicable
  • Mounting: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 350A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 350A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open (no enclosure)
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper/aluminum
  • Amperage Maximum: 350A
  • Amperage Minimum: 0A
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: #6 AWG to 500 MCM
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Standard 3-pole
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 350A
  • Current Rating: 350A
  • 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: Not available
  • GTIN: Not available