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ACP Electrical Fittings MIGB500L25AC - Molded Case Breaker 600V 500A

ACP Electrical Fittings
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ACP Electrical Fittings MIGB500L25AC is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial electrical distribution systems. It is rated for 600V AC and 500A continuous current, with a 25kA interrupting capacity at 480V AC, housed in a compact, three-pole frame with a thermal-magnetic trip mechanism for precise overload and fault response. The unit features a 5.19 lb weight, a NEMA 1 enclosure, and line/load lug connections compatible with copper or aluminum conductors up to 500 MCM. It complies with UL 489 and CSA C22.2 standards, ensuring reliable performance in panelboards, switchboards, and motor control centers. Typical applications include feeder protection, branch circuit isolation, and backup protection for transformers and large motors 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: 500A
  • Interrupting Capacity: 25kA at 480V AC
  • Dimensions: Not specified
  • Standards: UL 489, CSA C22.2
  • Applications: Feeder protection, branch circuit isolation, motor control centers
  • Switch Type: Toggle handle
  • Configuration: Three-pole, line/load lug terminals
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 500A
  • AIC rating: 25kA at 480V AC
  • Connection: Lug type, copper/aluminum
  • Poles: 3
  • Protection: Overcurrent, short-circuit
  • Functions: Overload and fault interruption
  • Frame Size: Not specified
  • Trip Type: Thermal-magnetic
  • Panel Type: NEMA 1
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Up to 500 MCM
  • 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 mount
  • Hz: 50/60 Hz
  • 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: NEMA 1
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 500A
  • Amperage Minimum: Not specified
  • Nema Rating: NEMA 1
  • Switch Style: Toggle
  • Wire Size: Up to 500 MCM
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Not specified
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Not specified
  • Current Rating: 500A
  • 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