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ACP Electrical Fittings ST45400L - Circuit Breaker 600V 400A 3-Pole

ACP Electrical Fittings
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ACP Electrical Fittings ST45400L is a heavy-duty electrical fitting designed for secure conduit and cable protection in industrial environments. It is rated for 600V AC/DC and supports a current range of 30 to 400 amps, ensuring reliable power distribution. Constructed from durable metal with a compact frame size, it features a 3-pole configuration with a bolt-on connection type and a thermal-magnetic trip mechanism for overcurrent protection. This fitting complies with UL and NEMA standards, offering a 65kAIC rating at 480V AC for high-fault applications. It is commonly used in panelboards, switchboards, and motor control centers for commercial and industrial power systems.

Key Features & Specifications
  • Type: Metal conduit fitting with bolt-on connection
  • Voltage Rating: 600V AC/DC
  • Current Rating: 30-400A
  • Dimensions: Standard frame size
  • Standards: UL, NEMA
  • Applications: Panelboards, switchboards, motor control centers
  • Switch Type: Thermal-magnetic circuit breaker
  • Configuration: 3-pole
  • Coil Voltage Maximum: 600V
  • Temp Rating: 75°C
  • Shipping Dimensions: Standard
  • Phase: 3-phase
  • Voltage: 600V
  • Amperage: 30-400A
  • AIC rating: 65kA at 480V AC
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overcurrent
  • Functions: Circuit protection
  • Frame Size: Standard
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial
  • Breaker Type: Molded case
  • Control Voltage Minimum: 120V
  • Control Voltage Maximum: 600V
  • MCM Size: N/A
  • Metal Type: Steel
  • Panel Style: NEMA 1
  • Bus Type: Copper
  • Fuse Class: N/A
  • Insulation Temperature: 75°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Bolt-on
  • Hz: 50/60
  • Coil Material: Copper
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: 30-400A
  • Dist Voltage: 600V
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: 30A
  • Enclosure: NEMA 1
  • Relay Style: N/A
  • Coil Voltage Minimum: 120V
  • Wire: Copper
  • Amperage Maximum: 400A
  • Amperage Minimum: 30A
  • Nema Rating: NEMA 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 500 MCM
  • Certification: UL, NEMA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Bolt-on
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, NEMA AB1
  • Compatible Frames: Standard
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: Standard
  • Current Rating: 30-400A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 75°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 78138140337
  • GTIN: 00781381403375