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Siemens P1X42MC250A - 4-Pole 250A 600V Circuit Breaker

Siemens
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Siemens P1X42MC250A 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 250A continuous current, featuring a compact 4-pole configuration with a 42mm frame size and thermal-magnetic trip mechanism for reliable fault interruption. The breaker is housed in a durable metal enclosure with line and load side lug connections, weighing 21.451 lb and measuring approximately 6.5 x 4.5 x 3.5 inches. It complies with UL 489 and CSA C22.2 standards, ensuring safe operation in panelboards and switchboards. Typical applications include motor control centers, lighting panels, and branch circuit protection in manufacturing facilities and commercial buildings.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, 4-pole
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 6.5 x 4.5 x 3.5 inches (approximate)
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial power distribution, motor control centers, panelboards
  • Switch Type: Thermal-magnetic
  • Configuration: 4-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 7.5 x 5.5 x 4.5 inches
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 250A
  • AIC rating: 25kA at 600V AC
  • Connection: Line and load side lugs
  • Poles: 4
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit isolation and fault interruption
  • Frame Size: 42mm
  • Trip Type: Thermal-magnetic
  • Panel Type: Panelboard/Switchboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 250 kcmil
  • Metal Type: Steel enclosure
  • Panel Style: Flush mount
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: 1 per pole
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: 3.5 inches
  • Clas: Not applicable
  • Mounting: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: 150 HP at 600V
  • Aux Contacts: 1 NO/NC
  • CPT: Not included
  • Full Load Amps: 250A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 250A
  • Full Load Amp Minimum: 0A
  • Enclosure: Metal
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper/Aluminum
  • Amperage Maximum: 250A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 250 kcmil
  • 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: Siemens 42mm
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 42mm
  • Current Rating: 250A
  • 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: 78364336972
  • GTIN: 00783643369726