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Square D EZM315125CUX - 125A 3-Pole Molded Case Breaker (600V AC)

Square D
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Square D EZM315125CUX is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. This three-pole unit is rated for 600V AC and 125A continuous current, with a 25kA interrupting capacity at 480V AC, housed in a compact 3-inch frame. The breaker features a thermal-magnetic trip mechanism with a 125A fixed rating, constructed with a rugged thermoplastic case and line/load lug terminals for copper or aluminum conductors. It complies with UL 489 and CSA C22.2 standards for safety and performance in North American installations. Typical applications include feeder protection in panelboards, switchboards, and motor control centers within manufacturing plants, commercial buildings, and heavy industrial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, 3-pole
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 3-inch frame size
  • Standards: UL 489, CSA C22.2
  • Applications: Feeder protection in panelboards, switchboards, motor control centers
  • Switch Type: Circuit breaker
  • Configuration: Fixed mount
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Not specified
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 125A
  • AIC rating: 25kA at 480V AC
  • Connection: Line/load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Overload and short-circuit protection
  • Frame Size: 3 inches
  • Trip Type: Thermal-magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Accepts up to 250 kcmil
  • Metal Type: Thermoplastic case
  • Panel Style: Not specified
  • Bus Type: Not specified
  • 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: Not applicable
  • Clas: Not applicable
  • Mounting: Fixed
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 125A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 125A
  • Full Load Amp Minimum: 125A
  • Enclosure: Open type
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper/aluminum
  • Amperage Maximum: 125A
  • Amperage Minimum: 125A
  • Nema Rating: Not specified
  • Switch Style: Circuit breaker
  • Wire Size: 14 AWG to 250 kcmil
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Square D EZ series
  • Installation Type: Panelboard/switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: EZ
  • Current Rating: 125A
  • 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
  • Manufacturer: Schneider Electric
  • Weight: 5.19 lb


Product Identification
  • UPC: Not available
  • GTIN: Not available