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Square D EZMR315125CUX - Molded Case Circuit Breaker 125A 600V

Square D
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Square D EZMR315125CUX is a molded case circuit breaker designed for overcurrent protection and switching in industrial power distribution systems. It is rated for 600V AC and 125A continuous current, providing reliable fault interruption. The unit measures 57.1 inches in height, 12.2 inches in width, and 7.09 inches in depth, with a weight of 100.101 lb, featuring a robust thermoplastic housing for durability. This breaker complies with UL 489 and CSA C22.2 standards, ensuring safety and performance in demanding environments. It is typically used in panelboards, switchboards, and motor control centers for branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, thermal-magnetic trip, fixed thermal and magnetic settings
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 57.1 in (1451 mm) x 12.2 in (311 mm) x 7.09 in (180 mm) (Height x Width x Depth)
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial power distribution, panelboards, switchboards, motor control centers
  • Switch Type: Toggle
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 57.1 in x 12.2 in x 7.09 in
  • Phase: 3-Phase
  • Amperage: 125A
  • AIC rating: 25 kA at 600V AC
  • Connection: Line and load side lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Overload and short-circuit protection
  • Frame Size: EZMR
  • Trip Type: Thermal-magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper lugs
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not applicable
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • 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: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not included
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 125A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: #14 AWG to #1/0 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel mount
  • Terminal Connection: Lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: EZMR series
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: EZMR
  • 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


Product Identification
  • UPC: 78590119810
  • GTIN: 00785901198109