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Siemens ECMFGN125 - Molded Case Breaker 125A 600V AC

Siemens
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Siemens ECMFGN125 is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. It is rated for 125 amps at 600 volts AC, providing reliable interruption of fault currents with a 25 kAIC rating at 480V. The unit features a three-pole configuration with a thermal-magnetic trip mechanism, housed in a compact frame that weighs 5.19 lb and supports bolt-on mounting for panelboard installation. This breaker complies with UL 489 and CSA standards, ensuring safe operation in commercial and industrial environments. Typical applications include branch circuit protection in switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, three-pole
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: Standard frame size for panelboard mounting
  • Standards: UL 489, CSA
  • Applications: Industrial power distribution, branch circuit protection
  • Switch Type: Molded case
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard for frame
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 125A
  • AIC rating: 25 kAIC at 480V
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit interruption
  • Frame Size: 125A frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: Industrial
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 75°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-on
  • 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: 0A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 125A
  • Amperage Minimum: 0A
  • Nema Rating: Not specified
  • Switch Style: Molded case
  • Wire Size: Not specified
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA
  • Compatible Frames: Siemens panelboards
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 125A
  • Current Rating: 125A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: 04089215342
  • GTIN: 00040892153422