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Eaton MDLB3500 - Molded Case 500A 3-Pole Breaker

Cutler Hammer
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Eaton MDLB3500 is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 500A continuous current at 600VAC, with an interrupting capacity of 50kA at 480VAC, and utilizes a thermal magnetic trip mechanism with LI (Long-Time and Instantaneous) protection functions. The unit features a feed-thru connection, an M Frame size, and is constructed for panelboard or switchboard installation. This breaker is UL Listed and certified for use in 3-phase systems, meeting industry standards for reliable circuit protection. Typical applications include main or feeder protection in commercial and industrial electrical panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V
  • Current Rating: 500A
  • Dimensions: Length 0.01in, Height 0.01in, Width 0.01in
  • Standards: UL Listed
  • Applications: Industrial power distribution, feeder protection
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 500A
  • AIC rating: 50kA@480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • 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 specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • 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: Not specified
  • Hz: Not specified
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • 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 specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 500A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Feed-Thru
  • Frequency Rating: Not specified
  • Phase Connection: 3-Phase
  • Standards: UL Listed
  • Compatible Frames: M Frame
  • Installation Type: Panelboard/Switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: M Frame
  • Current Rating: 500A
  • 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: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 782114586297
  • GTIN: 00782114586297