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C3 Controls 300-SMEI - Motor Circuit Protector 600V AC

C3 Controls
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C3 Controls 300-SMEI is a motor control circuit protector designed for providing reliable overload and short-circuit protection for industrial motors. It is rated for 600V AC and features a current rating that is configurable based on application requirements, housed within a durable, compact industrial enclosure constructed for harsh environments. This unit complies with relevant UL and IEC standards for safety and performance, ensuring suitability for integration into control panels and motor starter assemblies. Typical applications include protecting pumps, fans, conveyors, and other three-phase motor-driven machinery across manufacturing, processing, and material handling sectors.

Key Features & Specifications
  • Type: Thermal-magnetic circuit breaker for motor protection, manual operation
  • Voltage Rating: 600V AC
  • Current Rating: Configurable, see model suffix for specific amperage
  • Dimensions: Compact industrial form factor
  • Standards: UL 508, IEC 60947-2
  • Applications: Pumps, fans, conveyors, compressors, industrial machinery
  • Poles: 3
  • Protection: Thermal overload and magnetic short-circuit
  • Trip Type: Adjustable
  • Frame Size: SMEI
  • Connection: Screw terminal
  • Mounting: DIN rail mountable
  • Hz: 50/60 Hz
  • Enclosure: Industrial grade
  • Certification: cULus Listed
  • Phase: Three-phase
  • Installation Type: Panel-mounted
  • Weight: 5 lb


Product Identification
  • Manufacturer: C3 Controls
  • Model: 300-SMEI
  • Item Subcategory: Motor Control Part And Accessory