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Cutler Hammer HLB3300T - Thermal Magnetic Trip Unit 300A 600V

Cutler Hammer
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The Cutler Hammer HLB3300T is a three-pole thermal magnetic circuit breaker designed to provide reliable overcurrent protection for industrial power distribution systems. It features a fixed 300-ampere current rating and a 600-volt AC voltage rating, housed within a compact and durable construction. This unit complies with industry standards and is engineered for integration into compatible LB and HLB frame systems. Its LI (Long-time and Instantaneous) trip functions make it suitable for protecting feeders and branch circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Thermal Magnetic Circuit Breaker, Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Compatible Frames: LB, HLB
  • Family: MARK 75
  • Item Subcategory: Trip Units & Programmers
  • Weight: 2 lb


Product Identification
  • GTIN: 00786685442907