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Cutler Hammer EHD3040LS21 - MCCB 40A 3-Pole 480V

Cutler Hammer
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Cutler Hammer EHD3040LS21 is a molded case circuit breaker engineered for overcurrent and short-circuit protection in industrial and commercial power distribution systems. This three-pole unit is rated for 40 amperes at 480 VAC, with interrupting capacities of 18 kA at 240 VAC and 14 kA at 480 VAC. It features a bolt-on mounting configuration and a thermal magnetic trip unit for dependable overload and fault response, housed in a compact EHD series frame weighing 5.19 lb. The breaker is UL Listed, ensuring compliance with rigorous safety and performance standards. Typical applications include branch circuit protection in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Manufacturer: Cutler Hammer
  • Part Number: EHD3040LS21
  • Amperage: 40 Amps
  • Voltage Rating: 480 VAC
  • Poles: 3
  • Mounting Type: Bolt-On
  • Interrupt Rating: 18 kA at 240 VAC, 14 kA at 480 VAC
  • Trip Unit: Thermal Magnetic
  • Series/Frame: EHD
  • Certifications: UL Listed
  • Weight: 5.19 lb