Cutler Hammer ECN3421AAA - 100A 3-Pole Molded Case Circuit Breaker (600V AC)
Cutler Hammer ECN3421AAA - 100A 3-Pole Molded Case Circuit Breaker (600V AC)

Cutler Hammer ECN3421AAA - 100A 3-Pole Molded Case Circuit Breaker (600V AC)

Cutler Hammer
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Cutler Hammer ECN3421AAA is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. This three-pole unit is rated for 600V AC at 100A continuous current, with an interrupting capacity of 25kA at 480V AC, and features a thermal-magnetic trip mechanism for precise overload and fault response. The breaker measures 6.4 inches in depth, 13.85 inches in height, and 12.65 inches in width, weighing 15 lb, and is constructed with a rugged thermoplastic housing and line/load side lug connections. It complies with UL 489 and CSA C22.2 No. 5 standards for safety and performance in North American installations. Typical applications include motor control centers, panelboards, switchboards, and industrial machinery requiring reliable branch circuit protection.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, non-fused
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: 6.4 in x 13.85 in x 12.65 in (Depth x Height x Width)
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Motor control centers, panelboards, switchboards, industrial machinery
  • Poles: 3
  • Frame Size: ECN
  • Trip Type: Thermal-magnetic
  • Connection: Line/load side lugs
  • AIC Rating: 25kA at 480V AC
  • Phase: 3
  • Frequency Rating: 50/60 Hz
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Lug
  • Installation Type: Panelboard or switchboard
  • Weight: 15 lb


Product Identification
  • UPC: 78211405834
  • GTIN: 00782114058343