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Cutler Hammer E34SMB120 - Molded Case Circuit Breaker 20A 120V

Cutler Hammer
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Cutler Hammer E34SMB120 is a molded case circuit breaker designed for primary overcurrent protection in industrial power distribution systems. It is rated for 120 volts AC with a current rating of 20 amps, providing reliable fault interruption. The unit measures 3.4 inches in depth, 2.2 inches in height, and 2.4 inches in width, weighing 0.4 pounds, and features a compact, durable construction suitable for panelboard mounting. This breaker complies with UL and NEMA standards for safety and performance in commercial and light industrial environments. Typical applications include branch circuit protection in lighting panels, motor control centers, and general-purpose load centers.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 120 V AC
  • Current Rating: 20 A
  • Dimensions: 3.4 in x 2.2 in x 2.4 in (Length/Depth x Height x Width)
  • Weight: 0.4 lb
  • Standards: UL 489, NEMA AB-1
  • Applications: Branch circuit protection, lighting panels, motor control centers
  • Poles: 1
  • Frame Size: E34
  • Trip Type: Thermal-magnetic
  • Breaker Type: Molded case
  • Installation Type: Panelboard mount
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 60 Hz
  • Phase: Single
  • Connection: Line and load
  • Protection: Overcurrent and short circuit
  • Functions: Overload and short circuit protection
  • Panel Type: Standard distribution panel
  • Bus Type: Copper or aluminum
  • Mounting: Bolt-on
  • Enclosure: Open type
  • Circuit Breaker Mounting Style: Bolt-on
  • Compatible Frames: E34 series


Product Identification
  • UPC: 78211389326
  • GTIN: 00782113893266