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Cutler Hammer CH290ST - 90A 2-Pole Molded Case Circuit Breaker

Cutler Hammer
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The Cutler Hammer CH290ST is a molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for industrial and commercial electrical systems. It features a 90A current rating and a 240V AC voltage rating, housed in a compact CH frame with dimensions of 4.8" x 3.5" x 3.5" (LxHxW) and a weight of 1 lb. This two-pole, plug-in breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is certified to UL 489, and offers a 10kA interrupting capacity at 240V. It is engineered for use in panelboards and switchboards, supporting wire sizes from 10 AWG to 1/0 AWG for copper or aluminum conductors, and operates effectively within a temperature range of -25°C to 70°C (-13°F to 158°F).

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Plug-In Connection
  • Voltage Rating: 240V AC
  • Current Rating: 90A
  • Frame Size: CH
  • Poles: 2
  • AIC Rating: 10kA @ 240V
  • Phase: 1
  • Protection Functions: Long Time and Instantaneous Trip
  • Connection: Plug-In
  • Wire Size: 10 AWG to 1/0 AWG (Cu/Al)
  • Certification: UL 489
  • Operating Temperature: -25°C to 70°C (-13°F to 158°F)
  • Dimensions: 4.8 in x 3.5 in x 3.5 in (LxHxW)
  • Weight: 1 lb
  • Family: CH Series


Product Identification
  • UPC: 782113364278
  • GTIN: 00782113364278