Siemens HED42B090 - Molded Case Circuit Breaker 90A 480V 42kA AIC
Siemens HED42B090 - Molded Case Circuit Breaker 90A 480V 42kA AIC

Siemens HED42B090 - Molded Case Circuit Breaker 90A 480V 42kA AIC

Siemens
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Siemens HED42B090 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial electrical systems. It features a 90A current rating and a 480V voltage rating, housed within a compact 125A/ED frame with a 2.5 lb weight and load side lug connections for panelboard installation. This thermal magnetic breaker is constructed for high interrupting capacity, offering a 42kA AIC rating at 480V, and operates reliably across a temperature range of -25 to 70 °C. It complies with key industry standards including UL 489 and IEC 60947-2, ensuring safe integration into SB switchboards and Sentron panelboards for robust circuit protection in commercial and industrial power distribution applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, High Interrupting Capacity
  • Voltage Rating: 480V AC
  • Current Rating: 90A
  • Frame Size: 125A/ED
  • Poles: 2
  • AIC Rating: 42kA @ 480V
  • Phase: 1
  • Connection: Lug In Panelboard, Load Side Lug
  • Functions: LI - Long-Time and Instantaneous Trip
  • Standards: IEC 60947-2, UL 489
  • Panel Type: SB Switchboards, Sentron Panelboards
  • Phase Connection: Any
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • MCM Size: Min. Wire Size 12 AWG (Al), 14 AWG (Cu); Max. Wire Size 10 AWG
  • Weight: 2.5 lb
  • Breaker Type: High Interrupting Capacity
  • Protection: Thermal Magnetic
  • Family: Sentron Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643210059
  • GTIN: 00783643210059