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Siemens HED41B050 - Molded Case Circuit Breaker 50A 277V

Siemens
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Siemens HED41B050 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial electrical systems. It features a 50A current rating and a 277V voltage rating, housed within a compact 1" x 6.35" (25.4 mm x 161.3 mm) frame with a load-side lug connection for panelboard installation. This thermal-magnetic breaker complies with IEC 60947-2 and UL 489 standards, ensuring safe operation across a temperature range of -25 to 70 °C. It is typically applied in single-phase systems within SB switchboards and Sentron panelboards for branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, High Interrupting Capacity
  • Voltage Rating: 277V AC
  • Current Rating: 50A
  • Dimensions: 1 in x 6.35 in (25.4 mm x 161.3 mm)
  • Standards: IEC 60947-2, UL 489
  • Applications: SB Switchboards, Sentron Panelboards, Industrial Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Coil Voltage Maximum: Not Applicable
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Shipping Dimensions: Not Specified
  • Phase: 1
  • Voltage: 277V
  • Amperage: 50A
  • AIC rating: 25kA @ 277V
  • Connection: Lug In Panelboard
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous Trip)
  • Frame Size: 125A/ED
  • Trip Type: Thermal Magnetic
  • Panel Type: SB Switchboards, Sentron Panelboards
  • Breaker Type: High Interrupting Capacity
  • Control Voltage Minimum: Not Applicable
  • Control Voltage Maximum: Not Applicable
  • MCM Size: Accepts Wire Size 10 AWG to 4 AWG
  • Metal Type: Not Specified
  • Panel Style: Not Specified
  • Bus Type: Not Specified
  • Fuse Class: Not Applicable
  • Insulation Temperature: Not Specified
  • Inductance: Not Specified
  • Impedance: Not Specified
  • Barrels: Not Applicable
  • Class Rating: Not Specified
  • Diameter: Not Specified
  • Velocity: Not Applicable
  • Clip Center: Not Applicable
  • Class: Not Specified
  • Mounting: Panelboard Mount
  • Hz: 50/60 Hz
  • Coil Material: Not Applicable
  • Horse Power: Not Specified
  • Aux Contacts: None
  • CPT: Not Applicable
  • Full Load Amps: Not Specified
  • Dist Voltage: Not Specified
  • Bucket Size: Not Applicable
  • Bucket Style: Not Applicable
  • Bucket Type: Not Applicable
  • Full Load Amp Maximum: Not Specified
  • Full Load Amp Minimum: Not Specified
  • Enclosure: Molded Case
  • Relay Style: Not Applicable
  • Coil Voltage Minimum: Not Applicable
  • Wire: Copper or Aluminum (Cu/Al)
  • Amperage Maximum: 50A
  • Amperage Minimum: Not Specified
  • Nema Rating: Not Specified
  • Switch Style: Not Specified
  • Wire Size: 10 AWG to 4 AWG
  • Certification: IEC 60947-2, UL 489
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Load Side Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Any
  • Standards: IEC 60947-2, UL 489
  • Compatible Frames: Not Specified
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not Applicable
  • Breaker Frame: 125A/ED
  • Current Rating: 50A
  • Reverse Standoff Voltage: Not Applicable
  • Watts: Not Specified
  • Peak Pulse Current: Not Applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not Applicable
  • Breakdown Voltage (VBR@IT) (V): Not Applicable
  • Polarity: Not Applicable
  • Operating Temperature Maximum Celsius: 70 °C
  • Max Clamp Voltage: Not Applicable
  • On-State Current: Not Applicable


Product Identification
  • UPC: 783643209886
  • GTIN: 00783643209886