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Siemens QR23B125 - 3-Pole 125A Circuit Breaker (10kA AIC, 240V)

Siemens
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Siemens QR23B125 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial electrical systems. It features a 125A current rating and a 240V AC voltage rating, housed within a compact, durable enclosure measuring 7.087" x 4.331" x 3.937" and weighing 4.519 lb. The breaker is certified to UL, CSA, and NOM standards and utilizes a thermal-magnetic trip unit with long-time and instantaneous functions to ensure coordinated protection. Its 10kA interrupting rating at 240V and bolt-on connection make it suitable for panelboards, switchboards, and industrial control panels where robust and compliant circuit protection is required.

Key Features & Specifications
  • Type: QR2 Series Molded Case Circuit Breaker with Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Dimensions: 7.087" H x 4.331" W x 3.937" D (180mm x 110mm x 100mm)
  • Standards: UL Listed, CSA Certified, NOM Certified
  • Applications: Industrial Panelboards, Switchboards, Motor Control Centers
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3-Phase
  • Amperage: 125A
  • AIC Rating: 10kA @ 240V AC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal-Magnetic
  • Functions: Long Time Delay, Instantaneous Trip
  • Frame Size: QR2
  • Trip Type: Thermal-Magnetic
  • Mounting: Fixed
  • Certification: UL, CSA, NOM
  • Terminal Connection: Bolt-On
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA C22.2 No. 5, NOM-029-SCFI
  • Family: QR Series
  • Country of Origin: Mexico
  • Weight: 4.519 lb (2.05 kg)


Product Identification
  • UPC: 804766136634
  • GTIN: 00804766136634