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Siemens JJ3-B250 - Molded Case Circuit Breaker 250A 600V

Siemens
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Siemens JJ3-B250 is a molded case circuit breaker designed for overcurrent protection in industrial electrical distribution systems. It is rated for 250 amps of trip current and 600 VAC, with a 3-pole configuration and a thermal magnetic trip unit for reliable short-circuit and overload protection. This breaker features a fixed, non-interchangeable trip within the JJ frame series (200-400 amp max frame rating), weighs 15 lb, and uses bolt-on mounting for secure panel installation. It is built to meet industry standards for commercial and industrial power distribution applications. Typical uses include protecting branch circuits, feeders, and equipment in manufacturing plants, commercial buildings, and heavy industrial environments.

Key Features & Specifications
  • Manufacturer: Siemens
  • Item Subcategory: Molded Case
  • Weight: 15 lb
  • Amperage Rating: 250 Amps Trip
  • Voltage Rating: 600 VAC
  • Number of Poles: 3
  • Frame/Series: JJ Frame (200-400 Amp)
  • Trip Unit: Thermal Magnetic
  • Mounting Type: Bolt-On
  • Non-Interchangeable Fixed Trip
  • Application: Industrial Electrical Distribution