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Square D 999370 - Molded Case 70A 3-Pole Breaker

Square D
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The Square D 999370 is a 3-pole molded case circuit breaker from the 99 Series, designed to provide overcurrent protection through a thermal magnetic mechanism. It is rated for 70A at 600V AC with a 10kA interrupting capacity at 600V, utilizing LI (Long-Time and Instantaneous) trip functions for precise fault response. This bolt-on unit weighs 8 lb and features a compact, robust construction suitable for industrial panelboards. It complies with applicable industry standards for safety and performance in three-phase power distribution systems. Typical applications include protecting branch circuits in commercial and industrial electrical panels where reliable thermal magnetic protection is required.

Key Features & Specifications
  • Type: Molded Case
  • Voltage Rating: 600V
  • Current Rating: 70A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@600V
  • Functions: LI - Long-Time and Instantaneous
  • Family: 99 Series
  • Weight: 8 lb


Product Identification
  • UPC: 782451045334