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Siemens 3VA9978-0AB23 - Bell Alarm for 3VA6 Breakers

Siemens
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Siemens 3VA9978-0AB23 is a SENTRON electrical alarm switch accessory with changeover contacts designed for use with 3VA6 molded case circuit breakers, providing reliable status indication for industrial power distribution systems. This accessory operates at 24 V AC/DC with a thermal current rating of 0.3 A and a surge voltage resistance of 4 kV, featuring HQ-type contacts (7mm wide) for electronic compatibility. The unit weighs 5 lb and is rated for an ambient temperature range of -13°F to -158°F (-25°C to 70°C), with a degree of pollution 3 and overvoltage category III. It is UL Listed and certified, meeting rigorous safety and performance standards for industrial environments. Typical applications include alarm signaling and remote monitoring in switchgear, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Bell Alarm
  • Family: Sentron Series
  • Design: Accessories for 3VA circuit breakers
  • Contact type: Changeover contacts HQ (7mm), electronic-compatible
  • Compatible with: 3VA6
  • Surge voltage resistance: 4 kV
  • Operating voltage AC/DC (CSA/UL): 24 V
  • Thermal current: 0.3 A
  • Degree of pollution: 3
  • Overvoltage category: III
  • Standards: UL Listed
  • Certification: UL Listed
  • Temp Rating: -13°F-158°F (-25°C-70°C)
  • Weight: 5 lb


Product Identification
  • UPC: 80476632337
  • GTIN: 00804766323379