Simplex 2081-9044


Overvoltage Protector

Availability: Estimated 3 - 5 Business Days

  • Factory New
Brand: Simplex Part #: 30833 Category: Manufacturer Part #: 2081-9044 Tag:


Circuit Protection. Electrical transients caused by lightning or by disturbances on high voltage power lines can cause damage to low voltage fire alarm circuits. Proper application of 2081-9044 Overvoltage Protectors can minimize the energy from those electrical transients to a level that can be safely handled by the circuits requiring protection. This protection is most effective when placed at the locations where the circuits leave and enter buildings.

The 2081-9044 Overvoltage Protector provides multiple stages of protection against electrical transients. The small package size allows it to be easily mounted at the location that achieves maximum protection.


Weight .50 lbs




Production Status



Designed specifically for protection of fire alarm circuits including:

  • DC power (200 mA maximum)
  • Data communications
  • Local energy city circuit connections
  • Rugged epoxy encapsulated package

Multiple stages of protection include:

  • Line-to-Line protection and Line-to-Earth protection

Listings Reference:

  • Listed as an Overvoltage Protector to UL 864, Control Units and Accessories for Fire Alarm Systems
  • Listed as an Overvoltage Protector to ULC-S527, Control Units for Fire Alarm Systems
  • Listed as an Isolated Loop Circuit Protector to UL 497B, Protectors for Data Communications and Fire Alarm Circuits
  • Compatible with the requirements of the National Electrical Code (NFPA 70)


Circuit Protection; Model 2081-9044 Overvoltage Protector