UL752 - UL 752

Underwriters Laboratories Inc.

Underwriters Laboratories UL 752 is a widely-used North American standard for bullet-resisting equipment, defining eight distinct protection levels. Originally developed for fixed installations like bank teller windows, UL 752 is now commonly applied to vehicle armoring as well.

UL 752 provides a practical framework for ballistic protection specification:

Protection Levels:


  • Level 1: 9mm FMJ (3 shots)

  • Level 2: .357 Magnum (3 shots)

  • Level 3: .44 Magnum (3 shots)

  • Level 4: .30 Caliber Rifle (1 shot)

  • Level 5: 7.62mm Rifle (1 shot)

  • Level 6: 9mm (5 shots)

  • Level 7: 5.56mm Rifle (5 shots)

  • Level 8: 7.62mm Rifle (5 shots)

Key Differences from NIJ:


  • Shot count requirements vary by level

  • Some levels specify multi-hit capability

  • Testing at specific distances (15 feet for most levels)

  • Material thickness not specified - performance-based

UL 752 certification is particularly valued by insurance companies and corporate security departments due to Underwriters Laboratories' reputation.

Details
  • Issuing Body: Underwriters Laboratories Inc.
  • Country: United States