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Hellberg Secure 3N

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    • For use in high noise level environments
    • Best choice in low frequency dominated noise

    The SECURE neckband style earmuff offers great versatility to the user. A perfect solution when you need hearing protection in conjunction with bump caps, helmets without attachment slots or head mounted face protection. The strong and flexible neckband balances the weight over the neck, keeping an even and comfortable pressure over the ears. “Snap-in” ear cushions with minimal sweat retention and soft foam filling increases the high comfort and are easily replaced, for a fresh long-lived product.

  • Soft cushions maintains a high level of comfort protection
  • The soft Velcro headband fits any head size and keeps an even pressure over head
  • Color coding for easy selection and identification
  • Fully compatible with Hellberg’s SAFE™ Visor System

Technical specifications

Part no: 43003-001
Style: Neckband
Weight: 240 g
Unit pack: Box
Masterbox qty: 20
SNR: 33
NRR: 27
SLC (80): 31
Applications:                    Airport ground crew, Motor racing, Drill hammering etc
SECURE 3N, EN 352, H-35 M-31 L-22 SNR-33
Freq.Hz 63 125 250 500 1000 2000 3150 4000 6300 8000
Mean.att. 18,1 18,7 25,2 32,2 42,6 36,1   38,9   38,0
St.dev. 5,8 4,3 2,7 3,1 4,1 2,7   3,4   4,5
APV 12,3 14,4 22,5 29,1 38,5 33,4   35,5   33,5
S3N                    
SECURE 3N, ANSI S-3.19-1974, NRR 27 CSA A
Freq.Hz 63 125 250 500 1000 2000 3150 4000 6300 8000
Mean.att.   18,9 22,8 32,2 41,8 36,8 35,9 37,6 39,4 38,3
St.dev.   2,9 2,2 2,2 2,7 2,7 2,3 2,4 2,8 3,2
S3N                    
SECURE 3N, AS/NZS 1270:2002, SLC(80)-31 dB Class 5
Freq.Hz 63 125 250 500 1000 2000 3150 4000 6300 8000
Mean.att.   19,2 24,5 31,1 36,9 33,2   39,0   40,1
St.dev.   3,0 2,4 2,7 2,8 4,2   4,1   4,4
Mean-std   16,2 22,2 28,4 34,1 29,0   34,9   35,7

 

 
 
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