SNB seriesProtection range, 0-8000mm;SpecificationSNBxx20 (xx=06, 08, 10, 12,40)SNBxx30 (xx=06, 08, 10, 12,40)SNBxx40 (xx=04, 06, 08, 10,40)SNBxx80 (xx=02, 04, 06, 08,40)Light axis pitch20mm, 30mm, 40mm, and 80mmProtection heightHeight=(xx-1)×light axis pitchSNBxx20...