assaabloy.com 533 Cylinders Legislation EN 1303 classification key Grading scope EN 1303:2015 Attack resistance rating Grade 0 Grade A Grade B Grade C Grade D Drilling attack (minutes) - 3/5 5/10 3/5 5/10 Chisel attack (blows) - 30 40 30 40 Twisting attack (twists) - 20 30 20 30 Plug extraction, force – Net/total kN/mins - - - 10 5/10 15 5/15 Torque resistance (Nm) - 20 30 20 30 Security rating Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 Grade 6 Minimum number of effective differs 100 300 15,000 30,000 30,000 100,000 Minimum number of movable detainers 2 3 5 5 6 6 Maximum number of identical steps 100 70 60 60 60 50 Direct coding on key* - - No No No No Operation of security mechanism (Nm) 1.5 1.5 1.5 1.5 1.5 1.5 Torque resistance of cylinder/plug (Nm) 2.5 5 15 15 15 15 Key related security Attack resistance FIRE BEHAVIOUR AND RESISTANCE Grade 0: not approved for use on fire resistant / smoke control door assemblies Grade A: suitable for use on smoke control door assemblies Grade B: suitable for use on fire resistant and smoke control doors (0/A/B) SAFETY No requirement. (0) CATEGORY OF USE For use by people who will generally exercise care when using the products, with a small chance of misuse. Grade 1: Keys shall resist a torque of 2.5Nm, and still be usable (1) DOOR MASS No requirement. (0) Legislation EN 1303 – Cylinders Cylinders are rated according to the British and European standard EN 1303. EN 1303:2015 classifies cylinders for locks using an 8 digit coding system. Each digit refers to a particular feature of the product measured against the standard’s performance requirements. (4/5/6) DURABILITY Tests the durability of the product through various cycle tests. Grade 4: 25,000 test cycles Grade 5: 50,000 test cycles Grade 6: 100,000 test cycles KEY RELATED SECURITY (see table opposite) Six grades are identified. (1-6) (0/A/B/C) CORROSION RESISTANCE Corrosion resistance to EN 1670 Neutral Salt Spray test and operation of the product at extreme temperatures. On completion of the test, the cylinder must operate using a maximum 1.5Nm torque on the key. Grade 0: no corrosion requirement; no temperature requirement Grade A: high corrosion resistance; no temperature requirement Grade B: no corrosion requirement; temperature requirement: from – 25 °C to + 65 °C Grade C: high corrosion resistance; temperature requirement: from – 25 °C to + 65 °C *Direct Coding on a key is a marking on the key that allows the key steps to be determined without reference to another data source. Direct key coding is not permitted on keys for the key related security grades 3 to 6 as specified above. ATTACK RESISTANCE (see table opposite) Five grades of resistance against drilling and mechanical attack are identified in accordance. (0/A/B/C/D)
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