EN 1303
Building hardware - cylinders for locks
UNION products applicable: DTEC cylinders
GUIDE TO CLASSIFICATION
EN 1303 classifies cylinders using an 8 digit coding system.
Each digit refers to a particular feature of the product measured against the standard's performance requirements.
Digit 1 - Category of use
- grade 1: for use by people with a high incentive to exercise care and with a small chance of misuse
Digit 2 - Durability
- grade 4: 25 000 cycles.
- grade 5: 50 000 cycles.
- grade 6: 100 000 cycles.
Digit 3 - Door mass
- grade 0: No requirement.
Digit 4 - Fire resistance
- grade 0: not approved for use on fire/smoke resisting door assemblies
- grade 1: suitable for use on fire/smoke resisting assemblies, subject to satisfactory assessment
Digit 5 - Safety
- grade 0: no requirement.
Digit 6 - Corrosion resistance
- grade 0: No requirement.
- grade A: high corrosion resistance; no temperature requirement
- grade B: no corrosion requirement; temperature requirement from -20°C to +80°C
- grade C: high corrosion resistance; temperature requirement from -20°C to +80°C
Digit 7 - Key related security
Six grades of key related security in accordance with the table below:
Grade | ||||||
1 | 2 | 3 | 4 | 5 | 6 | |
Minimum number of effective differs | 100 | 300 | 15000 | 30000 | 30000 | 100000 |
Minimum number of movable levers, pins, discs, etc | 2 | 3 | 5 | 5 | 6 | 6 |
Coding on key could disclose combination | Yes | Yes | No | No | No | No |
Torque resistance of plug | 2.5Nm | 5Nm | 15Nm | 15Nm | 15Nm | 15Nm |
Digit 8 - Attack resistance
Three grades are identified and the principal requirements are summarised in the table below:
Grade | |||
0 | 1 | 2 | |
Resistance to drilling (nett drilling time) | – | 3 mins | 5 mins |
Resistance to chisel attack (number of blows) | – | 30 | 40 |
Resistance to twisting attack (number of defined twists) | – | 20 | 30 |
Resistance to plug/cylinder extraction (pull load) | – | 15 kN | 15 kN |
Torque resistance of plug/cylinder | – | 20 Nm | 30 Nm |
EXAMPLE
The following marking denotes a cylinder meeting the required category of use Grade 1, durability Grade 6 (100 000 cycles), no requirement for door mass, no fire resistance or safety in use requirement, having Grade A corrosion resistance, Grade 4 key related security and Grade 1 attack resistance.
| 1 | 6 | - | 0 | - | A | 4 | 1 |