DIN EN 13126-3 (Classification Key)
1st digit: Category of use
(corresponding to the main test parameter)
Grade 1
| Click torque before and after durability testing | Between-clicks torque M0 ≤ 1,4 Nm |
Click-out torque Ma ≤ 6,0 Nm |
Difference Md ≥ 0,4 Nm |
| Free play perpendicular or parallel to the mounting plane | Δ ≤ 6 mm | ||
| Torsional strength 200 N / 85 mm / 30 s |
Permissible deformation Δ ≤ 5 mm | ||
| Tensile strength of spindle connection | F ≥ 100 N | ||
| Eccentric tensile strength | F = 600 N | ||
Grade 2
| Click torque before and after durability testing | Between-clicks torque M0 ≤ 0,8 Nm |
Click-out torque Ma ≤ 4,0 Nm |
Difference Md ≥ 0,8 Nm |
| Free play perpendicular or parallel to the mounting plane | Δ ≤ 4 mm | ||
| Torsional strength 200 N / 85 mm / 30 s |
Permissible deformation Δ ≤ 2 mm | ||
| Tensile strength of spindle connection | F ≥ 100 N | ||
| Eccentric tensile strength | F = 1 200 N | ||
2nd digit: Durability
Grade 3/90 |
10.000 turn-only cycles |
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| Grade 4/90 | 15.000 turn-only cycles | ||
| Grade 5/90 | 25.000 turn-only cycles | ||
| Grade 3/180 | 10.000 tilt and turn cycles | ||
| Grade 4/180 | 15.000 tilt and turn cycles | ||
| Grade 5/180 | 25.000 tilt and turn cycles | ||
3rd digit: Mass
No requirement accoring to the main section of EN 13126-1
4th digit: Fire resistance
No requirement accoring to the main section of EN 13126-1
5th digit: Safety in use
Grade 1 in accordance with main section of EN 13126-1
6th digit: Corrosion resistance
Minimum grade 2 of EN 1670, in accordance with main section of EN 13126-1
7th digit: Security
(in accordance with additional test parameters)
| Grade 0 |
Without security |
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| Grade 1 | 35 Nm Nm resistance against twisting-off and forcing-off | ||
| Grade 2 | 100 Nm Nm resistance against twisting-off and forcing-off | ||
| Grade 3 | 200 Nm Nm resistance against twisting-off and forcing-off | ||
| Extension 0 | No locking mechanism | ||
| Extension 1 | Non-keyed locking mechanism | ||
| Extension 2 | Keyed locking mechanism with ≤ 99 locking varieties | ||
| Extension 3 | Keyed locking mechanism with ≥ 100 locking varieties | ||
This results in the following possible combinations for the 7th digit:
| 0/0 |
Without security / without locking mechanism |
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| 1/1 | 35 Nm Nm resistance against twisting-off and forcing-off / nonkeyed locking mechanism |
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| 1/2 | 35 Nm Nm resistance against twisting-off and forcing-off / keyed locking mechanism with ≤ 99 locking variations |
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| 1/3 | 35 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with minimum 100 locking variations |
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| 2/1 | 100 Nm Nm resistance against twisting-off and forcing-off / nonkeyed locking mechanism |
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| 2/2 | 100 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with ≤ 99 locking variations |
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| 2/3 | 100 Nm Nm resistance against twisting-off and forcing-off / keyed locking mechanism with minimum 100 locking variations |
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| 3/1 | 200 Nm Nm resistance against twisting-off and forcing-off / nonkeyed locking mechanism |
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| 3/2 | 200 Nm 200 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with ≤ 99 locking variations |
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| 3/3 | 200 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with minimum 100 locking variations |
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8th digit: Application
Applicable part of this European standard: Grade 3
| Application N |
No click function |
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| Application C | Click function | ||
| Type 1 | Window handle | ||
| Type 2 | Geared window handle | ||
This results in the following possible combinations for the 8th digit:
| 3/N1 |
Part 3 / no click function / window handle |
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| 3/N2 | Part 3 / no click function / geared window handle | ||
| 3/C1 | Part 3 / with click function / window handle | ||
| 3C/2 | Part 3 / with click function / geared window handle | ||
9th digit: Test size
No requirement
Example:
| Category of use |
2 |
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| Durability | 3/180 | ||
| Mass | – | ||
| Fire resistance | 0 | ||
| Safety in use | 1 | ||
| Corrosion resistance | 2 | ||
| Security | 3/3 | ||
| Application | 3/C1 | ||
| Test size | – | ||
Explanation:
| 1st digit: | Handle with category of use grade 2 |
| 2nd digit: | Tested with 10,000 tilt and turn cycles |
| 3rd digit: | No requirements for window mass (not requested) |
| 4th digit: | No requirements for fire resistance (not requested) |
| 5th digit: | Safety in use grade 1 (only provided as such) |
| 6th digit: | Corrosion resistance grade 2 according to DIN EN 1670 (corresponding to 48 h in neutral salt spray test) |
| 7th digit: | 200 Nm resistance against twisting-off and forcing off and a keyed locking mechanism with at least 100 locking variations |
| 8th digit: | Application as window handle with click mechanism |
| 9th digit: | No requirements for window test size (not requested) |
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