are brand-name products, which, in our view, are equivalent to a quality promise. Read through the next few pages to see what distinguishes our branded architectural fittings and the advantages they have to offer.
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 |
| 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 according to the main section of EN 13126-1
4th digit: Fire resistance
No requirement according 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 |
| Grade 1 | 35 Nm resistance against twisting-off and forcing-off |
| Grade 2 | 100 Nm resistance against twisting-off and forcing-off |
| Grade 3 | 200 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 | |||
| 1/1 | 35 Nm resistance against twisting-off and forcing-off / nonkeyed locking mechanism | |||
| 1/2 | 35 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with ≤ 99 locking variations | |||
| 1/3 | 35 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with minimum 100 locking variations | |||
| 2/1 | 100 Nm resistance against twisting-off and forcing-off / nonkeyed locking mechanism | |||
| 2/2 | 100 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with ≤ 99 locking variations | |||
| 2/3 | 100 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with minimum 100 locking variations | |||
| 3/1 | 200 Nm resistance against twisting-off and forcing-off / nonkeyed locking mechanism | |||
| 3/2 | 200 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with ≤ 99 locking variations | |||
| 3/3 | 200 Nm resistance against twisting-off and forcing-off / keyed locking mechanism with minimum 100 locking variations | |||
8th digit: Application
Applicable part of this European standard: Grade 3
| Application N | No click function |
| 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 |
| 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 |
| 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) |