Circular Turning Knob Range
Technical Data | |
---|---|
Material: Aluminium with a clear protective finish |

Option #1 | |
---|---|
Clear Anodised Aluminium |
ØA | B | ØC | Ød | D | E | F | Without Indicator |
With Indicator |
---|---|---|---|---|---|---|---|---|
8 | 10 | - | 4 | 3 | - | 8 | 504.41 | 504.411 |
12 | 12 | 11 | 4 | 5 | 2.5 | 10.5 | 505.41 | 505.411 |
12 | 12 | 11 | 6 | 5 | 2.5 | 10.5 | 505.61 | 505.611 |
17 | 13 | 15 | 6 | 7.5 | 5 | 12 | 506.61 | 506.611 |
20 | 14 | 18 | 4 | 7.5 | 3.5 | 11.5 | 507.41 | 507.411 |
20 | 14 | 18 | 6 | 7.5 | 3.5 | 11.5 | 507.61 | 507.611 |
24 | 15 | 21.5 | 6 | 7.5 | 4 | 12 | 508.61 | 508.611 |
28 | 16 | 26 | 6 | 7.5 | 4 | 13 | 509.61 | 509.611 |
35 | 18 | 31 | 6 | 8 | 3.5 | 15 | 539.61 | 539.611 |
Option #2 | |
---|---|
Black Anodised Aluminium |
ØA | B | ØC | Ød | D | E | F | Without Indicator |
With Indicator |
---|---|---|---|---|---|---|---|---|
8 | 10 | - | 4 | 3 | - | 8 | 504.413 | 504.4131 |
12 | 12 | 11 | 4 | 5 | 2.5 | 10.5 | 505.413 | 505.4131 |
12 | 12 | 11 | 6 | 5 | 2.5 | 10.5 | 505.613 | 505.6131 |
17 | 13 | 15 | 6 | 7.5 | 5 | 12 | 506.613 | 506.6131 |
20 | 14 | 18 | 4 | 7.5 | 3.5 | 11.5 | 507.413 | 507.4131 |
20 | 14 | 18 | 6 | 7.5 | 3.5 | 11.5 | 507.613 | 507.6131 |
24 | 15 | 21.5 | 6 | 7.5 | 4 | 12 | 508.613 | 508.6131 |
28 | 16 | 26 | 6 | 7.5 | 4 | 13 | 509.613 | 509.6131 |
35 | 18 | 31 | 6 | 8 | 3.5 | 15 | 539.613 | 539.6131 |


Option #1 | |
---|---|
Aluminium Knob Without Collar |
Option #2 | |
---|---|
Aluminium Knob With Collar |

Technical Data | |
---|---|
Material: Aluminium with a protective finish |


Technical Data | |
---|---|
Knob: Anodised Aluminium with black plastic top button | Collar: Transparent Thermoplastic with black indicator line |
Part No |
---|
538.621 |

LED Ring Lighting & Custom LED Knobs
LED RING LIGHTING FOR KNOBS
![]() |
Using MENTOR’s Standard LED Ring Lighting products, a lighting effect of a ring of light surrounding the knob can be achieved. Custom LED shapes are also possible. |
![]() |
Using MENTOR’s Standard LED Ring Lighting products, a lighting effect of a ring of light appearing from below the knob can be achieved. Custom LED shapes are also possible. |
![]() |
Custom LED shapes are possible. |
Knobs with Integrated LED Indicators
The image above demonstrates a new knob concept developed by MENTOR - Knobs with Integrated LED Indicators.
Utilising MENTOR's integrated lighting expertise, many different innovative options are possible - allow your design ideas to flourish! Contact Multitron for a free consultation to discuss your ideas.