There are rocker switches that have two separate rockers side by side, left and right. To my knowledge, these are also available as toggle switches, meaning you don’t have to keep pressing them continuously; you can just switch once, and the roller shutter will go down automatically.
Then there are switches where you tap the top or bottom. As far as I know, here too you can let the shutter go fully up or down without holding the button constantly.
Examples:
a) Busch & Jäger 1785-84
b) Busch & Jäger 6430-214-102
Each of these control elements requires a different type of flush-mounted box, and option b) is significantly more expensive.
Why is that, and what is the difference? Why can’t you just fit switch b) onto the flush-mounted element for option a)?
Then there are switches where you tap the top or bottom. As far as I know, here too you can let the shutter go fully up or down without holding the button constantly.
Examples:
a) Busch & Jäger 1785-84
b) Busch & Jäger 6430-214-102
Each of these control elements requires a different type of flush-mounted box, and option b) is significantly more expensive.
Why is that, and what is the difference? Why can’t you just fit switch b) onto the flush-mounted element for option a)?
b) are two ordinary push buttons that conduct electricity when pressed. a) are electronic components that, when combined with other parts, enable more complex controls. For b), it depends on whether they are push buttons or switches; the difference here is purely mechanical.
It's like comparing apples and oranges...
It's like comparing apples and oranges...
The other way around, right?
b) is the more expensive model, which can also be replaced with timers, etc., and a) are the switches that are basically two-position on/off switches.
Now, to clarify: With the simple model, when I press the right switch, the left switch remains off (pressed in at the bottom, popped out at the top), and the right switch is on (popped out at the top, pressed in at the bottom).
What happens when the roller shutter has finished closing? Does the switch spring back? Or if it doesn’t spring back, is that a problem? Does the motor know that once it’s fully down, it’s finished and that the switch is pressed and locked in the down position isn’t an issue, or does the motor continue to push “against the window sill” downwards?
b) is the more expensive model, which can also be replaced with timers, etc., and a) are the switches that are basically two-position on/off switches.
Now, to clarify: With the simple model, when I press the right switch, the left switch remains off (pressed in at the bottom, popped out at the top), and the right switch is on (popped out at the top, pressed in at the bottom).
What happens when the roller shutter has finished closing? Does the switch spring back? Or if it doesn’t spring back, is that a problem? Does the motor know that once it’s fully down, it’s finished and that the switch is pressed and locked in the down position isn’t an issue, or does the motor continue to push “against the window sill” downwards?
I think I mixed up a) and b) 😉.
There are double push-buttons/switches and roller shutter push-buttons/switches. The latter mechanically block each other, so you can only press/switch one at a time. <-- This is important!
Both are connected either to the up or down phase.
When the movement is finished, what happens depends on the motor. The switch cannot return automatically—how would the motor signal that? That means the circuit remains closed. Now the motor must either automatically switch off upon reaching the end position or detect the end position independently (which ours do, for example). It still receives power, but the motor itself is off.
Grym schrieb:
Now, to clarify: With the simple model, when I press the right switch, the left switch stays in the off position (top pressed down, bottom sticking out) and the right switch is on (top sticking out, bottom pressed down).
There are double push-buttons/switches and roller shutter push-buttons/switches. The latter mechanically block each other, so you can only press/switch one at a time. <-- This is important!
Both are connected either to the up or down phase.
When the movement is finished, what happens depends on the motor. The switch cannot return automatically—how would the motor signal that? That means the circuit remains closed. Now the motor must either automatically switch off upon reaching the end position or detect the end position independently (which ours do, for example). It still receives power, but the motor itself is off.
S
Sebastian7931 Aug 2016 13:00I have option b) from GIRA and once option a) in the basement – option b) is simply nicer, especially since it also offers possibilities to integrate it into a (central) control system. Additionally, depending on the design, these units can have memory functions.
I have it on the ground floor, which remembers (if desired) when the blinds are lowered or raised and repeats this at the same time the next time. So, it’s a simple logic – but it’s convenient.
I have it on the ground floor, which remembers (if desired) when the blinds are lowered or raised and repeats this at the same time the next time. So, it’s a simple logic – but it’s convenient.
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