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Exchan-ge2021-07-23 16:39:43
Iron
Exchan-ge, 2021-07-23 16:39:43

How can I replace the mains filter switch (extension cord)?

Several computer devices are connected to one point (socket block).
For ease of control, they are supplied with voltage by one switch located on the "impulse noise filter" (it is difficult for users to use several switches, they do not remember)
The total consumption is quite acceptable, but at the moment of switching on, the current briefly reaches a peak value, which leads to the failure of the switch (it doesn’t turn off anymore :)
The RCD and the automata in the shield do not work, the laser printers (two, normal and color) are turned off at this moment, but it has been experimentally established that the reason is precisely in them.

Question: are there, in principle, a device in a desktop version, performing the function of a knife switch, powerful enough and reliable - and at the same time having an "office" (and not industrial) look?
(possible with a big red button :)

Updated : such monsters of filtering as Belkin BSV804vf2M (3680 W 16 amps)
and (alternatively) 2E U02ESPM3, EnerGenie SPG5-C-5, REAL-EL RS-6 Protect (3500 W ) were found for sale 16 amps)

Belkin looks very nice, but expensive. Has anyone dealt with such devices (compliance with the declared and real power)?

The reason was also found - the recently connected HP 3015 nominally consumes 800 watts, the printer that stood before - only 400.

Note. impulse noise filters were used both purely "Chinese" and ARS, the result is the same.
It turned out to be impossible to teach users to turn on printers using their regular switches located at the back of the device cases; at most, people are able to press the round button on the front panel.

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5 answer(s)
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pfg21, 2021-07-23
@Exchan-ge

screw a DIN-rail switch next to the filter. they are stamped in millions of pieces and therefore the price is cheap, but at the same time it is quite a working long-playing switch.
remove or block the switch from the filter.
let him turn it off - if a person wedges, then it's easier to "bypass" the wedge.

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Armenian Radio, 2021-07-23
@gbg

Another Modest Matveyevich
Alas, but the disconnection of such currents under load is already the lot of industrial devices.
Well, it is important to understand that a laser printer can consume a couple of kilowatts - it is forbidden to include it in a surge protector - exceed the power.
Therefore, you will need to teach the aunts to pull the machine gun in the shield.
Or build a classic design of buttons (any fantasy is possible here, strong current does not flow through them. If you have cable channels, buy a couple of Le Grand buttons without fixing) and a contactor that can be put either in a shield or in a box.
Aunts will click on the buttons, the buttons will control the contactor, the contactor will already pull the devices for you.

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Drno, 2021-07-23
@Drno

Why turn them off at all? Oo

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RTFM13, 2021-07-23
@RTFM13

1. Screw a plastic case for 1-2 machines to the wall next to the socket and a socket next to it. Turn off this machine.
2. Case as in item 1 but without a socket and from it a direct 4-wire cable to the surge protector. Install a powerful relay of 25A or more in a DIN rail enclosure. The key to turn on the relay. Then from the user's point of view it will look like before (if they are completely tight).

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