Think so too just a delay function. It's strange that I can hear the relay clicking but it stays open.
I'm at my inlaws but forgot to take the power cord.
Perceived this on Sunday when I got clean sound bridging the relay. 21 to 22 was closed when power was off but 11 to 12 did not close at power on. Should have measured if 21 to 22 opened at power on but was to much in a hurry.
There shurly must be a (Kaltgerätestecker) somewhere in the house.
If I don't find one I will do what you would not even dare to think about 🫣
Perceived this on Sunday when I got clean sound bridging the relay. 21 to 22 was closed when power was off but 11 to 12 did not close at power on. Should have measured if 21 to 22 opened at power on but was to much in a hurry.
There shurly must be a (Kaltgerätestecker) somewhere in the house.
If I don't find one I will do what you would not even dare to think about 🫣
And let me explain and also vent some utter frustration.
A few years ago when you lived in Europe you main;y had to deal with C13/C14 on the equipment side, and the "German" plug on the other side. Double insulated consumer equipment often used C7/C8 without PE.
Now I live in a country where we have 127/220V mains. 220V outlets are EU (German type) and 127V outlets are USA type (Nema 5-15, the two vertical slots). So for years I have been carrying around a basket full of C14 cords, with both EU and USA plugs. Dependent on what the customer had for outlets near their desks. Computer equipment is mostly 95-260V except for laser printers.
Then came the dreaded C5/C6 socket in use for notebook and some monitor power supplies. For no good reason IMHO. Now I have to carry around not 2 types of cords, but 4 types. C14-EU, C14-USA, C6-EU, C6-USA. Every technician can acknowledge that exactly the type you need is depleted at that moment. Fine, **** happens and we are being lived by Big Tech. Not just on the data side but also on hardware.
And then one day I picked up this Cisco switch. And my C14 cord would not fit. No, Cisco decided to put a 20 Amp rated C16 socket into a 8-ports POE switch with a rating of 135 Watt consumed power. Yeah, you bet is was dearly needed for such a huge power consumption and current draw to put in a 20 Amp socket incompatible with C14 sockets. Sure I have some heavy power cords available used in HP and Compaq servers rated at 2x800W consumption. But THOSE had ordinary C14 connectors of course.
Eventually I picked up the Cisco power cable to make the final installation. But no way I am going to carry a third variant in my stock C16-EU and C16-USA. Therefor sometimes I have to revert to a totally universal socket connection.
A few years ago when you lived in Europe you main;y had to deal with C13/C14 on the equipment side, and the "German" plug on the other side. Double insulated consumer equipment often used C7/C8 without PE.
Now I live in a country where we have 127/220V mains. 220V outlets are EU (German type) and 127V outlets are USA type (Nema 5-15, the two vertical slots). So for years I have been carrying around a basket full of C14 cords, with both EU and USA plugs. Dependent on what the customer had for outlets near their desks. Computer equipment is mostly 95-260V except for laser printers.
Then came the dreaded C5/C6 socket in use for notebook and some monitor power supplies. For no good reason IMHO. Now I have to carry around not 2 types of cords, but 4 types. C14-EU, C14-USA, C6-EU, C6-USA. Every technician can acknowledge that exactly the type you need is depleted at that moment. Fine, **** happens and we are being lived by Big Tech. Not just on the data side but also on hardware.
And then one day I picked up this Cisco switch. And my C14 cord would not fit. No, Cisco decided to put a 20 Amp rated C16 socket into a 8-ports POE switch with a rating of 135 Watt consumed power. Yeah, you bet is was dearly needed for such a huge power consumption and current draw to put in a 20 Amp socket incompatible with C14 sockets. Sure I have some heavy power cords available used in HP and Compaq servers rated at 2x800W consumption. But THOSE had ordinary C14 connectors of course.
Eventually I picked up the Cisco power cable to make the final installation. But no way I am going to carry a third variant in my stock C16-EU and C16-USA. Therefor sometimes I have to revert to a totally universal socket connection.
The world would benefit from a definite choice for C13/C14 as far as consumer stuff is concerned. A bit like the decision to only allow USB-C on smart phones in the EU.
What country is that? Both 127V with those beautiful NEMA and 220V with Schuko sounds both intriguing and challenging. Higher voltage with NEMA than in the US and lower voltage than usual with Schuko. I can imagine the practical difficulties as I have experience with non synchronised mains grids. Add different voltages to that and a good mix for possible incidents is born.
What country is that? Both 127V with those beautiful NEMA and 220V with Schuko sounds both intriguing and challenging. Higher voltage with NEMA than in the US and lower voltage than usual with Schuko. I can imagine the practical difficulties as I have experience with non synchronised mains grids. Add different voltages to that and a good mix for possible incidents is born.
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Bonaire, Dutch Caribbean. Curacao and Jamaica are two of the few others who have this standard. Aruba and the Windward islands have a proper 110V/60Hz. The 127/220V 50 Hz is from historical reasons but turned out quite bad.
The Leeward Caribbean islands are a former Dutch colony. After WW II 127/220V was not uncommon in the Netherlands. I recall that Rotterdam and The Hague had this until the 1960-ies. So when electrification became widespread on these islands they opted also for 127/220V. The 127V being standard. As all floors are tiles in the homes they considered it less risky than 220V. In those days PE was not standard, let alone Earth leakage protection breakers. Often the outlets were EU types without PE.
Then when the need for higher power outlets arose (that is air conditioners), more and more homes got a full three phase 127/220V connection to the grid. A 220V outlet is mostly EU with PE, the "German type". Although USA type with horizontal slots and PE is used as well.
To lessen the chance to put a 127V device in a 220V outlet gradually the 127V outlets in the homes were replaced by USA NEMA types. That was end of the 1960-ies, and 1970-ies.
Now the problem is that the plug is compatible with USA devices, but 127V/50Hz is far from compatible with 110V/60Hz. Although the difference might seem small. For refrigerators and TVs people were so smart to install a 127-110V transformer. Which usually was sufficient to prevent the device to burn out. By the design standards of the previous century equipment was designed with sufficient overdimensioning so it could handle 110V/50Hz instead of 110V/60Hz.
Until the Indian and Chinese products came onto the market. That equipment was designed so cheaply everything was rather under dimensioned even when used on 110V/60Hz. I mean, if it survives the first year so the warranty has expired the goal is met. People did not traditionally use transformers for small devices like electric drills, fans, battery chargers, radios and so on. With the result most of the equipment simply burned out. It could be even as bad that if the mains voltage rose a few volts because of lesser demand a previously working device would fail at that moment.
Now multi-voltage SMPS become the norm more and more the problem has diminished. But you don't want to know how many devices ended in the trash can.
In Europe in the 1970-ies single phase 220V became the standard, but the UK still had single phase 240V. To harmonize that, they set the standard eventually to 230V/50Hz for all of Europe. Which was still within the tolerance of both 220 and 240V. Three phase became 230/400V instead of 220/380V. And 133/230V does not exist as far as I know.
On Bonaire and Curacao it is nowadays possible to apply for a 220/380V connection. And the trend is moving slowly towards single phase 220V in the homes. Now PE and earth leakage breakers are mandatory. But it will not become 230V anytime soon so as not to loose compatibility with 127/220V.
The Leeward Caribbean islands are a former Dutch colony. After WW II 127/220V was not uncommon in the Netherlands. I recall that Rotterdam and The Hague had this until the 1960-ies. So when electrification became widespread on these islands they opted also for 127/220V. The 127V being standard. As all floors are tiles in the homes they considered it less risky than 220V. In those days PE was not standard, let alone Earth leakage protection breakers. Often the outlets were EU types without PE.
Then when the need for higher power outlets arose (that is air conditioners), more and more homes got a full three phase 127/220V connection to the grid. A 220V outlet is mostly EU with PE, the "German type". Although USA type with horizontal slots and PE is used as well.
To lessen the chance to put a 127V device in a 220V outlet gradually the 127V outlets in the homes were replaced by USA NEMA types. That was end of the 1960-ies, and 1970-ies.
Now the problem is that the plug is compatible with USA devices, but 127V/50Hz is far from compatible with 110V/60Hz. Although the difference might seem small. For refrigerators and TVs people were so smart to install a 127-110V transformer. Which usually was sufficient to prevent the device to burn out. By the design standards of the previous century equipment was designed with sufficient overdimensioning so it could handle 110V/50Hz instead of 110V/60Hz.
Until the Indian and Chinese products came onto the market. That equipment was designed so cheaply everything was rather under dimensioned even when used on 110V/60Hz. I mean, if it survives the first year so the warranty has expired the goal is met. People did not traditionally use transformers for small devices like electric drills, fans, battery chargers, radios and so on. With the result most of the equipment simply burned out. It could be even as bad that if the mains voltage rose a few volts because of lesser demand a previously working device would fail at that moment.
Now multi-voltage SMPS become the norm more and more the problem has diminished. But you don't want to know how many devices ended in the trash can.
In Europe in the 1970-ies single phase 220V became the standard, but the UK still had single phase 240V. To harmonize that, they set the standard eventually to 230V/50Hz for all of Europe. Which was still within the tolerance of both 220 and 240V. Three phase became 230/400V instead of 220/380V. And 133/230V does not exist as far as I know.
On Bonaire and Curacao it is nowadays possible to apply for a 220/380V connection. And the trend is moving slowly towards single phase 220V in the homes. Now PE and earth leakage breakers are mandatory. But it will not become 230V anytime soon so as not to loose compatibility with 127/220V.
Sounds like organised chaos 😉
From power generation and distribution point of view it of course makes sense to settle on the highest voltage of the two.
From power generation and distribution point of view it of course makes sense to settle on the highest voltage of the two.
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Since it's only a delay and not a fault switch I might leave it bridged until I got a bit more time.
Already noticed the possible µPC1237 but OP is in a hurry.
I think even "upc" is written left of the IC. Of course the defect was no coincidence, it was the µPC1237 taking action because of a self caused problem.
https://ampslab.com/PDF/upc1237.pdf
I think even "upc" is written left of the IC. Of course the defect was no coincidence, it was the µPC1237 taking action because of a self caused problem.
https://ampslab.com/PDF/upc1237.pdf
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