Search results for query: %2A

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  1. mainline

    A MYSTERY? 24VDC blowing fuses

    What are the motors you are using ? specs ?
  2. D

    A MYSTERY? 24VDC blowing fuses

    As the title suggests; I have a fuse that is blowing on a 24VDC circuit. I was worried I had damaged the servo motors as they cost a bomb. the motors, I connect and disconnect at the BNC point on the diagram. I plugged them in and it was blowing fuses. I tried 1a 2a 4a (4 amp is ample). I...
  3. K

    Help choosing power adaptor

    Thank you. I haven't been able to find one with a 5521 tip on Amazon or eBay. If I have to go to the aliexpress link I sent, it sounds like the nearest I could get to what you are saying is output 2A and voltage 24V. Would that do the job?
  4. K

    Help choosing power adaptor

    Anyone here willing to help an idiot? I bought an AllPowers portable power station and managed to lose the power adaptor. AllPowers are unable to supply a replacement and I have found one here: https://www.aliexpress.com/item/1005006449547770.html#nav-specification The replacement is offered...
  5. w0z

    Can I use three pin plug 240V mains to supply DIN rail transformer?

    As long as you fix the transformer into an enclosure (later edit a non conductive enclosure) which fingers can't access and the mains cable can't be pulled out (a cable wrap around the cable on the inside of the hole (or gland) the mains cable passes through is usually adequate) it will be fine...
  6. I

    Fire Damper Actuators

    Hello Been advised by the manufacturer that a standard 24v 2A LED driver would suffice. They said no need to comply with EN54-4 as their equipment is for “passive fire protection” rather than “fire alarms”. Thoughts?
  7. Rockingit

    USA Designing an Electrical Power System for a rack

    AVR's and Generators in a rack??? And only at 7.5kW?? What are you actually trying to build?
  8. Miguel Esteban-Perez

    USA Designing an Electrical Power System for a rack

    I´d work for AMis companies here , please PM me , its slightly different from Europe
  9. Phillips007

    USA Designing an Electrical Power System for a rack

    Hi everyone, I’m in the process of designing an electrical power system for a rack(cabinet enclosure), and I would love some input from the community. The components I’m planning to use include: Circuit Breakers (Main CB: 35-40A, Other CBs: 2A) Surge Arrester Automatic Transfer Switch (ATS)...
  10. s#loxy

    which charger for Sealed Lead Acid Battery 12V 7.0Ah?

    I'm planning on buying 12V 7.0 lead acid battery (item 38315 from Screwfix) to power a small water pump(Seaflo 12V 1.2 GPM 35 PSI Water Pressure Diaphragm Pump). I've searched a bit for which charger to charge up battery but was hoping someone would point me to an affordable option or tell me...
  11. D

    4.5W heating wire

    As long as the heat input is greater than the heat losses from the container and the resistance is sufficient to limit the current to no more than 2A the wire could be any length.
  12. david74

    4.5W heating wire

    Hi, I am not an electrician. Not even good a physics. My question is basic maths. I want to check an answer I got from AI from someone fluent in terms. So I asked AI, how long a 3mm 8AWG Heating Resistor Nichrome Wire for Heating Elements would have to be to raise temperature of 100ml water...
  13. N

    Dodgy trade pictures for your amusement! - 1 Million Views!

    I was scrolling down and half expecting to see a 2A socket on the ceiling. Joking aside, I've seen old 15A sockets on more than one bathroom ceiling.
  14. S

    Dodgy trade pictures for your amusement! - 1 Million Views!

    We had them in our rooms at university - the town centre Woolies did a good trade at the start of each academic year. Plus there was a second hand market selling your surplus plugs to freshers when you'd moved into more modern digs. The lighting circuit wasn't metered while the power circuits...
  15. westward10

    Dodgy trade pictures for your amusement! - 1 Million Views!

    I took the ceiling light out in our lounge and put in 2A sockets.
  16. J

    Dodgy trade pictures for your amusement! - 1 Million Views!

    That's a 2A BS 546 plug, so same range just 2A rather than 5A as the OP indicated. 2A is pretty rare TBH
  17. Avo Mk8

    Dodgy trade pictures for your amusement! - 1 Million Views!

    It's an MK 2A 3-pin plug. Familiar to me amongst the assortment of round pin plugs and adapters in our house when I was young(ish)! https://uk.rs-online.com/web/p/mains-plugs/1999226?
  18. oracle

    High Zs on auxiliary circuits

    The use of a separating transformer isolates the control circuits from the main supply. As a result, the Zs measurements on the secondary side of the transformer may not directly reflect the impedance back to the origin of the supply. The high Zs readings could be attributed to the inherent...
  19. Avo Mk8

    UK Identifying live, neutral and earth in outdoor festoon lighting

    I believe it's established that the LED's are all in series. The fact that there are 7 in each bulb makes the bulbs 7x3.5=24.5V each, so the 10 bulbs in each string are using the 245V(!) mains directly from the bridge rectifier. Each string is a series circuit using 20mA, you add these together...
  20. Richard Cook

    UK Identifying live, neutral and earth in outdoor festoon lighting

    1. Current per LED: 20mA (0.02A). 2. Current per Bulb: Since each bulb has 7 LEDs in parallel, the current for each bulb is: 0.02A \times 7 = 0.14A 3. Total Current for 10 Bulbs: 0.14A \times 10 = 1.4A So a bridge rectifier of at least 400v with a current rating of at least 2A?
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