Successful vac relay for High-Risk Applications
Reliable vac relay Styles for Commercial and Industrial Applications
CHINA – ?¡ãAny Electronics?¡À proudly presents their complete variety of vac relay . They provide a total set of vac relay merchandise and other interrelated goods. These units are seen in different applications which include commercial applications, industrial control circuits along with OEM Panels. These devices include exceptional precision and repeatability. The normal vac relay which are designed in recent times need incredibly little panel space.
115 vac relay
120 vac relay
220 vac relay
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koolkinkajou asked How can I add supplment overcurrent for my relay-transformer?
I'm putting in a 240vac to 24 v relay transformer to hook up an thermostat. Even though it is already on a 20amp two pole circuit breaker in my house out of an abundance of caution I want to add supplemental over-current in the electrical box. To do this I would like to add an extra circuit breaker or fuse in the box but I don't see any parts to do this?
And got the following answer:
You can fuse either the high or low voltage side of the transformer, but it is impractical to fuse the 120 volt side of a small transformer, since it would be a very small amperage requiring a special order fuse. You will also not be able to find a small panel mount circuit breaker locally, but you may find one on eBay. That is why they are usually fused. Find the VA rating on your transformer, or KVA if it is a larger one. If it is shown in KVA, multiply the number by 1000 to get the VA rating. Do not leave out any decimal points. Divide the VA number by 24. This will give you the maximum amperage the transformer is rated for on the 24 volt side. If your are fusing the 120 side, divide the VA by 120 instead. Install an inline fuse holder with a fuse rated at the amperage you calculated (or as close as you can get without going over) in series with one of the 24 VAC wires. You may have to order the fuse if you can't find it at an electronics store. The voltage rating of the fuse and fuseholder should be 24 volts AC or DC (automotive is okay) or higher. If you choose to fuse the 120 volt side instead, the fuse and holder will have to be rated at 120 VAC (automotive not okay) or higher, also. Many manufacturers oversize the fuse on control circuits to avoid nuisance trips due to inrush currents when using fast-blow fuses. It is not uncommon to see 3 amp fuses used on a 40 VA transformer secondary.
The vac relay work particularly well with various applications that happen to be certain to power distribution and protection. The relays include wide adjustment ranges with a scale that is definitely easy to read either in 3 or 4 digits according to the model. These vac relay assist in growing the flexibility of your applications, decrease the all round energy and upkeep fees. You can find relays which are used for common purposes which are available in dependable designs with quick replacement possibilities. And you will discover models that happen to be utilised for industrial applications and heavier duty applications that work on significant loads. These merchandise are produced to meet the lifetime industrial manage requirements in the applications.
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