Note: Since I am not the curator of the Electrical fraternity but just another peanut wanting to bring a message of safety across, let’s share some more info so better informed choices will be made. First and foremost question that makes the deal either easy or complicated is:
What everyone must know about circuit-breakers. When Mr. Edison and Mr. Tesla had their life-changing or more like civilization changing disagreement, circuit breakers did not exist yet, making Edison’s point – that AC is extremely dangerous – very valid. With no protection, sooner or later, everything would have burnt down under electrical fault conditions and […]
Product technical / data sheets: Is that all it provides, data? I could look at a datasheet only and tell you books about the product and the spirit of the company and its management. In this brave new world of ours, if the information is not readily available it can be a product or service […]
Circuit breakers are designed according to he purpose it must serve ..in this case protecting a circuit – with the smallest size wires – whilst still having to contend with all kinds and of types of loads, thus it is called utilization categories…the jobs it does. In other words, it is all about the current […]
electing a circuit breaker based on its supply …What? In my opinion, from all the considerations in selecting a circuit breaker, this is the most important of all. Why? This is the only rating which, if incorrectly done, will render the circuit breaker as a safety device useless. The rated breaking capacity ensures that if […]
In an enclosure…do I use an isolator or a circuit breaker? Sometimes it gets confusing as what shall we use as the mains switch for a DB or electrical panel/enclosure: – Do we use an isolator or do we use a circuit breaker? Let’s just throw out a few common-sense pointers:
Across the world power utility companies provides us electricity in different formats but fundamentally they are all the same. From the power station driven by – hydro (water), coal/steam or nuclear the alternators come with three lines (phases) with high voltage, which will first be stepped up using transformers, enabling efficient transporting over kilometers, then […]
A much deeper discussion of the tripping GRAPH presented by manufacturers. This is a continuation from posts: An introduction to the circuit breaker tripping curve. What does an adjustable circuit breaker really adjust and The LSI(G) circuit breaker controller in perspective A deeper discussion of the LSI (G) from a manufactures point of view. For […]
There are many who has answered this question before:- Most say relays are JUST smaller brothers of contactors. Others say:- Up to a certain amperage (30/40Amp) it is a relay and beyond that it is a contactor. Others say:- In the construction, the relay coil sits on the side and a contactor it sits in […]
An introduction to the circuit breaker tripping curve. So, If I pulled 6Amps through a 6amp circuit breaker will it trip? If you said yes then you must hang around this site much more frequently. So when does a circuit breaker trip then?
