Difference Between MCB, MCCB and RCCB, RCB

Syambarley
7 min readMar 5, 2021

--

Difference-between-MCB-MCCB-and-RCCB-RCB

What is MCB (Miniature Circuit Breaker)?

  • MCB means “Miniature Circuit Breaker”.
  • Rated current under 100 amps.
  • Interrupting rating of under 18,000 amps.
  • Trip attributes may not be changed.
  • Working guideline dependent on warm or warm attractive activity.
  • Suitable for low current circuits (low energy necessity), for example, home wiring.
  • Generally, utilised where the typical current is under 100 Amps.

What is MCCB (Molded Case Circuit Breaker)?

  • MCCB means “Molded Case Circuit Breaker”.
  • Rated current in the scope of 10–2500 amps.
  • Thermal worked for an over-burden and engaging activity for a moment trip in SC (impede).
  • Interrupting rating can be around 10k — 200k amps.
  • Trip qualities are movable.
  • Suitable for high force rating and high energy, for example, business and mechanical use.
  • Generally, utilised where the typical current is in excess of 100 Amps.

What is the difference between MCB and MCCB?

Take a look at the difference between MCB and MCCB

MCB

It is also characterized as the electro mechanical gadget that protects an electrical circuit against an over current that may be influenced by a short out, over-loading, or defective plan. This is a superior choice to a Fuse since it doesn’t need a substitute once an over-burden is distinguished.

An MCB can be essentially interrupted, giving better operational assurance and more noteworthy handiness without causing huge working expenses. The working standard of MCB is basic.

schneider-electric-mcb

This sort of circuit breakers goes under deferring stumbling machines where the over current level extent manages the practical time. This unmistakably implies that these gadgets will work when the over-burden happens for an extensive stretch to produce intricacies for the circuit which is being protected.

Miniature circuit breakers react to transient burdens like engine commencement current supplies and switch rises along these lines. Typically, MCB’s are built to work negligibly than 25 msec at the hour of short circuits and 2 sec — 2 min while over-burdening conditions.

In specific conditions, this electrical switch is a button that continuously restricts when the flow moves through it and passes the greatest worthy breaking point. For the most part, these are intended to make preparations for over current and overheating.

MCCB

The MCCB is utilised to control electric energy in conveyance n/k and is having short out and over-burden security. This Circuit Breaker is an electro mechanical gadget that monitors a circuit from cut off over current. They offer short out and over current assurance for circuits goes from 63 Amps-3000 Amps. The vital capacity of MCCB is to give way to open a circuit physically, naturally, open a circuit under short out or over-burden conditions. In an electrical circuit, the over current may bring about a defective plan.

The MCCB is a choice to a breaker since it needn’t bother with a substitute once an over-burden is taken note of. In contrast to a wire, this electrical switch can be just reset after an error and offers improved administrator security and straightforwardness without obtaining working expenses.

For the most part, these circuits have a warm current for over current and the attractive component for impeding to work quicker.

schneider-electric-mccb

This gadget is primarily a bimetallic association where the association is that it incorporates two metals that get developed at transparent rates when those are oppressed high scope of temperature esteems. In the overall practical conditions, the bimetallic association will allow the progression of electric flow by means of MCCB.

While the current worth arrives at more than the stumbling voltage, at that point, the association will start to get warmed up and afterwards get shaped as a result of the different warm evaluating of warmth augmentation inside the association.

Lastly, the association will twist around to the point of physically that pushes the stumbling bar and opening the association. This prompts circuit interference.

Types of Miniature Circuit Breakers (MCB’s)

Type B MCB

This kind of MCB will trip in a split second at a pace of three to multiple times its appraised current. These are regularly utilised for resistive or little inductive burdens where exchanging floods are little. Hence, these are appropriate for private or light business establishments.

Type C MCB

This sort of MCB will trip immediately at a pace of five to multiple times its appraised current. These are ordinarily utilised for high inductive burdens where exchanging floods are high, like little engines and fluorescent lighting. In such cases, type C MCBs are liked to deal with higher estimation of short outflows. In this way, these are appropriate for exceptionally inductive business and mechanical establishments.

Type D MCB

This sort of MCB will trip right away at a pace of ten to multiple times its appraised current. These are regularly utilised for exceptionally high inductive burdens where high inrush current is incessant. These are appropriate for explicit modern and business applications. The basic instances of such applications incorporate x-beam machines, UPS frameworks, modern welding gear, massive winding engines, and so forth.

Pros and Cons of MCB and MCCB

Pros

  • MCB or Miniature Circuit breaker protects circuits from overload and short circuit. On the other hand, the MCCB or Moulded case circuit breaker protects electrical equipment from over-temperature and fault current.
  • MCB is available in single, two, three and four versions. Likewise, MCCB is available in single, two, three and four versions.
  • Both MCB and MCCB is perfect for ensuring the safety of electrical supply and equipment if you install them in your building and device.
pros-and-cons-of-mcb

Cons

  • MCB has a certain limitation in terms of the tripping circuit as it is fixed and cannot be used for high voltage supply that rates more than 100 amps. On the other hand, MCCB has a movable tripping circuit and can be installed in high voltage system ranges from 10 amps to 200 amps.
  • For remote usage, you cannot use MCB as it does not possess the function, whereas, in MCCB, a remote control is possible.
  • As MCB has low capacity, it can only be used for the residential electric system. MCCB is typically used for commercial and industrial purpose as it interrupting rating rages from 10k to 200k amps.

Difference between RCCB and RCB

What is RCD, RCB or RCCB?

Residual Current Device (RCD) is otherwise called Residual Current Breaker (RCB) or Residual Current Circuit Breaker (RCCB).

RCB -Residual Current Breaker chips away at the suspicion that the current going to the gadgets gadget should come out from the nonpartisan wire if there could be no alternate path for the current stream.

RCB estimates the current going inside the associated gadget and coming out from the device. In the event that both of these current are equivalent, there would be no issue with the regular use of the gadget.

Types of RCCB: The 2 Pole RCCB and 4 Pole RCCB.

Different types of RCCB are:

2 Pole RCCB: This is utilised if there should be an occurrence of a solitary stage supply association that has only a live and neutral wire.

4 Pole RCCB: This is utilised if there should be an occurrence of a three-stage supply association.

Pros and Cons of RCB and RCCB

Pros

  • The fundamental motivation behind RCCB is to shield the human from the leftover current.
  • It is utilized to ensure against the world’s deficiency just as electrical stun.
  • It consequently detaches the circuit when the evaluated affect ability is surpassed.
  • It offers security against voltage vacillations as it incorporates a separating gadget that makes preparations for transient voltage levels.
  • It offers the chance of a double end both for link and bus bar association.

Cons

  • RCB doesn’t offer security against current over-loading
  • This electrical switch won’t ensure against a socket outlet being set up with its live and neutral terminals the incorrect path round.
  • RCCB is a greater expense.
  • This electrical switch won’t ensure against live neutral stuns due to the flow throughout everyday life and neutral in balance.
  • RCCB doesn’t shield from the overheating that strike if conductors are not appropriately screwed into terminals.

Conclusion:

RCCB is critical in giving constant assurance to circuits. In enterprises and high voltage business setups particularly, the importance of MCB, MCCB, RCB and RCCB can’t be sabotaged as there is risk of electrical shocks and accidents.

At Eleczo, we offer Wintrip RCCB, a best in class item, MCB, and MCCB fit for residential and business application. C&S RCCBs adjusts to IEC 61008–1 and is utilised for both control and confinement of electrical circuits.

Being a regarded worldwide brand for power the executives items for more than ten years on Eleczo, Buy all types of mcb, rcb, mccb and other electrical products Online at the best price from Eleczo.com, Eleczo is India’s top Rated electrical supplier.

For product list and prices, drop your enquiries to sales@eleczo.com or call us at: +91 9090903837.

--

--

Syambarley
Syambarley

Written by Syambarley

0 Followers

I work as a digital marketer for an e-commerce company called eleczo.com. I have 5+ years of experience in the digital marketing field such as SEO, SMM etc.

No responses yet