"YOUR FRIENDLY PHILIPPINE FOREIGNERS AND PHILIPPINE PROVINCES ONLINE ELECTRICAL SUPPLIER"

"YOUR FRIENDLY PHILIPPINE FOREIGNERS AND PHILIPPINE PROVINCES ONLINE ELECTRICAL SUPPLIER...AND SERVICE PROVIDER" WE'LL HELP YOU OWN YOUR ELECTRICAL SUPPLIES REQUIREMENTS

Tuesday, August 27, 2013

What is the difference between MCB & MCCB?

Resolved Question

Show me another»

What is the difference between MCB & MCCB?

Best Answer - Chosen by Asker

MCBs are miniature circuit breakers with optimum protection facilities of overcurrent only.These are manufactured for fault level of up to 10KA only with operating current range of 0.5 to 63 Amps (the ranges are fixed), single,double and three pole verson.These are used for smaller loads -electronic circuits,house wiring etc.
MCCBs are Moulded case Circuit breakers,with protection facilities of overcurrent, earth fault.it has a variable range of 50% to 100% operating current.They can be wired for remote as well as local operation both.They are manufactured for fault levels of 16KA to 50KA and operating current range of 25A to 630Amps.They are used for aplication related with larger power flow requirement.
  • 1 person rated this as good
Asker's Rating:
5 out of 5
Asker's Comment:
thankxx

Other Answers (8)

  • MOULDED CASE CIRCUIT BREAKER
    Load Line range of Moulded Case Circuit Breakers are designed and manufactured to world-class standards. Loadline series MCCBs provide overload and short-circuit protection for all applications. The thermal & magnetic elements, adjustable over a wide band, make these MCCBs ideal for any distribution application.

    Range :

    25A to 1600A in 5 frame sizes in single pole, three pole and four pole with switched neutral execution.

    Specification :

    Conforms to IEC:60947-1&2 / IS:13947-1&2.

    Features :

    Wide range : 25A to 1600A (AC)
    Compact dimensions
    Adjustable thermal setting (70-100% In).
    Adjustable magnetic setting (5-10 times In / 4-10 times In).
    Suitable for use as switch disconnector
    In 4PwSN version, neutral makes first and breaks last
    Push to trip button provision
    Uniform front escutcheon plate
    Positive dolly position indication
    Suitable for DC application upto 1600A
    Separate main and arcing contacts
    Wide range of accessories

    MASTER CIRCUIT BREAKER
    http://books.google.co.in/books?id=3AncN…
    • 1 person rated this as good
  • MCB is MINIATURE CIRCUIT BREAKER
    MCCB is MOULDED CASE CIRCUIT BREAKER
    MCB-A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Unlike a fuse, which operates once and then has to be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation. Circuit breakers are made in varying sizes, from small devices that protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city.Rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.
    MCCB (Moulded Case Circuit Breaker)—rated current up to 1000 A. Thermal or thermal-magnetic operation. Trip current may be adjustable in larger ratings.
  • MCB is a shortcut for Miniature Circuit Breaker, usually mounted as withdrawable type and used for small electronic equipment loads, while MCCB, is a Molded Case Circuit Breaker,usually used for motor and transformer loads, The latter is bolted mounted and usually has higher interrupting current rating than MCB's

    Source(s):

    www.MCB and MCCB's.
  • MCB miniature circuit breakers generally used for control circuits (Approximately 0.5 Amps - 15amps) power supply application.
    MCCB Molded case Circuit breaker - power application Generally 3 pole or 4 pole Start from 15Amps to 400Amps( some time more )

    Source(s):

  • MCB = miniature circuit breaker upto 100 ampere.

    MCCB = molded case circuit breaker upto 1000 ampere.

    Source(s):

    You may refer to SCHNEIDER ELECTRIC catalogues
    • 2 people rated this as good
  • Minature Circuit breaker (17.5-18mm width single pole up to 63A)

    Mould case circuit breakers (larger up and can be >>>63A)
  • MCCB have have many times more fault-current rating, than MCB.

    Hence MCB ( Miniature circuit breakers) are used on light loads, and help in fault-clearance at lower level.
  • MCB means moulded circuit breaker.
    MCCB means motor control circuit breaker.
Post a Comment

About Me

My Photo

ELECTRICAL ITEMS OFFERED: AUTOMATIC VOLTAGE REGULATOR AVR, DRY TYPE TRANSFORMER(INDUCTION, ISOLATION TYPE),BATTERY RACK, PHASE CONVERTER, UNINTERRUPTIBLE POWER SUPPLY, INVERTER, FREQUENCY INVERTER, PHASE CONVERTERS,SLIDING GATE, SWINGING GATE, ELECTRICAL FENCE, LIGHTNING ARRESTER, GROUNDING SYSTEM...TVSS...SURGE PROTECTION WIRES(THHN,THWN), ROYAL CORD, XLPE CABLES,INSTRUMENTATION CABLES,GROUNDING CABLES,ALUMINUM CABLES, CIRCUIT BREAKERS,PANELBOARD,LIGHTNING ARRESTER, ELECTRICAL FENCE,SURGE PROTECTION,LIGHTING PRODUCTS, LED PRODUCTS
EUROPEAN CABLES MANUFACTURED IN TURKEY AND ITALY (CONTROL CABLE,POWER CABLE, FIBER OPTIC CABLE,MEDIUM VOLTAGE CABLE,HIGH VOLTAGE CABLE,ALUMINUM CABLES,COMMUNICATION CABLES)
I DO NOT STOCK THESE CABLES..IT IS BEING SHIPPED THRU AIR PER ORDER...
SO IT IS FASTER TO IMPORT THESE CABLES ESPECIALLY WHEN THE REQUIREMENT IS "ASAP"...MODE OF PAYMENT:   50% INITIAL INVESTMENT(DOWNPAYMENT) BALANCE UPON PICKUP...MINIMUM QUANTITY 1KILOMETER ...THANK YOU

THE ELEVATOR TO SUCCESS IS ALWAYS OUT OF SERVICE...BETTER USE THE STAIRS INSTEAD....
INSANITY..DOING THE SAME THINGS OVER AND OVER AGAIN..THEN EXPECTING A DIFFERENT RESULT...
THE BEST THINGS IN LIFE ARE TOTALLY FREE..FAMILY..FRIENDS..RELATIVES..ACQUAINTANCES...HEALTH AND MOST ESPECIALLY TIME...
IF YOU'RE GONNA BE THINKING ANYWAY...YOU MIGHT AS WELL THINK BIG..-SIR DONAL TRUMP
ONE CANNOT PRODUCE A BABY IN ONE MONTH BY GETTING NINE WOMEN PREGNANT...- SIR WARREN BUFFET
PRICE IS WHAT YOU PAY...VALUE IS WHAT YOU GET...-SIR WARREN BUFFET
IT TAKES 20 YEARS TO BUILD A REPUTATION AND FIVE MINUTES TO RUIN IT..IF YOU THINK ABOUT THAT YOU'LL DO THINGS DIFFERENTY...-SIR WARREN BUFFET
SMALL MINDS TALK OF PEOPLE...AVERAGE MINDS TALK OF EVENTS...
GREAT MINDS TALK OF IDEAS...
“I shall pass this way but once; any good that I can do 
        or any kindness I can show to any human being;   
        let me do it now. Let me not defer nor neglect it,
        for I shall not pass this way again.”
If you wanna make the world a better place
take a look at yourself and make a change  
                  - Michael Jackson
"If You Think Education is Expensive,
        count the cost of being ignorant" - Past Harvard President
MABUHAY PO ANG LAHAT NG GOOGLE PLUS NETWORK/CONNECTIONS...MABUHAY PO ANG PANGINOON...MABUHAY PO ANG PILIPINAS...MABUHAY PO TAYONG LAHAT....
FAVORITE BUSINESS LEADERS...
LOCAL: SIR MANNY VILLAR...SIR MANNY PANGILINAN...SIR JOHN GOKONGWEI..SIR HENRY SY
INTERNATIONAL: SIR ROBERT KIYOSAKI...SIR WARREN BUFFET...SIR GEORGE SOROS OF QUANTUM FUND...SIR STEVE JOBS OF APPLE...SIR RICHARD BRANSON OF VIRGIN GROUP OF COMPANIES...SIR BILL GATES OF MICROSOFT..SIR DAVID FILO OF YAHOO...SIR LARRY PAGE AND SIR SERGEY BRIN OF GOOGLE...SIR MARK ZUCKERBERG OF FACEBOOK..SIR DONALD TRUMP - REAL ESTATE BILLIONAIRE...
TIME IS GOLD...NO TIME FOR SMALL TALK...BUSINESS AS USUAL....THANK YOU
WHEN YOU DO NOT HAVE THE MONEY...YOU BETTER USE YOUR HEAD...LEVERAGE IF YOU MUST...
WELCOME TO THE INFORMATION AGE...GONE ARE THE DAYS OF THE INDUSTRIAL REVOLUTION....EVERYONE SHOULD BE ESTABLISHING HIS/HER OWN BUSINESS...
THE POSSIBILITIES ARE ALWAYS ENDLESS...
TAKE CALCULATED RISK....
THE GREATER THE RISK THE GREATER THE RETURN...
KUDOS TO ALL BUSINESS MINDED PEOPLE...
KUDOS TO ALL TRUE BLUE..ENTREPRENEUR....
"A LIFETIME STUDENT...A LIFETIME LEARNER"
I ALWAYS KEEP MY CUP EMPTY...
FAVORITE QUOTE:   
"ONE THING I KNOW...ONLY ONE THING...IS THAT I KNOW NOTHING" - 
SIR SOCRATES
FEED YOUR MIND...FEED YOUR MIND...FEED YOUR MIND....