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Differences between MCB, MCCB, ELCB, and RCCB

By September 5, 2019Uncategorized
Differences between MCB - MCCB - RCCB - ELCB

Differences between MCB, MCCB, ELCB, and RCCB  

 

To help you distinguish MCB, MCCB, ELCB and RCCB, Electgo will give you some key differences that may help you have more clear idea about 4 of these Circuit Breaker.

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Miniature Circuit Breaker (MCB)

Miniature Circuit Breaker (MCB) automatically puts off an electrical circuit whenever any abnormality occurs in the electrical network such as short circuit and or overload conditions. The MCB is an electromechanical device that protects electric wires, devices, appliances e.t.c from overcurrent so as to prevent any kind of damage, fire, or electrical hazards. MCBs are quite easy and much safer to handle; it also quickly restores the supply of currents.

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What is MCB?

MCB Products

A9F73113

Acti9 iC60N 1P 13A B curve 10kA

A9F75213

Acti9 iC60N 2P 13A D curve 10kA

A9F95372

Acti9 iC60L 3P 1.6A K curve 100kA

A9F95463

Acti9 iC60L 4P 63A K curve 15kA

A9K11206

Acti9 K60H Biconnect 2P 6A B curve

A9K12306

Acti9 K60H Biconnect 3P 6A C curve

A9N18402

Acti9 C120H 1P 80A B curve 15kA

View More MCB
2CCS881001R0841

Miniature Circuit Breaker (MCB) – ABB / Stotz (S800C series) – S801C-D125 – 1-pole (1P) – Rated current 125A – D-curve 

2CCS884001R0557

Miniature Circuit Breaker (MCB) – ABB / Stotz (S800C series) – S804C-K40 – 4-poles (4P) – Rated current 40A – K-curve 

2CDS272001R0061

Miniature Circuit Breaker – S200M – 2P – D – 6 ampere. System pro M compact S200M miniature circuit breakers are current limiting.

2CDS273061R0467

Miniature Circuit Breaker – S200MUC – 3P – K – 16 ampere. The miniature circuit breaker S 200 M UC extends the established ABB System pro M compact® product range with an MCB for DC and AC applications

2CDS273427R0257

Miniature Circuit Breaker (MCB) – UL1077 compliant – ABB / Stotz (S200PR series) – S203PR-K1.6 – 3-poles (3P) – Rated current 1.6A – K-curve

2CDS274427R0457

Miniature Circuit Breaker (MCB) – UL1077 compliant – ABB / Stotz (S200PR series) – S204PR-K15 – 4-poles (4P) – Rated current 15A – K-curve

2CDS274061R0165

MCB, Miniature Circuit Breaker – S200MUC – 4P – B – 16 ampere. The miniature circuit breaker S 200 M UC extends the establishedABB System pro M compact® product range with an MCB for DC and AC applications

ABB View More MCB

Molded Case Circuit Breaker (MCCB)

The Molded Case Circuit Breaker (MCCB) is another type of electrical protection device that is used when the load current exceeds the limit of an MCB. The molded case circuit breaker also provides protection against short circuit faults, overloads and it can also be used for switching circuits. It is also used for higher current rating and fault levels in domestic and small commercial applications. But the large current ratings and high breaking capacity of the MCCB are much more useful in industrial applications.

Learn more about MCCB:

MCCB in Electrical

MCCB Products

33229

NS630bH Micrologic 2.0A (LI) 630A 4P4d – 4 poles (4P4d) 

EZC250H2175

EZC250H 2P 175A – 2 poles (2P2d)

EZCV250N4080

EZCV250N 4P 80A – 4 poles (4P4d)

LV426351

NSXm 25F 3P3d – 3 poles (3P3d) 

LV426559

NSXm 160H 3P3d – 3 poles (3P3d)

LV563315

CVS630N TMD 500A 3P3d – 3 poles (3P3d)

LV563506

CVS630F ETS 2.3 630A 4P4d – 4 poles (4P4d)

View More MCCB
1SDA059554R1

T5V 400 PR223DS In=320A 4p F F – 4-poles (4P4d)

1SDA063448R1

T5L630 PR221DS-LS/I In630 4p FFC 1000VAC – 4-poles (4P4d)

1SDA060167R1

T1E/C 100 TMF30-500 3p F F – 3-poles (3P3d)

1SDA063425R1

T4L250 PR222DS/P-LSIG In250 4pFFC1000VAC – 4-poles (4P4d)

1SDA067004R1

XT2N 160 TMD 4-40 3p F F (XT2NE3004BFF000XXX) – 3-poles (3P3d) 

1SDA068405R1

XT4V 160 TMA 80-800 3p F F (XT4VE3080BFF000XXX) – 3-poles (3P3d)

ABB View More MCCB

 Residual Current Circuit Breaker (RCCB)

Residual Current Circuit Breaker (RCCB) is basically an electrical wiring device whose function is to disconnect the circuit whenever there is leakage of current flow from the human body, or the current flow is not balanced between the phases conductors. It is the best device for detecting and taking care of electrical leakage currents, so it gives protection against electric shock or electrocution caused by direct contact. RCCB is usually used in series with an MCB. The MCB protects the RCCB from over-current and short-circuits current. Both neutral and phase wires are connected through an RCCB.  The combination of these two devices provides a very effective form of protection from electric shock, and it is widely used for protection against a leakage current of about 30,100 and 200mA.

Learn more about RCCB:

What is a RCCB? Its function, RCBO, ELCB, types, ratings, limitations & price.

RCCB Products

A9KR15263

Acti9 iID K 2P 63A 100mA

A9KR16263

Acti9 iID K 2P 63A 300mA

A9R11480S

Acti9 iID 4P 80A 30mA

A9R12491

Acti9 iID 4P 100A 100mA

A9R14480

Acti9 iID 4P 80A 300mA

A9R71463S

Acti9 iID 4P 63A 30mA

A9R54225

Acti9 iID 2P 25A 300mA

View More RCCB
2CSF202005R1800

F202 AC-80/0.03 IEC – 2-poles (2P) 

2CSF202005R1900

F202 AC-100/0.03 IEC – 2-poles (2P)

2CSF202005R3250

F202 AC-25/0.3 IEC – 2-poles (2P)

2CSF202005R4900

F202 AC-100/0.5 IEC – 2-poles (2P)

2CSF204001R1950

F204 AC-125/0.03 – 4-poles (4P)

2CSF204005R1250

F204 AC-25/0.03 IEC – 4-poles (4P)

2CSF204102R1630

FH204A-63/0.03 – 4-poles (4P)

ABB View More RCCB

Earth Leakage Circuit Breaker (ELCB)

Earth Leakage Circuit Breaker (ELCB) has the same function as the residual current circuit breaker, but they are voltage sensor devices. However, the ELCB is old technology, and it’s no more in common use. The RCCB has taken center stage since it a current sensitive device, and it has a better advantage over ELCB.

Related topic:

Difference between MCCB and ACB

ELCB Products

A9D07616

Acti9 iDPN H Vigi 2P 16A B curve 30mA

A9D31625

Acti9 iDPN N Vigi 2P 25A C curve 30mA

A9D60616

Acti9 iDPN N Vigi 2P 16A B curve 100mA

A9D11220

Acti9 iC60H2 RCBO 2P 20A C curve 30mA

A9D11820

Acti9 iC60H ELCB 2P 20A C curve 30mA

A9D12806

Acti9 iC60H ELCB 2P 6A C curve 100mA

A9D19225

Acti9 iC60H2 RCBO 2P 25A C curve 30mA

View More ELCB
2CSR275151R1105

DSE201 M B10 A30 – 2-poles (1P+N) – Rated current 10A – B-curve – Residual current sensitivity 30mA

2CSR255140R3084

DS201 C8 A300 – 2-poles (1P+N) – Rated current 8A – C-curve – Residual current sensitivity 300mA

2CSR255440R1134

DS201 C13 APR30 – 2-poles (1P+N) – Rated current 13A – C-curve – Residual current sensitivity 30mA

2CSR256040R3325

DS203NC B32 AC300 – 4-poles (3P+N) – Rated current 32A – B-curve – Residual current sensitivity 300mA

2CSR256440R2254

DS203NC C25 APR100 – 4-poles (3P+N) – Rated current 25A – C-curve – Residual current sensitivity 100mA

2CSR252001R1404

DS202 AC-C40/0.03 – 2-poles (2P) – Rated current 40A – C-curve – Residual current sensitivity 30mA

2CSR253001R1504

DS203 AC-C50/0.03 – 3-poles (3P) – Rated current 50A – C-curve – Residual current sensitivity 30mA

View more ELCB
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