Residential MCBs

Residential MCBs (miniature circuit breakers) are used in domestic consumer units and switch fuses to break the circuit in case of a fault. They are usually used to protect small appliances or control circuits, and have a fixed trip setting.

How do residential MCBs work?

Residential MCBs are a very low voltage type of circuit breaker. When a current or voltage is interrupted, an arc is generated, which must be controlled and extinguished so that the circuit can function again.

MCBs utilise air alone to break the arc by dividing it into smaller arcs using a series of insulated parallel metal plates known as arc chutes to cool each section down separately. Once the fault is fixed, the contacts are closed once more to restore power to the circuit.

Types of residential MCBs

Residential MCBs can have differing current and voltage ratings, lead times and numbers of poles. Their dimensions can also vary, though all are relatively small.


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Description Price Current Rating Model Number Number of Poles Tripping Characteristics Series Range Circuit Breaker Type Mounting Style Overall Depth Overall Width Rated AC Voltage Tripping Mechanism
New
RS Stock No. 200-6148
Mfr. Part No.A9PA4616
kr 492,79
Each
Units
16A IDT40N XA 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6171
Mfr. Part No.A9PA2720
kr 940,97
Each
Units
20A IDD40T XA 3 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6175
Mfr. Part No.A9P34606
kr 757,56
Each
Units
6A IDT40N 1 Type D - Acti9 - - - - - -
New
RS Stock No. 200-6155
Mfr. Part No.A9PA2606
kr 272,20
Each
Units
6A IDT40N XA 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6169
Mfr. Part No.A9PA2616
kr 219,04
Each
Units
16A IDD40T XA 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6149
Mfr. Part No.A9PE4616
kr 478,50
Each
Units
16A IDT40N XA 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6156
Mfr. Part No.A9PA2710
kr 940,97
Each
Units
10A IDT40N XA 3 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6178
Mfr. Part No.M9F42108
kr 511,70
Each
Units
8A C60BP 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6153
Mfr. Part No.A9PA2620
kr 239,67
Each
Units
20A IDT40N XA 1 Type C - Acti9 - - - - - -
RS Stock No. 850-8593
Mfr. Part No.EZ9F16110
kr 49,90
Each
Units
10A - 1 Type B EZ9 Easy 9 - - - - - -
New
RS Stock No. 200-6179
Mfr. Part No.M9F42210
kr 935,93
Each
Units
10A C60BP 2 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6161
Mfr. Part No.A9DA3732
kr 3 231,54
Each
Units
32A IDD40N 3 Type C - Acti9 - - - - - -
RS Stock No. 850-8606
Mfr. Part No.EZ9F16120
kr 49,90
Each
Units
20A - 1 Type B EZ9 Easy 9 - - - - - -
RS Stock No. 293-1423
Mfr. Part No.0 058 12
BrandLegrand
kr 108,24
Each
Units
20A - 1 - - - - - - - - -
New
RS Stock No. 200-6164
Mfr. Part No.A9DP2610
kr 1 516,90
Each
Units
10A IDT40T XA 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6174
Mfr. Part No.A9PA4732
kr 1 112,36
Each
Units
32A IDD40T XA 3 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6152
Mfr. Part No.A9PE4620
kr 509,63
Each
Units
20A IDT40N XA 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6168
Mfr. Part No.A9PE2616
kr 212,60
Each
Units
16A IDD40T XA 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6162
Mfr. Part No.A9DV2625
kr 1 623,07
Each
Units
25A IDD40T TG 1 Type C - Acti9 - - - - - -
New
RS Stock No. 200-6172
Mfr. Part No.A9PA2725
kr 1 042,79
Each
Units
25A IDD40T XA 3 Type C - Acti9 - - - - - -
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