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 Number of Poles Tripping Characteristics Series Range Breaking Capacity at Maximum Voltage Rating Circuit Breaker Type Mounting Style Overall Depth Overall Dimensions Overall Length Overall Width Rated AC Voltage Tripping Mechanism
RS Stock No. 419-634
Mfr. Part No.5940S
PHP407.86
Each
units
40A 1 Type B 5940S, EMCH, EUB, S800 Sentry - - - - - - - - -
RS Stock No. 714-2120
Mfr. Part No.RSNHXB40
BrandWylex
PHP369.26
Each
units
40A 1 Type B Series 1 NSB 6 kA - DIN Rail Mount 76mm 90 x 18 x 76mm 90mm 18mm - -
RS Stock No. 419-599
Mfr. Part No.5910S
PHP407.86
Each
units
10A 1 Type B 5910S, EMBH, EUB, S800 Sentry - - - - - - - - -
RS Stock No. 850-8619
Mfr. Part No.EZ9F16132
PHP244.45
Each
units
32A 1 Type B EZ9 Easy 9 - - - - - - - - -
RS Stock No. 180-6101
Mfr. Part No.0 058 48
BrandLegrand
PHP5,310.92
1 Box of 2
Box(es)
- 3P+N - - - 100 kA - - 94mm 71.2 x 73 x 94mm 71.2mm 73mm 500V -
RS Stock No. 381-5833
Mfr. Part No.8740S
PHP374.12
Each
units
40A 1 Type C 8740S Sentry - - - - - - - - -
RS Stock No. 798-2215
Mfr. Part No.EUB140B
BrandEuropa
PHP179.98
Each
units
40A 1 Type B EUB EU - - - - - - - 230 V ac, 240 V ac -
RS Stock No. 381-5782
Mfr. Part No.8706S
PHP407.86
Each
units
6A 1 Type C 8706S Sentry - - - - - - - - -
RS Stock No. 798-2224
Mfr. Part No.EUB150B
BrandEuropa
PHP179.98
Each
units
50A 1 Type B EUB EU - - - - - - - 230 V ac, 240 V ac -
RS Stock No. 191-7252
Mfr. Part No.ALB321
BrandEaton
PHP715.47
Each
units
32A 1 Type B ALB Memera - - - - - - - - -
RS Stock No. 381-5798
Mfr. Part No.8710S
PHP363.20
Each
units
10A 1 Type C 8710S Sentry - - - - - - - - -
RS Stock No. 798-2211
Mfr. Part No.EUB125B
BrandEuropa
PHP190.14
Each
units
25A 1 Type B EUB EU - - - - - - - 230 V ac, 240 V ac -
RS Stock No. 419-628
Mfr. Part No.5932S
PHP345.40
Each
units
32A 1 Type B 5932S, EMCH, EUB, S800 Sentry - - - - - - - - -
RS Stock No. 199-2944
Mfr. Part No.RS/B16
BrandWylex
PHP787.78
Each
units
16A 1 Type B B Series Plug In - - - - - - - - -
RS Stock No. 199-2966
Mfr. Part No.RS/B20
BrandWylex
PHP828.72
Each
units
20A 1 Type B B Series Plug In - - - - - - - - -
RS Stock No. 293-1401
Mfr. Part No.0 058 10
BrandLegrand
PHP520.89
Each
units
10A 1 - - - - - - - - - - - -
RS Stock No. 860-8693
Mfr. Part No.5TT3421
BrandSiemens
PHP21,585.91
Each
units
4A - - 5TT3 Sentron - - - - - - - - -
RS Stock No. 381-5811
Mfr. Part No.8720S
PHP345.40
Each
units
20A 1 Type C 8720S Sentry - - - - - - - - -
RS Stock No. 798-2218
Mfr. Part No.EUB120B
BrandEuropa
PHP173.91
Each
units
20A 1 Type B EUB EU - - - - - - - 230 V ac, 240 V ac -
RS Stock No. 419-606
Mfr. Part No.5916S
PHP436.82
Each
units
16A 1 Type B 5916S, EMBH, EUB, S800 Sentry - - - - - - - - -
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