MCBs

MCBs, or Miniature Circuit Breakers, are electrical devices designed to protect an electrical circuit from damage caused by overcurrent. They serve as a crucial component in the electrical distribution system of buildings, homes, and industrial facilities. You can learn more in our MCB guide.

RS offer ...

Showing 1-20 of 846 products

Filter

Sort

Filter

Sort

Relevance
Price (high-low)
Price (low-high)
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 400 V AC, 72 V DC, 6 kA Breaking Capacity
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 400 V AC, 72 V DC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 489-6625Brand: SiemensManufacturers Part No.: 5SY6106-7Sähkönumero: 3223514

€ 27.61

€ 27.61 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 27.61
Add to basket
Siemens
Miniature Circuit Breaker
1
-
6 A
-
Type C
-
-
400 V
-
72 V
-
6kA
DIN Rail
-
SENTRON
-
5SY6
Screw
IP20
-
-
-
17.5 mm
76mm
-
CCC, CE, EAC
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 6 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 6 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 772-1259Brand: SiemensManufacturers Part No.: 5SY4106-8Sähkönumero: 3224018

€ 33.76

€ 33.76 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 33.76
Add to basket
Siemens
Miniature Circuit Breaker
1
-
6 A
-
Type D
-
-
400 V
-
60 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
-
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60947-2/UL1077, IEC/EN 60898-1
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 4 A, Type C, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 4 A, Type C, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 622-0036Brand: SiemensManufacturers Part No.: 5SY4104-7Sähkönumero: 3222536

€ 33.51

€ 33.51 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 33.51
Add to basket
Siemens
Miniature Circuit Breaker
1
-
4 A
-
Type C
-
-
400 V
-
60 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
-
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60898-1, IEC/EN 60947-2/UL1077
76mm
-
-
-
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 3-Pole, 16 A, Type C, 400 V AC, 72 V DC, 6 kA Breaking Capacity
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 3-Pole, 16 A, Type C, 400 V AC, 72 V DC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 489-6710Brand: SiemensManufacturers Part No.: 5SY6316-7Sähkönumero: 3223578

€ 109.18

€ 109.18 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 109.18
Add to basket
Siemens
Miniature Circuit Breaker
3
-
16 A
-
Type C
-
-
400 V
-
72 V
-
6kA
DIN Rail
-
SENTRON
-
5SY6
Screw
IP20
-
-
-
53 mm
90mm
-
CSA C22.2 No.235, DIN EN 61346-2, EN 60898, IEC 60947-2, IEC 81346-2, UL 1077
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 2 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 2 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 772-1246Brand: SiemensManufacturers Part No.: 5SY4102-8Sähkönumero: 3224014

€ 35.64

€ 35.64 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 35.64
Add to basket
Siemens
Miniature Circuit Breaker
1
-
2 A
-
Type D
-
-
400 V
-
60 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
Combined Terminal
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60898-1, IEC/EN 60947-2/UL1077
76mm
-
-
-
Siemens SENTRON 5SJ6 Miniature Circuit Breaker, 1-Pole, 16 A, Type B, 400 V AC, 60 V DC, 6 kA Breaking Capacity
Siemens SENTRON 5SJ6 Miniature Circuit Breaker, 1-Pole, 16 A, Type B, 400 V AC, 60 V DC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 521-4759Brand: SiemensManufacturers Part No.: 5SJ6116-6KSSähkönumero: 3223753

€ 26.36

€ 26.36 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 26.36
Add to basket
Siemens
Miniature Circuit Breaker
1
-
16 A
-
Type B
-
-
400 V
-
60 V
-
6kA
DIN Rail
-
SENTRON
-
5SJ6
Screw
IP20
-
-
-
18 mm
90mm
-
EAC, CE, VDE
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 4 A, Type D, 400 V AC, 72 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 4 A, Type D, 400 V AC, 72 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 772-1240Brand: SiemensManufacturers Part No.: 5SY4104-8Sähkönumero: 3224016

€ 42.54

€ 42.54 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 42.54
Add to basket
Siemens
Miniature Circuit Breaker
1
-
4 A
-
Type D
-
-
400 V
-
72 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
-
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60898-1, IEC/EN 60947-2/UL1077
76mm
-
-
-
Siemens SENTRON SENTRON Miniature Circuit Breaker, 1-Pole, 16 A, Type B, 400 V ac AC, 72 V DC, 6 kA Breaking Capacity
Siemens SENTRON SENTRON Miniature Circuit Breaker, 1-Pole, 16 A, Type B, 400 V ac AC, 72 V DC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 189-3188Brand: SiemensManufacturers Part No.: 5SL6116-6Sähkönumero: 3221713

€ 25.73

€ 25.73 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 25.73
Add to basket
Siemens
Miniature Circuit Breaker
1
-
16 A
-
Type B
-
-
400 V ac
-
72 V
-
6kA
DIN Rail
-
SENTRON
-
SENTRON
Screw
IP20
-
-
-
76 mm
90mm
-
VDE, CE
76mm
Toggle Switch
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 25 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 25 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 772-1381Brand: SiemensManufacturers Part No.: 5SY4325-8Sähkönumero: 3224053

€ 131.78

€ 131.78 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 131.78
Add to basket
Siemens
Miniature Circuit Breaker
3
-
25 A
-
Type D
-
-
400 V
-
60 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
-
IP20
-
-
-
53 mm
90mm
-
IEC/EN 60898-1, IEC/EN 60947-2/UL1077
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 400 V ac AC, 72 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 400 V ac AC, 72 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 772-1319Brand: SiemensManufacturers Part No.: 5SY4216-7Sähkönumero: 3222555

€ 85.97

€ 85.97 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 85.97
Add to basket
Siemens
Miniature Circuit Breaker
2
-
16 A
-
Type C
-
-
400 V ac
-
72 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
Combined Terminal
IP20
-
-
-
36 mm
90mm
-
IEC/EN 60898-1, IEC/EN 60947-2/UL1077
76mm
-
-
-
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 32 A, Type B, 400 V AC, 60 V DC, 6 kA Breaking Capacity
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 32 A, Type B, 400 V AC, 60 V DC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 489-6675Brand: SiemensManufacturers Part No.: 5SY6132-6Sähkönumero: 3223456

€ 25.23

€ 25.23 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 25.23
Add to basket
Siemens
Miniature Circuit Breaker
1
-
32 A
-
Type B
-
-
400 V
-
60 V
-
6kA
DIN Rail
-
SENTRON
-
5SY6
-
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60947-2/UL1077, IEC/EN 60898-1
76mm
-
-
-
Siemens SENTRON 5SL4 Miniature Circuit Breaker, 1-Pole, 16 A, Type B, 400 V AC, 72 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SL4 Miniature Circuit Breaker, 1-Pole, 16 A, Type B, 400 V AC, 72 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 202-7107Brand: SiemensManufacturers Part No.: 5SL4116-6Sähkönumero: 3222814

€ 28.61

€ 28.61 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 28.61
Add to basket
Siemens
Miniature Circuit Breaker
1
-
16 A
-
Type B
-
-
400 V
-
72 V
-
10kA
DIN Rail
-
SENTRON
-
5SL4
Screw
IP20
-
-
-
18 mm
90mm
-
CE, VDE
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 32 A, Type C, 400 V ac AC, 60 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 32 A, Type C, 400 V ac AC, 60 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 383-2068Brand: SiemensManufacturers Part No.: 5SY4132-7Sähkönumero: 3222542

€ 29.74

€ 29.74 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 29.74
Add to basket
Siemens
Miniature Circuit Breaker
1
-
32 A
-
Type C
-
-
400 V ac
-
60 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
-
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60947-2/UL1077, IEC/EN 60898-1
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 2-Pole, 4 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 2-Pole, 4 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 772-1284Brand: SiemensManufacturers Part No.: 5SY4204-8Sähkönumero: 3224031

€ 101.66

€ 101.66 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 101.66
Add to basket
Siemens
Miniature Circuit Breaker
2
-
4 A
-
Type D
-
-
400 V
-
60 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
-
IP20
-
-
-
36 mm
90mm
-
IEC/EN 60898-1, IEC/EN 60947-2/UL1077
76mm
-
-
-
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 10 A, Type B, 400 V AC, 6 kA Breaking Capacity
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 10 A, Type B, 400 V AC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 489-6704Brand: SiemensManufacturers Part No.: 5SY6110-6Sähkönumero: 3223448

€ 25.23

€ 25.23 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 25.23
Add to basket
Siemens
Miniature Circuit Breaker
1
-
10 A
-
Type B
-
-
400 V
-
-
-
6kA
DIN Rail
-
SENTRON
-
5SY6
-
-
-
-
-
17.5 mm
-
-
No
76mm
-
-
-
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 20 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 20 A, Type D, 400 V AC, 60 V DC, 10 kA Breaking Capacity
Add to parts list
RS Stock No.: 772-1265Brand: SiemensManufacturers Part No.: 5SY4120-8Sähkönumero: 3224022

€ 31.38

€ 31.38 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 31.38
Add to basket
Siemens
Miniature Circuit Breaker
1
-
20 A
-
Type D
-
-
400 V
-
60 V
-
10kA
DIN Rail
-
SENTRON
-
5SY4
-
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60947-2/UL1077, IEC/EN 60898-1
76mm
-
-
-
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 300 mA, Type C, 400 V AC, 6 kA Breaking Capacity
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 300 mA, Type C, 400 V AC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 521-4888Brand: SiemensManufacturers Part No.: 5SY6114-7Sähkönumero: 3223501

€ 30.25

€ 30.25 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 30.25
Add to basket
Siemens
Miniature Circuit Breaker
1
-
300 mA
-
Type C
-
-
400 V
-
-
-
6kA
DIN Rail
-
SENTRON
-
5SY6
-
IP20
-
-
-
17.5 mm
90mm
-
IEC/EN 60898-1, IEC/EN 60947-2/UL1077
76mm
-
-
-
Schneider Electric Acti9 iC60L Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 100 V, 12 V, 130 V, 220 V, 240 V, 380 V,
Schneider Electric Acti9 iC60L Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 100 V, 12 V, 130 V, 220 V, 240 V, 380 V,
Add to parts list
RS Stock No.: 734-9419Brand: Schneider ElectricManufacturers Part No.: A9F94216Sähkönumero: 3264916

€ 202.06

€ 202.06 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 202.06
Add to basket
Schneider Electric
Miniature Circuit Breaker
2
-
16 A
-
Type C
-
-
100 V, 12 V, 130 V, 220 V, 240 V, 380 V, 400 V, 415 V, 440 V, 60 V
-
12 V
-
15kA
DIN Rail
-
Acti9
-
iC60L
Screw
IP20
-
-
-
36 mm
85mm
-
EN/IEC 60898-1, EN/IEC 60947-2, REACH, RoHS
78.5mm
Toggle Switch
Instantaneous
Thermal Magnetic
Siemens SENTRON SENTRON Miniature Circuit Breaker, 1-Pole, 10 A, Type B, 400 V ac AC, 72 V DC, 6 kA Breaking Capacity
Siemens SENTRON SENTRON Miniature Circuit Breaker, 1-Pole, 10 A, Type B, 400 V ac AC, 72 V DC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 189-3187Brand: SiemensManufacturers Part No.: 5SL6110-6Sähkönumero: 3221707

€ 25.73

€ 25.73 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 25.73
Add to basket
Siemens
Miniature Circuit Breaker
1
-
10 A
-
Type B
-
-
400 V ac
-
72 V
-
6kA
DIN Rail
-
SENTRON
-
SENTRON
Screw
IP20
-
-
-
76 mm
90mm
-
CE, VDE
76mm
Toggle Switch
-
-
Siemens SENTRON 5SL6 Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 400 V AC, 72 V DC, 6 kA Breaking Capacity
Siemens SENTRON 5SL6 Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 400 V AC, 72 V DC, 6 kA Breaking Capacity
Add to parts list
RS Stock No.: 202-7139Brand: SiemensManufacturers Part No.: 5SL6110-7Sähkönumero: 3221708

€ 24.47

€ 24.47 Each (Exc. Vat)

Check stock

1

Available in multiples of 1
1€ 24.47
Add to basket
Siemens
Miniature Circuit Breaker
1
-
10 A
-
Type C
-
-
400 V
-
72 V
-
6kA
DIN Rail
-
SENTRON
-
5SL6
Screw
IP20
-
-
-
18 mm
90mm
-
CE, VDE
76mm
-
-
-

...