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  Circuit Breakers (8,731 items)

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Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 10kA (1 offer) 
Manufacturer: LOVATO ELECTRIC Mounting: for DIN rail mounting Mechanical durability: 20000 cycles Rated voltage: 230/400V AC Operating temperature: -40...70°C Current rating: 50A IP rating: IP20 Ch...
LOVATO Electric
P1MB4PB50
from £ 35.51*
per piece
from £ 35.51*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 15kA (1 offer) 
Manufacturer: EATON ELECTRIC Mounting: for DIN rail mounting Mechanical durability: 10000 cycles Rated voltage: 230/400V AC Current rating: 50A IP rating: IP20 Characteristics: B Cross section of c...
Eaton
FAZ-B50/4
from £ 84.98*
per piece
from £ 84.98*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 6kA (1 offer) 
Manufacturer: SIEMENS Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -25...55°C Current rating: 50A IP rating: IP20 Characteristics: B Cross section of connecting...
Siemens
5SY6450-6
from £ 76.35*
per piece
from £ 76.35*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 6kA (1 offer) 
Manufacturer: LS ELECTRIC Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -5...40°C Current rating: 50A IP rating: IP20 Characteristics: B Cross section of connect...
LS ELECTRIC
BKJ63ND 4P B50
from £ 17.14*
per piece
from £ 17.14*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 6kA (2 offers) 
Manufacturer: EATON ELECTRIC Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -25...75°C Current rating: 50A IP rating: IP20 Characteristics: B Cross section of con...
Eaton
FAZ6-B50/4
from £ 143.57*
per piece
from £ 143.57*
per piece
Hager MBN450E electrical enclosure accessory (1 offer)
Hager
MBN450E
from £ 46.18*
per piece
from £ 46.18*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 6kA (1 offer) 
Manufacturer: LS ELECTRIC Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -5...40°C Current rating: 50A IP rating: IP20 Characteristics: B Cross section of connect...
LS ELECTRIC
BKN 4P B50A
from £ 17.55*
per piece
from £ 17.55*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 6kA (2 offers) 
Manufacturer: ABB Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -25...55°C Current rating: 50A IP rating: IP20 Electrical life: 20000 cycles Characteristics: B C...
ABB
2CDS254001R0505
from £ 40.21*
per piece
from £ 40.21*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 10kA (1 offer) 
Manufacturer: LOVATO ELECTRIC Mounting: for DIN rail mounting Mechanical durability: 20000 cycles Rated voltage: 230/400V AC Operating temperature: -40...70°C Current rating: 50A IP rating: IP20 Ch...
LOVATO Electric
P1MB4PC50
from £ 35.22*
per piece
from £ 35.22*
per piece
Hager NCN450 electrical enclosure accessory (1 offer)
Hager
NCN450
from £ 49.17*
per piece
from £ 49.17*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 10kA (3 offers) 
Manufacturer: SIEMENS Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -40...70°C Current rating: 50A IP rating: IP20 Characteristics: C Cross section of connecting...
Siemens
5SY4450-7
from £ 100.15*
per piece
from £ 100.15*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 15kA (1 offer) 
Manufacturer: EATON ELECTRIC Mounting: for DIN rail mounting Mechanical durability: 10000 cycles Rated voltage: 230/400V AC Current rating: 50A IP rating: IP20 Characteristics: C Cross section of c...
Eaton
FAZ-C50/4
from £ 83.52*
per piece
from £ 83.52*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 25kA (1 offer) 
Manufacturer: EATON ELECTRIC Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -25...55°C Current rating: 50A IP rating: IP20 Characteristics: C Cross section of con...
Eaton
AZ-4-C50
from £ 245.27*
per piece
from £ 245.27*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 6kA (2 offers) 
Manufacturer: EATON ELECTRIC Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -25...75°C Current rating: 50A IP rating: IP20 Characteristics: C Cross section of con...
Eaton
FAZ6-C50/4
from £ 140.57*
per piece
from £ 140.57*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 6kA (2 offers) 
Manufacturer: SIEMENS Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -25...55°C Current rating: 50A IP rating: IP20 Characteristics: C Cross section of connecting...
Siemens
5SY6450-7
from £ 99.57*
per piece
from £ 99.57*
per piece
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