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  Circuit Breakers (8,736 items)

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Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: A; 10kA (1 offer) 
Manufacturer: SIEMENS Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -40...70°C Current rating: 50A IP rating: IP20 Characteristics: A Cross section of connecting...
Siemens
5SY4450-5
n/a
from £ 142.83*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 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: B Cross section of connecting...
Siemens
5SY4450-6
n/a
from £ 77.77*
per piece
Hager NBN450 electrical enclosure accessory (1 offer)
Hager
NBN450
n/a
from £ 66.51*
per piece
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
n/a
from £ 35.85*
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
n/a
from £ 80.91*
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
n/a
from £ 74.56*
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
n/a
from £ 16.53*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 6kA (1 offer) 
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
n/a
from £ 137.74*
per piece
Hager MBN450E electrical enclosure accessory (1 offer)
Hager
MBN450E
n/a
from £ 45.94*
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
n/a
from £ 17.46*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: B; 6kA (1 offer) 
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
n/a
from £ 40.48*
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
n/a
from £ 35.40*
per piece
Hager NCN450 electrical enclosure accessory (1 offer)
Hager
NCN450
n/a
from £ 49.33*
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
n/a
from £ 100.57*
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
n/a
from £ 81.54*
per piece
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