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  Circuit Breakers (8,716 items)

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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 £ 32.00*
per piece
Hager NCN450 electrical enclosure accessory (1 offer)
Hager
NCN450
from £ 45.25*
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 £ 93.36*
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 £ 75.02*
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 £ 220.24*
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 £ 124.96*
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 £ 91.14*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 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: C Cross section of connect...
LS ELECTRIC
BKN 4P C50A
from £ 15.28*
per piece
ABB 2CDS254001R0504 circuit breaker Miniature circuit breaker (3 offers) 
System pro M compact S200 miniature circuit breakers are current limiting. They have two different tripping mechanisms, the delayed thermal tripping mechanism for overload protection and the electr...
ABB
2CDS254001R0504
from £ 42.15*
per piece
Hager MCN450E electrical enclosure accessory (1 offer)
Hager
MCN450E
from £ 35.22*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: C; 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: C Cross section of connect...
LS ELECTRIC
BKJ63ND 4P C50
from £ 15.33*
per piece
Hager NDN450 electrical enclosure accessory (1 offer)
Hager
NDN450
from £ 64.60*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: D; 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: D Cross section of connecting...
Siemens
5SY4450-8
from £ 130.27*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: D; 10kA (2 offers) 
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
P1MB4PD50
from £ 32.84*
per piece
Circuit breaker; 230/400VAC; Inom: 50A; Poles: 4; Charact: D; 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: D Cross section of connect...
LS ELECTRIC
BKN 4P D50A
from £ 16.49*
per piece
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