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  Circuit Breakers (8,736 items)

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Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: B Cross section of connecting...
Siemens
5SY4440-6
n/a
from £ 64.95*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Ch...
LOVATO Electric
P1MB4PB40
n/a
from £ 17.75*
per piece
Hager NBN440 electrical enclosure accessory (1 offer)
Hager
NBN440
n/a
from £ 46.62*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: B Cross section of c...
Eaton
FAZ-B40/4
n/a
from £ 47.20*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: B Cross section of con...
Eaton
FAZ6-B40/4
n/a
from £ 112.17*
per piece
ABB 2CDS254001R0405 circuit breaker Miniature circuit breaker (2 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
2CDS254001R0405
n/a
from £ 32.85*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: B Cross section of connect...
LS ELECTRIC
BKJ63ND 4P B40
n/a
from £ 15.76*
per piece
Hager MBN440E electrical enclosure accessory (1 offer)
Hager
MBN440E
n/a
from £ 38.34*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: B Cross section of connecting...
Siemens
5SY6440-6
n/a
from £ 64.35*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: B Cross section of connect...
LS ELECTRIC
BKN 4P B40A
n/a
from £ 15.92*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Ch...
LOVATO Electric
P1MB4PC40
n/a
from £ 18.99*
per piece
Hager NCN440 electrical enclosure accessory (1 offer)
Hager
NCN440
n/a
from £ 48.32*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; Poles: 4; Charact: C; 10kA (2 offers) 
Manufacturer: SIEMENS Mounting: for DIN rail mounting Rated voltage: 230/400V AC Operating temperature: -40...70°C Current rating: 40A IP rating: IP20 Characteristics: C Cross section of connecting...
Siemens
5SY4440-7
n/a
from £ 84.30*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: C Cross section of c...
Eaton
FAZ-C40/4
n/a
from £ 47.45*
per piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: C Cross section of con...
Eaton
AZ-4-C40
n/a
from £ 238.88*
per piece
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