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  Circuit Breakers (8,716 items)

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Circuit breaker; 230/400VAC; Inom: 40A; Poles: 3; Charact: K; 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: K Cross section of c...
Eaton
FAZ-K40/3
from £ 38.70*
per piece
 
 piece
ABB 2CDS253001R0557 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
2CDS253001R0557
from £ 34.42*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; Poles: 3; Charact: Z; 10kA (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: Z Cross section of c...
Eaton
FAZ-Z40/3
from £ 38.61*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: A Cross section of connecting...
Siemens
5SY4440-5
from £ 109.02*
per piece
 
 piece
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
from £ 60.18*
per piece
 
 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
from £ 16.47*
per piece
 
 piece
Hager
NBN440
from £ 42.40*
per piece
 
 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
from £ 44.07*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: B Cross section of con...
Eaton
FAZ6-B40/4
from £ 100.55*
per piece
 
 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
from £ 30.01*
per piece
 
 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
from £ 14.66*
per piece
 
 piece
Hager
MBN440E
from £ 35.12*
per piece
 
 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
from £ 58.47*
per piece
 
 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
from £ 14.58*
per piece
 
 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
from £ 17.58*
per piece
 
 piece
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