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  Circuit Breakers (8,731 items)

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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...
2
ABB
2CDS254001R0405
from £ 32.76*
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...
1
LS ELECTRIC
BKJ63ND 4P B40
from £ 15.91*
per piece
 
 piece
Hager MBN440E electrical enclosure accessory (1 offer)
1
Hager
MBN440E
from £ 38.59*
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...
1
Siemens
5SY6440-6
from £ 64.65*
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...
2
Eaton
FAZ6-B40/4
from £ 112.12*
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...
1
LS ELECTRIC
BKN 4P B40A
from £ 15.68*
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...
1
LOVATO Electric
P1MB4PC40
from £ 18.90*
per piece
 
 piece
Hager NCN440 electrical enclosure accessory (1 offer)
1
Hager
NCN440
from £ 47.31*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: C Cross section of connecting...
3
Siemens
5SY4440-7
from £ 83.15*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; Poles: 4; Charact: C; 15kA (2 offers) 
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...
2
Eaton
FAZ-C40/4
from £ 48.50*
per piece
 
 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...
1
Eaton
AZ-4-C40
from £ 242.31*
per piece
 
 piece
Hager MCN440E electrical enclosure accessory (1 offer)
1
Hager
MCN440E
from £ 25.69*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: C Cross section of connect...
1
LS ELECTRIC
BKN 4P C40A
from £ 15.42*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; 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: 40A IP rating: IP20 Characteristics: C Cross section of connecting...
2
Siemens
5SY6440-7
from £ 81.76*
per piece
 
 piece
Circuit breaker; 230/400VAC; Inom: 40A; Poles: 4; Charact: C; 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: C Cross section of con...
1
Eaton
FAZ6-C40/4
from £ 37.37*
per piece
 
 piece
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