What is the difference between a three-pole and a two-pole circuit breaker?

3-pole circuit breakers are suitable for three-phase supplies, while the 2-pole circuit breaker is ideal for single-phase AC circuits.

Can we connect two wires to one breaker?

Yes, if both wires are rated for an amperage equal to or greater than the breaker's handle rating.

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Eaton C-Series moulded case circuit breaker trip units open the circuit in the event of a thermal overload, short circuit or ground fault.

Filter

Style	Model	Amps	Frame Type	Price (ex. VAT)
A	F0S05CX	-	-	€1,733.46
B	LT9630AA	-	-	€9,796.28
B	LT8320AA	-	-	€9,796.28
C	LT360032	-	-	€4,742.23
D	LEM3350T	-	-	€4,127.66
E	LTF3630T	-	-	€7,340.40
B	LT9500AA	-	-	€9,796.28
F	MT2700TV	-	-	€6,959.23
B	LT9320AA	-	-	€9,796.28
G	LES4600LSV3	-	-	€10,264.58
D	LEM3600TM2	-	-	€5,415.34	RFQ
D	LEG3500T	-	-	€3,143.82	RFQ
D	LEM3600T	-	-	€5,757.05
H	LES3630LSG	-	-	€23,034.06
D	LEM3400T	-	-	€4,127.66
I	JT3125TG	-	-	€1,891.36
J	MEM3800T2	-	-	€6,517.59	RFQ
G	LEP3400T52	-	-	€14,521.07
K	HM2R16	-	-	€464.93
L	MT3450TV	-	-	€8,509.36
F	MT2800TV	-	-	€6,959.23
B	LT7500FA	-	-	€9,796.28
L	MT3350TV	-	-	€8,509.36
F	MT2350T	-	-	€6,959.23
B	LT4500T	-	-	€10,273.65
G	LES3600HMCP	-	-	€8,151.78
L	MT3400TV	-	-	€8,509.36
M	MT3500T	500A	MT	€2,251.54
H	LES3600LSG	600A	LES	-	RFQ
M	MT3600T	600A	MT	€2,251.54
H	LES3600LSIG	600A	LES	-	RFQ
M	MT3800T	800A	MT	€2,251.54
N	MES3800LSG	800A	MES	-	RFQ

Eaton circuit breaker trip units have two / three / four-pole configurations to interrupt up to 3 phases and the neutral phase.
They have thermal magnetic / electronic sensor to detect overloading conditions.
These units protect capacitor banks, welding machines, motors and generators.