What is the difference between a 2-pole and 3-pole configuration?

The current rating of a 2-pole MCCB is half that of a 3-pole unit for the same frame size.

What type of circuit breakers do Eaton classic MCCBs feature?

These Eaton classic MCCBs come in MB, FCL, NB, LA and HLA variants.

Eaton classic moulded case circuit breakers (MCCBs) protect electrical equipment and systems from short circuits and current overloads.

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Style	Model	Circuit Breaker Type	Voltage	Type	Number Of Poles	Price
A	HLA3600	-	-	-	-	€47,004.34
B	LA3200PR	-	-	-	-	€33,433.89
B	LA3350PR	-	-	-	-	€33,433.89
C	NB3500P	-	-	-	-	-	RFQ
D	FCL3020L	FCL	480V AC	-	3	€16,869.12
D	FCL3090L	FCL	480V AC	-	3	€16,869.12
D	FCL3060L	FCL	480V AC	-	3	€16,869.12
D	FCL3100L	FCL	480V AC	-	3	-	RFQ
D	FCL3070L	FCL	480V AC	-	3	€16,869.12
D	FCL3050L	FCL	480V AC	-	3	€16,869.12
D	FCL3040L	FCL	480V AC	-	3	€16,869.12
D	FCL3080L	FCL	480V AC	-	3	€16,869.12
D	FCL3035L	FCL	480V AC	-	3	€16,869.12
D	FCL3030L	FCL	480V AC	-	3	€16,869.12
D	FCL3015L	FCL	480V AC	-	3	€16,869.12
D	FCL3025L	FCL	480V AC	-	3	€16,869.12
B	LA3175PRW	LA	600V AC/250V DC	-	3	-	RFQ
B	LA3400PRF	LA	600V AC/250V DC	-	3	€11,283.23
B	LA3300PR	LA	600V AC/250V DC	Classic	3	€33,433.89
B	LA3150PRW	LA	600V AC/250V DC	Complete Breaker	3	€22,555.83
B	LA3400PR	LA	600V AC/250V DC	-	3	€33,433.89
B	LA3250PR	LA	600V AC/250V DC	-	3	€33,433.89
B	LA3225PR	LA	600V AC/250V DC	-	3	€33,433.89
C	NB3800P	NB	600V AC/250V DC	-	3	-	RFQ
E	NBDC31200MW	NB	600V AC	-	3	€80,766.67
C	NB3600P	NB	600V AC/250V DC	-	3	-	RFQ
C	NB3800PW	NB	600V AC/250V DC	-	3	-	RFQ
C	NB3500PW	NB	600V AC/250V DC	-	3	-	RFQ
C	NB3400P	NB	600V AC/250V DC	-	3	-	RFQ
C	NB3800PF	NB	600V AC/250V DC	-	3	-	RFQ

Eaton classic MCCBs feature thermal magnetic trips for quick protection against both thermal and magnetic faults.
They have ampere ratings upto 1200A.
These MCCBs come with a 3-pole configuration to decrease the risk of power quality issues and maintain balanced power distribution.