How does a molded case circuit breaker differ from a circuit breaker?

While both molded case circuit breakers and conventional circuit breakers serve the same primary purpose of protecting electrical circuits, MCCBs are a specific type of circuit breaker with a molded case for added durability and protection.

Can MCCBs be reset after tripping?

Once the fault or overload is resolved, you can reset the MCCB to restore power to the circuit.

What is the difference between an MCCB and a miniature circuit breaker (MCB)?

Molded case circuit breakers are designed for higher current ratings and are used in industrial settings with heavy machinery, while MCBs are smaller and designed for residential or light commercial applications with lower current ratings.

Can MCCBs be used in three-phase electrical systems?

Yes, MCCBs are commonly used in three-phase systems. Brands like WEG, Siemens and ABB come in various configurations to suit single-phase or three-phase applications.

How do I select the right MCCB for my specific application?

Selecting the right MCCB involves considering factors such as the system's voltage, current rating, environmental conditions and specific protection requirements.

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Molded Case Circuit Breakers

Molded Case Circuit Breakers

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Molded case circuit breakers protect various electrical circuits and equipment from overcurrents and short circuits. These breakers consist of a molded case housing that encloses the circuit...Read more

SIEMENS -

LMXD Series Bolt-On Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	LMXD63B500	500A	3	AC	LMXD	600V	50 kAIC @ 480V	-	RFQ
A	LMXD63B600	600A	3	AC	LMXD	600V	50 kAIC @ 480V	-	RFQ
B	LMXD63B700	700A	3	AC	LMXD	600V	50 kAIC @ 480V	-	RFQ
C	LMXD63S800A	800A	3	AC	LMXD	600V	50 kAIC @ 480V	€4,016.63
D	LMXD63A800	800A	3	AC	LMXD	600V	-	€4,777.44
D	LMXD63L800	800A	3	AC	LMXD	600V	-	-	RFQ
E	LMXD63B800	800A	3	AC	LMXD	600V	50 kAIC @ 480V	€4,214.57

SIEMENS -

FD6 Series Molded Case Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating
A	FD62B070	70A	2	AC	FD	600V	-	RFQ
B	FD62B080	80A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B090	90A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B100	100A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B110	110A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B125	125A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B150	150A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B175	175A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B200	200A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
B	FD62B225	225A	2	AC	FD	600V	35 kAIC @ 480V	RFQ
A	FD62B250	250A	2	AC	FD	600V	-	RFQ

SIEMENS -

FXD6 Series Molded Case Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	FXD62B200	2	200A	AC	FXD	600V	35 kAIC @ 480V	€1,543.05
B	FXD62B250	2	250A	AC	FXD	600V	35 kAIC @ 480V	€1,601.74
C	FXD62B175	2	175A	AC	FXD	600V	-	€1,543.05
C	FXD62B150	2	150A	AC	FXD	600V	-	€1,543.05
C	FXD62B125	2	125A	AC	FXD	600V	-	€1,388.74
C	FXD62B110	2	110A	AC	FXD	600V	-	€1,543.05
C	FXD62B100	2	100A	AC	FXD	600V	-	€1,543.05
C	FXD62B090	2	90A	AC	FXD	600V	-	€1,543.05
C	FXD62B080	2	80A	AC	FXD	600V	-	€1,543.05
C	FXD62B070	2	70A	AC	FXD	600V	-	-	RFQ
D	FXD62B225	2	225A	AC	FXD	600V	35 kAIC @ 480V	€1,543.05
E	FXD63B250	3	250A	AC	FXD	600V	35 kAIC @ 480V	€1,808.46
F	FXD63S250A	3	250A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
G	FXD63H150	3	150A	AC	FXD	600V	35 kAIC @ 480V	€2,048.89
E	FXD63B200	3	200A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
H	FXD63B225	3	225A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
H	FXD63B175	3	175A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
I	FXD63B150	3	150A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
J	FXD63B125	3	125A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
A	FXD63B110	3	110A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
K	FXD63B100	3	100A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
L	FXD63B090	3	90A	AC	FXD	600V	35 kAIC @ 480V	-	RFQ
M	FXD63B080	3	80A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
N	FXD63B070	3	70A	AC	FXD	600V	35 kAIC @ 480V	€1,701.45
O	FXD63A250	3	250A	AC	FXD	600V	35 kAIC @ 480V	€2,048.89

SIEMENS -

HHFD6 Series Molded Case Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	HHFD63B100	110A	3	AC	HHFD	600V	100 kAIC @ 480V	€3,114.24
B	HHFD63B125	150A	3	AC	HHFD	600V	100 kAIC @ 480V	€3,114.24
C	HHFD63B150	175A	3	AC	HHFD	600V	100 kAIC @ 480V	€3,114.24
D	HHFD63B175	200A	3	AC	HHFD	600V	100 kAIC @ 480V	-	RFQ
E	HHFD63B200	225A	3	AC	HHFD	600V	100 kAIC @ 480V	€3,114.24
F	HHFD63F250	250A	3	AC	HHFD	600V	100 kAIC @ 480V	€2,939.97
G	HHFD63B225	250A	3	AC	HHFD	600V	100 kAIC @ 480V	€3,114.24
H	HHFD63B250	250A	3	AC	HHFD	600V	100 kAIC @ 480V	€3,114.24

SIEMENS -

CFD6 Series Molded Case Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	CFD62B250	2	250A	AC	CFD	600V	-	-	RFQ
B	CFD63A250	3	250A	AC	CFD	600V	200 kAIC @ 480V	-	RFQ
C	CFD63B100	3	100A	AC	CFD	600V	200 kAIC @ 480V	€3,409.33
D	CFD63B125	3	125A	AC	CFD	600V	200 kAIC @ 480V	€3,409.33
E	CFD63B150	3	150A	AC	CFD	600V	200 kAIC @ 480V	-	RFQ
F	CFD63B090	3	90A	AC	CFD	600V	-	€3,409.33
E	CFD63B175	3	175A	AC	CFD	600V	200 kAIC @ 480V	-	RFQ
E	CFD63B200	3	200A	AC	CFD	600V	200 kAIC @ 480V	€3,409.33
G	CFD63S250A	3	250A	AC	CFD	600V	200 kAIC @ 480V	-	RFQ
F	CFD63B080	3	80A	AC	CFD	600V	-	€3,409.33
A	CFD63B110	3	110A	AC	CFD	600V	-	-	RFQ
H	CFD63A150	3	150A	AC	CFD	600V	200 kAIC @ 480V	€2,786.41
I	CFD63B070	3	70A	AC	CFD	600V	200 kAIC @ 480V	-	RFQ
J	CFD63B250	3	250A	AC	CFD	600V	200 kAIC @ 480V	€4,342.90
A	CFD63B225	3	225A	AC	CFD	600V	-	€3,409.33

SIEMENS -

LMD6 Series Circuit Breakers, Interchangable Trip

Style	Model	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	LMD63B600	3	AC	LMD	600V	50 kAIC @ 480V	€4,777.44
B	LMD63B500	3	AC	LMD	600V	50 kAIC @ 480V	€4,777.44
C	LMD63B700	3	AC	LMD	600V	50 kAIC @ 480V	€4,777.44
D	LMD63B800	3	AC	LMD	600V	50 kAIC @ 480V	€5,308.27
E	LMD63F800	3	AC	LMD	600V	50 kAIC @ 480V	-	RFQ

SIEMENS -

CJD6 Series Molded Case Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	CJD63B200	200A	3	AC	CJD	600V	-	-	RFQ
B	CJD63B225	225A	3	AC	CJD	600V	150 kAIC @ 480V	-	RFQ
C	CJD63B250	250A	3	AC	CJD	600V	150 kAIC @ 480V	€7,676.23
A	CJD63B300	300A	3	AC	CJD	600V	-	€7,676.23
C	CJD63B350	350A	3	AC	CJD	600V	150 kAIC @ 480V	€7,676.23
D	CJD63B400	400A	3	AC	CJD	600V	150 kAIC @ 480V	€7,676.23
E	CJD63S400A	400A	3	AC	CJD	600V	150 kAIC @ 480V	-	RFQ
A	CJD63L400	400A	3	AC	CJD	600V	-	-	RFQ

SIEMENS -

ED2 Series Bolt-On Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage	Aic Rating	High Amp Trip Setting	Low Amp Trip Setting	Circuit Breaker Type	Frame Size	Price
A	ED21B070	1	70A	-	-	80A	80A	Standard	125A/ED	€729.28
B	ED21B030	1	30A	120V AC	10 kAIC @ 120V	-	-	-	-	€162.47
C	ED21B015	1	-	120V AC	-	-	-	-	-	€162.47
C	ED21B020	1	-	120V AC	-	-	-	-	-	€162.47
C	ED21B025	1	-	120V AC	-	-	-	-	-	€168.83
C	ED21B110	1	110A	120V AC	-	-	-	-	-	€245.29
B	ED21B060	1	60A	120V AC	10 kAIC @ 120V	-	-	-	-	€168.83
D	ED21B045	1	45A	120V AC	10 kAIC @ 120V	-	-	-	-	€168.83
A	ED21B080	1	80A	-	-	90A	90A	Standard	125A/ED	€729.28
E	ED21B040	1	40A	120V AC	10 kAIC @ 120V	-	-	-	-	€168.83
B	ED21B050	1	50A	120V AC	10 kAIC @ 120V	-	-	-	-	€168.83
B	ED21B100	1	100A	120V AC	10 kAIC @ 120V	-	-	-	-	€205.68
E	ED21B035	1	35A	120V AC	10 kAIC @ 120V	-	-	-	-	€168.83
F	ED22B035	2	35A	240V	-	-	-	-	-	€400.23
F	ED22B080	2	80A	240V	-	-	-	-	-	€615.28
G	ED22B090	2	90A	240V	10 kAIC @ 240V	-	-	-	-	€615.28
F	ED22B070	2	70A	240V	-	-	-	-	-	€615.28
H	ED22B100	2	100A	240V	10 kAIC @ 240V	-	-	-	-	€615.28
I	ED22S100A	2	100A	240V	10 kAIC @ 240V	-	-	-	-	€223.20
F	ED22B025	2	-	240V	-	-	-	-	-	€400.23
F	ED22B060	2	60A	240V	-	-	-	-	-	€386.79
F	ED22B050	2	50A	240V	-	-	-	-	-	€386.79
F	ED22B030	2	-	240V	-	-	-	-	-	€386.79
F	ED22B020	2	-	240V	-	-	-	-	-	€386.79
J	ED22B015	2	15A	240V	10 kAIC @ 240V	-	-	-	-	€386.79

SIEMENS -

ED4 Series Molde Case Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage	Aic Rating	Circuit Breaker Type	Frame Size	Ac Voltage Rating	Phase Connection	Price
A	ED41B100	1	100A	277V	-	-	-	-	-	€307.20
B	ED41B110	1	110A	-	-	Standard	125A/ED	120/277V AC	ABC	€1,750.30
A	ED41B080	1	80A	277V	-	-	-	-	-	€307.20
A	ED41B050	1	50A	277V	-	-	-	-	-	€264.85
A	ED41B040	1	40A	277V	-	-	-	-	-	€264.85
A	ED41B030	1	-	277V	-	-	-	-	-	€248.90
A	ED41B020	1	-	277V	-	-	-	-	-	€248.90
A	ED41B045	1	45A	277V	-	-	-	-	-	€264.85
A	ED41B070	1	70A	277V	-	-	-	-	-	€307.20
A	ED41B015	1	-	277V	-	-	-	-	-	€248.90
A	ED41B090	1	90A	277V	-	-	-	-	-	€307.20
A	ED41B035	1	35A	277V	-	-	-	-	-	€264.85
A	ED41B025	1	-	277V	-	-	-	-	-	€256.60
A	ED41B060	1	60A	277V	-	-	-	-	-	€264.85
C	ED42B100	2	100A	480V	-	-	-	-	-	€718.21
D	ED42S100A	2	100A	480V	18 kAIC @ 240V	-	-	-	-	€288.00
C	ED42B025	2	-	480V	-	-	-	-	-	€685.13
C	ED42B015	2	-	480V	-	-	-	-	-	€668.94
C	ED42B040	2	40A	480V	-	-	-	-	-	€668.94
C	ED42B035	2	35A	480V	-	-	-	-	-	€685.13
C	ED42B080	2	80A	480V	-	-	-	-	-	€718.21
C	ED42B090	2	90A	480V	-	-	-	-	-	€718.21
E	ED42B110	2	110A	480V	18 kAIC @ 480V	-	-	-	-	€718.21
C	ED42B060	2	60A	480V	-	-	-	-	-	€668.94
C	ED42B070	2	70A	480V	-	-	-	-	-	€685.13

SIEMENS -

HB Series Bolt-On Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage	Voltage Type	Frame Type	Price
A	HB1B015	1	-	120V AC	AC	BQ	€109.04
A	HB1B020	1	-	120V AC	AC	BQ	-	RFQ
A	HB1B030	1	-	120V AC	AC	BQ	€109.04
B	HB2B015	2	-	240V	AC	BQ	-	RFQ
B	HB2B020	2	-	240V	AC	BQ	€238.06
B	HB2B040	2	40A	240V	AC	BQ	€272.08
B	HB2B100	2	100A	240V	AC	BQ	€410.76
B	HB2B090	2	90A	240V	AC	BQ	€410.76
B	HB2B080	2	80A	240V	AC	BQ	-	RFQ
B	HB2B070	2	70A	240V	AC	BQ	€410.76
B	HB2B060	2	60A	240V	AC	BQ	€272.08
B	HB2B050	2	50A	240V	AC	BQ	€272.08
B	HB2B030	2	-	240V	AC	BQ	€238.06
C	HB3B070	3	70A	240V	AC	BQ	€653.93
C	HB3B050	3	50A	240V	AC	BQ	€514.23
C	HB3B040	3	40A	240V	AC	BQ	€514.23
C	HB3B030	3	-	240V	AC	BQ	€410.76
C	HB3B015	3	-	240V	AC	BQ	€410.76
C	HB3B020	3	-	240V	AC	BQ	€410.76
C	HB3B060	3	60A	240V	AC	BQ	-	RFQ
C	HB3B080	3	80A	240V	AC	BQ	-	RFQ
C	HB3B090	3	90A	240V	AC	BQ	-	RFQ
C	HB3B100	3	100A	240V	AC	BQ	-	RFQ

SIEMENS -

HEG Series Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	HEG3B040L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
A	HEG3B100L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
B	HEG3B015L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
A	HEG3B025L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
A	HEG3B060L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
C	HEG3B020L	3	-	AC	HEB	600V	65 kAIC @ 480V	€2,419.67
D	HEG3B050L	3	-	AC	HEB	600V	65 kAIC @ 480V	€2,419.67
A	HEG3B070L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
A	HEG3B090L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
E	HEG3B125L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
A	HEG3B030L	3	-	AC	HEB	600V	65 kAIC @ 480V	-	RFQ
F	HEG3B080L	3	80A	AC	HEB	600V	-	-	RFQ

SIEMENS -

HFD6 Series Bolt-On Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	HFD62B200	2	200A	AC	HFD	600V	-	€2,232.20
A	HFD62B250	2	250A	AC	HFD	600V	-	-	RFQ
B	HFD63B250	3	250A	AC	HFD	600V	65 kAIC @ 480V	€2,483.71
C	HFD63F250	3	250A	AC	HFD	600V	65 kAIC @ 480V	-	RFQ
D	HFD63B090	3	90A	AC	HFD	600V	65 kAIC @ 480V	-	RFQ
B	HFD63B100	3	100A	AC	HFD	600V	65 kAIC @ 480V	€2,368.28
A	HFD63B080	3	80A	AC	HFD	600V	-	-	RFQ
B	HFD63B110	3	110A	AC	HFD	600V	65 kAIC @ 480V	€2,368.28
E	HFD63B175	3	175A	AC	HFD	600V	65 kAIC @ 480V	€2,368.28
B	HFD63B200	3	200A	AC	HFD	600V	65 kAIC @ 480V	€2,368.28
B	HFD63B225	3	225A	AC	HFD	600V	65 kAIC @ 480V	€2,368.28
B	HFD63B070	3	70A	AC	HFD	600V	65 kAIC @ 480V	€2,537.53
B	HFD63B125	3	125A	AC	HFD	600V	65 kAIC @ 480V	€2,368.28
B	HFD63B150	3	150A	AC	HFD	600V	65 kAIC @ 480V	€2,368.28

SIEMENS -

HHLD6 Series Molded Case Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	HHLD63B400	400A	3	AC	HHLD	600V	100 kAIC @ 480V	-	RFQ
B	HHLD63B500	500A	3	AC	HHLD	600V	100 kAIC @ 480V	€5,853.48
C	HHLD63B600	600A	3	AC	HHLD	600V	100 kAIC @ 480V	€5,853.48

SIEMENS -

HQJ2 Series Bolt-On Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	HQJ23B100	100A	3	AC	HQJ	240V	-	-	RFQ
B	HQJ23B100H	100A	3	AC	HQJ	240V	100 kAIC @ 240V	-	RFQ
B	HQJ23B125H	125A	3	AC	HQJ	240V	100 kAIC @ 240V	€1,188.00	RFQ
A	HQJ23B125	125A	3	AC	HQJ	240V	-	-	RFQ
C	HQJ23B150H	150A	3	AC	HQJ	240V	-	-	RFQ
D	HQJ23B150	150A	3	AC	HQJ	240V	100 kAIC @ 240V	€1,670.41
B	HQJ23B175H	175A	3	AC	HQJ	240V	100 kAIC @ 240V	€1,188.00	RFQ
A	HQJ23B175	175A	3	AC	HQJ	240V	-	-	RFQ
A	HQJ23B200	200A	3	AC	HQJ	240V	-	-	RFQ
A	HQJ23B225	200A	3	AC	HQJ	240V	-	-	RFQ
B	HQJ23B200H	200A	3	AC	HQJ	240V	100 kAIC @ 240V	-	RFQ
B	HQJ23B225H	225A	3	AC	HQJ	240V	100 kAIC @ 240V	€1,188.00	RFQ

SIEMENS -

JD6 Series Molded Case Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	JD62B400	2	400A	AC	JD	600V	35 kAIC @ 480V	€1,251.00
B	JD62B200	2	200A	AC	JD	600V	-	-	RFQ
B	JD62B250	2	250A	AC	JD	600V	-	-	RFQ
B	JD62B300	2	300A	AC	JD	600V	-	-	RFQ
A	JD62B350	2	350A	AC	JD	600V	35 kAIC @ 480V	€1,251.00
B	JD62B225	2	225A	AC	JD	600V	-	-	RFQ
C	JD63B200	3	200A	AC	JD	600V	35 kAIC @ 480V	-	RFQ
C	JD63B250	3	250A	AC	JD	600V	35 kAIC @ 480V	-	RFQ
C	JD63B300	3	300A	AC	JD	600V	35 kAIC @ 480V	-	RFQ
D	JD63B400	3	400A	AC	JD	600V	-	-	RFQ
C	JD63B225	3	225A	AC	JD	600V	35 kAIC @ 480V	€2,799.42
C	JD63B350	3	350A	AC	JD	600V	35 kAIC @ 480V	-	RFQ

SIEMENS -

BQD Series Bolt-On Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage	Voltage Type	Frame Type	Aic Rating	Price
A	BQD1100	1	100A	277V	AC	BQD	-	€191.15
B	BQD180	1	80A	277V	AC	BQD	-	€191.15
C	BQD120	1	-	277V	AC	BQD	-	€100.48
D	BQD145	1	45A	277V	AC	BQD	-	€128.68
E	BQD115	1	-	277V	AC	BQD	-	€100.48
F	BQD125	1	-	277V	AC	BQD	-	€123.18
G	BQD160	1	60A	277V	AC	BQD	-	€123.18
H	BQD170	1	70A	277V	AC	BQD	-	€191.15
I	BQD190	1	90A	277V	AC	BQD	-	€191.15
J	BQD150	1	50A	277V	AC	BQD	-	€105.66
K	BQD140	1	40A	277V	AC	BQD	-	€105.66
L	BQD135	1	35A	277V	AC	BQD	-	€128.68
M	BQD130	1	-	277V	AC	BQD	-	€100.48
N	BQD270	2	70A	480V	AC	BQD	14 kAIC @ 480V	€212.21
O	BQD230	2	-	480V	AC	BQD	-	€168.83
P	BQD250	2	50A	480V	AC	BQD	14 kAIC @ 480V	€168.83
Q	BQD245	2	45A	480V	AC	BQD	14 kAIC @ 480V	€272.55
R	BQD240	2	40A	480V	AC	BQD	-	€168.83
S	BQD260	2	60A	480V	AC	BQD	14 kAIC @ 480V	€168.83
T	BQD225	2	-	480V	AC	BQD	-	€272.55
U	BQD280	2	80A	480V	AC	BQD	14 kAIC @ 480V	€268.23
V	BQD220	2	-	480V	AC	BQD	-	€168.83
W	BQD290	2	90A	480V	AC	BQD	14 kAIC @ 480V	€1,353.91
X	BQD215	2	-	480V	AC	BQD	-	€168.83
Y	BQD2100	2	100A	480V	AC	BQD	-	€232.08

SIEMENS -

HMD6 Series Molded Case Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	HMD63B500	500A	3	AC	HMD	600V	65 kAIC @ 480V	-	RFQ
B	HMD63B600	600A	3	AC	HMD	600V	65 kAIC @ 480V	€8,498.92
C	HMD63B700	700A	3	AC	HMD	600V	65 kAIC @ 480V	€8,498.92
D	HMD63F800	800A	3	AC	HMD	600V	65 kAIC @ 480V	€7,416.29
E	HMD63B800	800A	3	AC	HMD	600V	65 kAIC @ 480V	€9,443.25

SIEMENS -

CED6 Series Molded Case Circuit Breakers

Style	Model	Number Of Poles	Amps	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	CED62B100	2	100A	AC	CED	600V	-	€1,641.42
A	CED62B040	2	40A	AC	CED	600V	-	-	RFQ
B	CED62B060	2	60A	AC	CED	600V	200 kAIC @ 480V	€1,352.12
C	CED62B125	2	125A	AC	CED	600V	200 kAIC @ 480V	€1,845.94
D	CED63B060	3	60A	AC	CED	600V	200 kAIC @ 480V	€1,598.21
E	CED63B070	3	70A	AC	CED	600V	200 kAIC @ 480V	€2,032.54
F	CED63B080	3	80A	AC	CED	600V	200 kAIC @ 480V	€1,845.94
D	CED63B100	3	100A	AC	CED	600V	200 kAIC @ 480V	€1,845.94
G	CED63B125	3	125A	AC	CED	600V	200 kAIC @ 480V	€2,320.28
H	CED63B020	3	-	AC	CED	600V	-	€1,598.21
I	CED63B015	3	15A	AC	CED	600V	200 kAIC @ 480V	€1,598.21
D	CED63B030	3	30A	AC	CED	600V	200 kAIC @ 480V	€1,441.24
J	CED63B040	3	40A	AC	CED	600V	200 kAIC @ 480V	€1,598.21
K	CED63B050	3	50A	AC	CED	600V	200 kAIC @ 480V	-	RFQ
L	CED63B090	3	90A	AC	CED	600V	200 kAIC @ 480V	€1,845.94
H	CED63B110	3	110A	AC	CED	600V	-	€2,320.28

SIEMENS -

CED6-A Series Molded Case Circuit Breakers

Style	Model	Amps	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	CED63A002	-	3	AC	CED	600V	-	-	RFQ
A	CED63A001	1A	3	AC	CED	600V	-	-	RFQ
B	CED63A003	3A	3	AC	CED	600V	200 kAIC @ 480V	€1,670.41
C	CED63A005	5A	3	AC	CED	600V	200 kAIC @ 480V	€1,670.41
D	CED63A010	10A	3	AC	CED	600V	200 kAIC @ 480V	€1,441.24
E	CED63A025	25A	3	AC	CED	600V	200 kAIC @ 480V	€1,441.24
D	CED63A030	30A	3	AC	CED	600V	200 kAIC @ 480V	€1,670.41
F	CED63A040	40A	3	AC	CED	600V	200 kAIC @ 480V	€1,670.41
G	CED63A050	50A	3	AC	CED	600V	200 kAIC @ 480V	€1,670.41
H	CED63A100	100A	3	AC	CED	600V	200 kAIC @ 480V	€1,670.41
D	CED63A125	125A	3	AC	CED	600V	200 kAIC @ 480V	€2,043.97

SIEMENS -

ND6 Series Molded Case Circuit Breakers, Interchangable Trip

Style	Model	Number Of Poles	Voltage Type	Frame Type	Voltage	Aic Rating	Price
A	ND63B100	3	AC	ND	600V	50 kAIC @ 480V	€8,529.15
B	ND63B900	3	AC	ND	600V	50 kAIC @ 480V	-	RFQ
B	ND63B120	3	AC	ND	600V	50 kAIC @ 480V	-	RFQ

SIEMENS -

HGG Series Circuit Breakers

Style	Model	Amps	Frame Type	Number Of Poles	Voltage Type	Voltage	Price
A	HGG3B015L	15A	NGG	3	AC	600V	€482.26
A	HGG3B020L	20A	HGG	3	AC	600V	€482.26
A	HGG3B030L	30A	HGG	3	AC	600V	€482.26
A	HGG3B040L	40A	HGG	3	AC	600V	€482.26
A	HGG3B050L	50A	HGG	3	AC	600V	€482.26
A	HGG3B060L	60A	HGG	3	AC	600V	€482.26
A	HGG3B070L	70A	HGG	3	AC	600V	€543.46
A	HGG3B080L	80A	HGG	3	AC	600V	€543.46
A	HGG3B090L	90A	HGG	3	AC	600V	€543.46
A	HGG3B100L	100A	HGG	3	AC	600V	€543.46
A	HGG3B125L	125A	HGG	3	AC	600V	€1,025.73

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Molded Case Circuit Breakers

Molded case circuit breakers are designed to prevent the flow of faulty power supplies into sensitive electrical equipment that may cause overloads and short circuits. With current ratings up to 1600A, these units are ideal for isolation applications in large PV systems. Raptor Supplies offers a wide range of these MCCBs from brands like ABB, Square D, Eaton, General Electric and Siemens. Square D circuit breakers come equipped with a thermal-magnetic trip unit which instantly opens under faulty currents and are capable of providing both time-delayed and instantaneous current limiting functions. These units feature an I-line type configuration at the ON end for facilitating bus connections in panelboards and lugs at the OFF end for cable connection. General Electric molded case circuit breakers feature a programmable electronic trip unit which accentuates the toggle when the current exceeds the predetermined value. These breakers come equipped with bolt-on type terminals for easy installation in reverse-feed applications. They are available in 2 and 3 pole options with a maximum voltage rating of 600VAC on Raptor Supplies.

Working Mechanism

Molded case circuit breaker's working mechanism includes following steps:

In the normal state, molded case circuit breakers allow electrical current to flow through the circuit uninterrupted.
When an overcurrent condition occurs, the MCCB's internal sensors detect the excess current flowing through the circuit.
They have two main trip mechanisms: electromagnetic trip and thermal trip.
The electromagnetic trip detects sudden, high-current surges, similar to short circuits, and quickly opens the circuit to cut power.
The thermal trip reacts to prolonged overloads by heating up, causing the MCCB to trip and disconnect the circuit.
Once the trip mechanism is activated, it triggers a mechanical release within the circuit breaker.
Hence, the breaker's contacts move quickly to the open position.
When the contacts are open, the MCCB interrupts the electrical flow, effectively cutting off power to the circuit.
The circuit remains in this disconnected state until manually reset by the user.

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Molded Case Circuit Breakers

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Frequently Asked Questions

How does a molded case circuit breaker differ from a circuit breaker?

Can MCCBs be reset after tripping?

What is the difference between an MCCB and a miniature circuit breaker (MCB)?

Can MCCBs be used in three-phase electrical systems?

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