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.

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

GENERAL ELECTRIC -

Circuit Breakers: SEHA Series
General Electric SEHA Series circuit breakers are designed to shut-off a power supply when an imbalance between the outgoing and incoming current occurs. They are calibrated at an ambient temperature of 40 degrees C and feature an interchangeable RMS trip unit which provides long-time, short-time and instantaneous trip functions for maximum protection against faulty currents. They come with bolt-on mounting facility for fast installation and are suitable for reverse feed applications. GE power circuit breakers are available in an AC voltage rating of 600VAC on Raptor Supplies.

Style	Model	Amps	Price (inc. GST)
A	SEHA24AT0030	30A	SGD 1219.87	RFQ
A	SEHA24AT0060	60A	SGD 1458.89	RFQ
A	SEHA24AT0100	100A	SGD 1934.06	RFQ
A	SEHA24AT0150	150A	SGD 2333.51	RFQ

GENERAL ELECTRIC -

THLC1 Series, Circuit Breaker

Style	Model	Amps	Price (inc. GST)
A	THLC136015WL	15A	-	RFQ
A	THLC136020WL	20A	SGD 1934.06	RFQ
A	THLC136030WL	30A	SGD 1934.06	RFQ
A	THLC136040WL	40A	SGD 1934.06	RFQ
A	THLC136050WL	50A	SGD 1934.06	RFQ
A	THLC136070WL	70A	SGD 2333.51	RFQ
A	THLC136080WL	80A	SGD 1674.44	RFQ
A	THLC136090WL	90A	-	RFQ
A	THLC136100WL	100A	-	RFQ
A	THLC136150WL	150A	-	RFQ

SQUARE D -

Tandem Mini Circuit Breakers
Square D tandem circuit breakers are compatible for use with panelboards and loadcentres to protect electrical circuits & connected devices against current overloads and short circuits. These single- / double-pole devices feature a thermal-magnetic trip unit that provides both long-time and instantaneous current limiting functions and a plug-in mounting design for ease-of-installation. Choose from a wide variety of these circuit breakers available in 15/15, 15/20, 20/20 and 20/30 amperage ratings on Raptor Supplies.

Style	Model	Amps	Depth	Frame Type	Length	Number Of Poles	Voltage	Width	Price (inc. GST)
A	QOT1515	15/15	2.91"	-	3"	1	-	0.75"	SGD 62.88
A	QOT1520	15/20	2.91"	-	3"	1	-	0.75"	SGD 62.88
B	FYB14020A	20	-	FYB	-	1	277	-	SGD 344.14	RFQ
A	QOT2020	20/20	2.91"	-	3"	1	-	0.75"	SGD 62.88
C	HOMT2020230	20/30	2.98"	-	3.13"	2	-	2"	SGD 144.48
D	FDA32060	60	-	FDA	-	3	240	-	SGD 1455.90	RFQ
E	QE2125VH	125	-	QE	-	2	240	-	SGD 1925.88	RFQ
F	LXI36600G	600	-	LXI	-	3	600	-	-	RFQ
F	NX361000	1000	-	NX	-	3	600	-	-	RFQ

SQUARE D -

Micrologic Circuit Breakers
Square D Micrologic circuit breakers protect against short-circuits & overloads and feature a programmable electronic trip for instantaneous protection against severe overcurrent surges. Selected models have thermal magnetic trip for both long time and instantaneous trip functions. They are equipped with box lug or line & load lug terminals for accommodating wires and panel or plug in mounting style for quick installation. These circuit breakers are available in 1, 2 & 3 pole configurations on Raptor Supplies.

Style	Model	Ac Voltage Rating	Amps	Circuit Breaker Type	Dc Voltage Rating	Depth	Frame Size	Height	Max. Wire Size	Price (inc. GST)
A	QDA221102	240 VAC	110	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 3426.19
B	Q4L2400	240 VAC	400	Standard	Not Rated	5.8"	400A/Q4	11"	600 kcmil (Al), 250 kcmil (Al)	SGD 6466.31
C	QDA220704	240 VAC	70	Standard	Not Rated	3.93"	250A/QD	6.5"	300 kcmil	SGD 3394.62
C	QDA220801	240 VAC	80	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 2701.91
C	QDA220804	240 VAC	80	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 2513.97
A	QDA220904	240 VAC	90	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 3426.19
A	QDA221101	240 VAC	110	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 3770.94
D	QDA32080	240 VAC	80	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 3951.34
D	QDA32090	240 VAC	90	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 2847.71
D	QDA32150	240 VAC	150	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 2332.84
D	QDA32175	240 VAC	175	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 2332.84
E	QDL22090	240 VAC	90	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 2488.62
F	Q4L2250	240 VAC	250	Standard	Not Rated	3.93"	400A/Q4	6.47"	600 kcmil (Al), 250 kcmil (Al)	SGD 6362.23
E	QDL22250	240 VAC	250	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 1746.23
G	QDL32100	240 VAC	100	Standard	Not Rated	3.93"	250A/QD	6.47"	300 kcmil	SGD 1925.88
H	Q4L2300	240 VAC	300	Standard	Not Rated	5.8"	400A/Q4	11"	600 kcmil (Al), 250 kcmil (Al)	SGD 6222.41
C	QDA220701	240 VAC	70	Standard	Not Rated	3.93"	250A/QD	6.5"	300 kcmil	SGD 3426.19
F	Q4L2350	240 VAC	350	Standard	Not Rated	3.93"	400A/Q4	6.47"	600 kcmil (Al), 250 kcmil (Al)	SGD 6057.25
I	LA26200AC	600 VAC	200	Standard	250 VDC	5.8"	400A/LA	11"	600 kcmil (Al), 250 kcmil (Al)	SGD 9709.02
J	HGA260501	600 VAC	50	Standard	250 VDC	3.4"	60A/HG	6.4"	3/0 AWG	SGD 1746.23
J	HGA260152	600 VAC	15	Standard	250 VDC	3.4"	60A/HG	6.4"	3/0 AWG	SGD 1746.23
J	HGA260201	600 VAC	20	Standard	250 VDC	3.4"	60A/HG	6.4"	3/0 AWG	SGD 1746.23
J	HGA260204	600 VAC	20	Standard	250 VDC	3.4"	60A/HG	6.4"	3/0 AWG	SGD 2604.00
J	HGA260301	600 VAC	30	Standard	250 VDC	3.4"	60A/HG	6.4"	3/0 AWG	SGD 1746.23
I	LA26350AB	600 VAC	350	Standard	250 VDC	5.8"	400A/LA	11"	600 kcmil (Al), 250 kcmil (Al)	SGD 11632.47

SQUARE D -

Thermal Magnetic Circuit Breakers, I-Line Mount
Square D PowerPact L Series circuit breakers are designed for installation in emergency power systems and data centres by providing protection from overload or short-circuit conditions. These units feature a non-interchangeable, thermal-magnetic trip for delivering both long-time and instantaneous current limiting functions. The molded case of these breakers accommodate current-carrying components, trip devices and other mechanisms within a very small space. They are further integrated with I-Line style plug-in mounting facility for easy installation and maintenance; suitable for reverse feed applications. Choose from an extensive range of these LA / LH frame circuit breakers available in 2 and 3 pole construction options on Raptor Supplies.

Style	Model	Amps	Circuit Breaker Type	Number Of Poles	Phase	Voltage	Price (inc. GST)
A	LAL36125	125A	-	3	-	600V	-	RFQ
A	LAL36150	150	Standard	3	3	-	SGD 7271.32
B	LAL36175	175A	-	3	-	600V	-	RFQ
C	LAL36200	200	Standard	3	3	-	SGD 7271.32
D	LAL36200MB	200	-	3	-	600	SGD 7271.32
E	LAP36200MB	200	-	3	-	600	-	RFQ
E	LAP36225MB	225	-	3	-	600	-	RFQ
F	LAL36225	225	Standard	3	3	-	SGD 7271.32
G	LAL34225MC	225A	-	3	-	480V	SGD 3647.18
H	LAL26250	250	Standard	2	1	-	SGD 6779.78
I	LAL26250MB	250	-	2	-	600	-	RFQ
E	LAP36250MB	250	-	3	-	600	-	RFQ
D	LAL36250MB	250	-	3	-	600	SGD 7271.32
D	LAL36250-1021	250	-	3	-	600	-	RFQ
D	LAL36250-2100	250	-	3	-	600	SGD 6711.90	RFQ
E	LAL36300-1021	300	-	3	-	600	-	RFQ
D	LAL36300-8041	300	-	3	-	600	SGD 6711.90	RFQ
H	LAL26300	300	Standard	2	1	-	SGD 6779.78
D	LAL36300MB	300	-	3	-	600	SGD 7271.32
E	LAP36300MB	300	-	3	-	600	SGD 7271.32
D	LAL36350-1021	350	-	3	-	600	-	RFQ
H	LAL26350	350	Standard	2	1	-	SGD 8825.74
D	LAL36350-1212	350	-	3	-	600	SGD 6711.90	RFQ
D	LAL36350MB	350	-	3	-	600	SGD 7271.32
D	LAL36400-8041	400	-	3	-	600	SGD 6711.90

EATON -

C Series Complete Molded Case Circuit Breakers
Eaton Series C circuit breakers have GHB frames and are designed for use in power distribution systems to open a circuit under short-circuit or overload conditions. These breakers are suitable for panelboards, switchboards, motor control centers and busway applications. They feature a patented contact design featuring high-speed blow-open action for flexibility and optimum performance. These molded case circuit breakers are available in current ratings up to 100A on Raptor Supplies.

Style	Model	Aic Rating	Amps	Frame Type	Number Of Poles	Voltage	Price (inc. GST)
A	84E1073	-	-	-	-	-	-	RFQ
B	GC3050DL	-	-	-	-	-	SGD 2113.06
C	GHB3050	14kAIC@480V	50A	GHB	3	480V	SGD 999.86
C	GHB3100	14kAIC@480V	100A	GHB	3	480V	SGD 1249.38
C	GHB3090	14kAIC@480V	90A	GHB	3	480V	SGD 1249.38
C	GHB3080	14kAIC@480V	80A	GHB	3	480V	SGD 1249.38
C	GHB3070	14kAIC@480V	70A	GHB	3	480V	SGD 1249.38
C	GHB3060	14kAIC@480V	60A	GHB	3	480V	SGD 999.86
C	GHB3040	14kAIC@480V	40A	GHB	3	480V	SGD 999.86
C	GHB3035	14kAIC@480V	35A	GHB	3	480V	SGD 1075.92
C	GHB3030	14kAIC@480V	30A	GHB	3	480V	SGD 999.86
C	GHB3025	14kAIC@480V	25A	GHB	3	480V	SGD 1017.55
C	GHB3020	14kAIC@480V	20A	GHB	3	480V	SGD 999.86
C	GHB3015	14kAIC@480V	15A	GHB	3	480V	SGD 999.86
D	GHB2100	14kAIC@480V	100A	GHB	2	480V	SGD 922.69
B	GHB2090	14kAIC@480V	90A	GHB	2	480V	SGD 922.69
E	DK3400	65kAIC@240V	400A	DK	3	240V	SGD 4344.10
E	DK3300	65kAIC@240V	300A	DK	3	240V	SGD 4344.10

EATON -

G Series Molded Case Circuit Breakers
Eaton G Series circuit breakers provide overcurrent protection by limiting current flow. These circuit breakers feature a molded case to hold current-carrying components, trip devices and mechanisms integrated in a small space. They have a patented contact design featuring high speed blow-open action for maximum flexibility and performance. These circuit breakers have high repulsion contact arrangement and use arc extinguishing technology for complete current limiting protection. They come with a thermal magnetic trip mechanism that offers both long-time and instantaneous current limiting protection. These molded case circuit breakers are available for a maximum interrupting capacity of 100kA at 480V.

Style	Model
A	84E2480	RFQ
A	84E2770	RFQ

SIEMENS -

SND Series, Bolt On Circuit Breaker

Style	Model	Amps
A	SND69100A	1000A	RFQ
B	SND69100AG	1000A	RFQ
B	SND69100AH	1000A	RFQ
C	SND69100ANGT	1000A	RFQ
C	SND69100ANT	1000A	RFQ
D	SND69120ANGT	1200	RFQ
E	SND69120A	1200A	RFQ
B	SND69120AG	1200A	RFQ
F	SND69120AH	1200A	RFQ
B	SND69120ANGTH	1200A	RFQ
C	SND69120ANT	1200A	RFQ

SIEMENS -

CQD Series, Circuit Breaker

Style	Model	Aic Rating	Amps	Number Of Poles	Voltage	Price (inc. GST)
A	CQD360	-	60	3	480V	SGD 444.53
A	CQD350	-	50	3	480V	SGD 444.53
B	CQD145	-	45	1	277V	SGD 173.33
B	CQD135	-	35	1	277V	SGD 173.33
C	CQD180	14kAIC@277v	80A	1	277V	SGD 280.02
D	CQD120	14kAIC@277v	20A	1	277V	SGD 165.26
E	CQD115	14kAIC@277v	15A	1	277V	SGD 165.26
F	CQD160	14kAIC@277v	60A	1	277V	SGD 173.33
G	CQD125	14kAIC@277v	25A	1	277V	SGD 173.33
H	CQD130	14kAIC@277v	30A	1	277V	SGD 165.26
I	CQD140	14kAIC@277v	40A	1	277V	SGD 165.26
J	CQD150	14kAIC@277v	50A	1	277V	SGD 165.26
K	CQD320	14kAIC@480V	20A	3	480V	SGD 444.53
L	CQD390	14kAIC@480V	90A	3	480V	SGD 504.34
L	CQD380	14kAIC@480V	80A	3	480V	SGD 504.34
M	CQD370	14kAIC@480V	70A	3	480V	SGD 504.34
N	CQD345	14kAIC@480V	45A	3	480V	SGD 549.89
O	CQD340	14kAIC@480V	40A	3	480V	SGD 444.53
P	CQD335	14kAIC@480V	35A	3	480V	SGD 549.89
Q	CQD330	14kAIC@480V	30A	3	480V	SGD 444.53
R	CQD325	14kAIC@480V	25A	3	480V	SGD 549.89
L	CQD3100	14kAIC@480V	100A	3	480V	SGD 504.34
S	CQD315	14kAIC@480V	15A	3	480V	SGD 444.53
T	CQD2100	14kAIC@480V	100A	2	480V	SGD 327.67
U	CQD290	14kAIC@480V	90A	2	480V	SGD 418.44

GENERAL ELECTRIC -

Tey Series, Bolt On Circuit Breakers

Style	Model	Ac Voltage Rating	Amps	Dc Voltage Rating	Depth	Frame Size	Item	Max. Wire Size	Min. Wire Size	Price (inc. GST)
A	TEY390ST12	-	90A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 2022.51	RFQ
A	TEY380ST12	-	80A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 2022.51	RFQ
A	TEY370ST12	-	70A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 2022.51	RFQ
A	TEY360ST12	-	60A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 1411.57	RFQ
A	TEY350ST12	-	50A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 1411.57	RFQ
A	TEY340ST12	-	40A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 1411.57	RFQ
A	TEY330ST12	-	30A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 1411.57	RFQ
A	TEY320ST12	-	20A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 1411.57	RFQ
A	TEY315ST12	-	15A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 1411.57	RFQ
A	TEY3100ST12	-	100A	-	-	-	Bolt On Circuit Breaker	-	-	SGD 2022.51	RFQ
B	TEY115	277 VAC	15	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	10 AWG	14 AWG	SGD 185.05
B	TEY1100	277 VAC	100	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	1/0 AWG	4 AWG	SGD 705.38
B	TEY190	277 VAC	90	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	1/0 AWG	4 AWG	SGD 287.09
B	TEY145	277 VAC	45	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	4 AWG	10 AWG	SGD 201.30
B	TEY180	277 VAC	80	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	1/0 AWG	4 AWG	SGD 705.38
B	TEY160	277 VAC	60	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	1/0 AWG	4 AWG	SGD 201.30
B	TEY150	277 VAC	50	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	4 AWG	10 AWG	SGD 201.30
B	TEY170	277 VAC	70	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	1/0 AWG	4 AWG	SGD 287.09
B	TEY140	277 VAC	40	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	4 AWG	10 AWG	SGD 201.30
B	TEY135	277 VAC	35	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	4 AWG	10 AWG	SGD 193.56
B	TEY130	277 VAC	30	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	10 AWG	14 AWG	SGD 185.05
B	TEY125	277 VAC	25	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	10 AWG	14 AWG	SGD 193.56
B	TEY120	277 VAC	20	125 VDC	3.06"	TEY	Bolt On Circuit Breaker	10 AWG	14 AWG	SGD 185.05
C	TEY360	277/480 VAC	60	Not Rated	3.06"	TEY	Bolt On Circuit Breaker	1/0 AWG	4 AWG	SGD 522.36
D	TEYL3125B	277/480 VAC	125	250 VDC	3"	125A/TEY	Circuit Breaker	2/0 AWG	4 AWG	SGD 3281.65

SIEMENS -

CJD Series, Bolt On Circuit Breaker

Style	Model	Amps	Price (inc. GST)
A	CJD63B200	200	-	RFQ
A	CJD63B300	300	SGD 12001.29
A	CJD63L400	400	-	RFQ

SIEMENS -

JD/JXD Series, Bolt On Circuit Breaker
Siemens JD / JXD Series circuit breakers are ideal for overcurrent protection for commonly used in switchboards, panelboards, motor control centres and other electrical distribution systems. They feature bolt-on mounting that allows easy installation on the mounting rail or bus bar, ensuring a stable connection. These circuit breakers are available in 2 and 3 pole configurations allowing balanced power distribution.

Style	Model	Amps	Frame Type	Number Of Poles	Voltage	Price (inc. GST)
A	JD62B200	200	JD	2	600V	-	RFQ
A	JXD22B200	200	JXD	2	240V	SGD 3264.84
B	JXD23B200	200	JXD	3	240V	SGD 3847.59
A	JXD22B225	225	JXD	2	240V	SGD 3264.84
A	JD62B225	225	JD	2	600V	-	RFQ
B	JXD23B225	225	JXD	3	240V	SGD 3847.59
A	JXD22B250	250	JXD	2	240V	SGD 3264.84
A	JD62B250	250	JD	2	600V	-	RFQ
A	JD62B300	300	JD	2	600V	-	RFQ
A	JXD22B300	300	JXD	2	240V	SGD 3264.84
B	JXD23B350	350	JXD	3	240V	SGD 3847.59
A	JXD22B350	350	JXD	2	240V	SGD 3264.84
A	JXD22B400	400	JXD	2	240V	SGD 3264.84
C	JXD63M400	400	JXD	3	600V	-	RFQ
B	JXD23B400	400	JXD	3	240V	SGD 3847.59
C	JD63B400	400	JD	3	600V	-	RFQ
C	JXD63B400	400	JXD	3	600V	SGD 4757.47

SIEMENS -

NGG Series, Circuit Breaker

Style	Model	Amps	Number Of Poles	Price (inc. GST)
A	NGG2B015L	15	2	SGD 651.82
B	HGG3B015L	15	3	SGD 678.58
B	NGG3B020L	20	3	SGD 819.32
C	NGG1B020L	20	1	SGD 163.93
C	NGG1B030L	30	1	SGD 163.93
A	NGG2B030L	30	2	SGD 651.82
B	NGG3B035L	35	3	SGD 849.39
A	NGG2B040L	40	2	-	RFQ
B	NGG3B045L	45	3	SGD 849.39
D	NGG1B050L	50	1	SGD 163.93
A	NGG2B050L	50	2	SGD 651.82
E	NGG2B070L	70	2	SGD 651.82
E	NGG2B080L	80	2	SGD 651.82
E	NGG2B090L	90	2	SGD 651.82
A	NGG2B100L	100	2	SGD 651.82
A	NGG2B110L	110	2	-	RFQ

SIEMENS -

NGB Series, Bolt On Circuit Breaker

Style	Model	Amps	Number Of Poles	Price (inc. GST)
A	NGB1B015B	15	1	SGD 245.53
A	NGB1B020B	20	1	SGD 245.53
A	NGB1B025B	25	1	SGD 261.67
A	NGB1B030B	30	1	SGD 245.53
B	NGB2B030B	30	2	SGD 556.85
B	NGB2B035B	35	2	SGD 617.44
B	NGB2B040B	40	2	SGD 556.85
B	NGB2B045B	45	2	SGD 617.44
B	NGB2B050B	50	2	SGD 618.10
C	NGB3B060B	60	3	SGD 890.07
B	NGB2B060B	60	2	SGD 618.10
C	NGB3B070B	70	3	SGD 950.88
B	NGB2B070B	70	2	SGD 618.10
B	NGB2B080B	80	2	SGD 618.10
B	NGB2B090B	90	2	SGD 618.10
B	NGB2B100B	100	2	SGD 618.10
B	NGB2B110B	110	2	SGD 1324.67
A	NGB1B110B	110	1	SGD 286.54
C	NGB3B110B	110	3	-	RFQ

SIEMENS -

NXD Series, Bolt On Circuit Breaker

Style	Model	Amps	Number Of Poles	Price (inc. GST)
A	NXD62B100	1000	2	SGD 8182.64
A	NXD62B120	1200	2	-	RFQ
A	NXD63B120	1200	3	SGD 11594.88
A	NXD63B120H	1200	3	-	RFQ

SIEMENS -

LMXD Series, Bolt On Circuit Breaker

Style	Model
A	LMXD63L800	RFQ
A	LMXD63A800	RFQ

SIEMENS -

LGB Series, Bolt On Circuit Breaker

Style	Model	Amps	Number Of Poles	Voltage	Price (inc. GST)
A	LGB3B015B	15	3	480V	SGD 932.97
B	LGB2B025B	25	2	480V	SGD 779.07
C	LGB1B030B	30	1	277V	SGD 383.50
B	LGB2B035B	35	2	480V	-	RFQ
C	LGB1B040B	40	1	277V	SGD 417.55
A	LGB3B045B	45	3	480V	SGD 1133.85
C	LGB1B050B	50	1	277V	SGD 417.55
C	LGB1B060B	60	1	277V	SGD 417.55
A	LGB3B070B	70	3	480V	SGD 1010.58
A	LGB3B080B	80	3	480V	SGD 1010.58
A	LGB3B100B	100	3	480V	SGD 1010.58
A	LGB3B110B	110	3	480V	SGD 1889.95

SIEMENS -

LD/LXD Series, Bolt On Circuit Breaker

Style	Model	Amps	Number Of Poles	Price (inc. GST)
A	LDG2B125L	125	2	SGD 1749.54	RFQ
B	LD63B450	450	3	-	RFQ

SIEMENS -

HQJ Series, Bolt On Circuit Breaker

Style	Model	Amps
A	HQJ23B100	100	RFQ
A	HQJ23B125	125	RFQ
B	HQJ23B150H	150	RFQ
A	HQJ23B175	175	RFQ
A	HQJ23B200	200	RFQ
A	HQJ23B225	200	RFQ

SIEMENS -

LGG Series, Circuit Breaker

Style	Model	Amps	Price (inc. GST)
A	LGG3B015L	15	-	RFQ
A	LGG3B020L	20	SGD 917.27
A	LGG3B030L	30	SGD 917.27
A	LGG3B040L	40	SGD 917.27
A	LGG3B050L	50	SGD 917.27
A	LGG3B060L	60	SGD 917.27
A	LGG3B070L	70	SGD 972.33
A	LGG3B080L	80	SGD 972.33
A	LGG3B090L	90	SGD 972.33
A	LGG3B100L	100	SGD 972.33
A	LGG3B125L	125	SGD 1633.35

SIEMENS -

HMD Series, Bolt On Circuit Breaker

Style	Model	Price (inc. GST)
A	HMX3B800	-	RFQ
B	HMXD63B800H	SGD 14538.68

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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.

Features

General Electric Bolt-On Circuit Breakers:

These General Electric TEYH Series MCCBs have a thermal-magnetic, non-interchangeable trip unit to protect from severe power surges while avoiding tripping on mild overloads.
They also have a bolt-on mounting facility for convenience and compatibility with lug-lug / unit-mount applications.
These UL-listed breakers are available in single, two and three-pole configurations and accommodate universal 10 to 4 AWG size wires.

Square D PowerPacT Circuit Breakers :

These Square D MCCBs have a new front-facing and semi-transparent cover for easy access to accessories.
They have current ratings ranging from 15 to 125A and offer a maximum breaking capacity of 65kA at 480VAC.
These RoHS and REACH-compliant breakers feature dual-break rotating contacts that reduce peak current during a short circuit fault.

Eaton HKD Series Circuit Breakers :

Eaton HKD Series circuit breakers protect against overload and short circuit conditions in 480Y / 277V (three-phase, four-wire) distribution panels.
They have 2-pole construction and can serve two separate circuits or a complete single circuit when short-circuited.

Categories

Brands

Molded Case Circuit Breakers

THLC1 Series, Circuit Breaker

SND Series, Bolt On Circuit Breaker

CQD Series, Circuit Breaker

Tey Series, Bolt On Circuit Breakers

CJD Series, Bolt On Circuit Breaker

NGG Series, Circuit Breaker

NGB Series, Bolt On Circuit Breaker

NXD Series, Bolt On Circuit Breaker

LMXD Series, Bolt On Circuit Breaker

LGB Series, Bolt On Circuit Breaker

LD/LXD Series, Bolt On Circuit Breaker

HQJ Series, Bolt On Circuit Breaker

LGG Series, Circuit Breaker

HMD Series, Bolt On Circuit Breaker

Molded Case Circuit Breakers

Working Mechanism

Features

Frequently Asked Questions

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