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

SQUARE D -

RGF Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	RGF36160U41A	1600	€13,732.18
A	RGF36160U31A	1600	-	RFQ
A	RGF36200U41A	2000	-	RFQ

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PLA Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	PLA34080	800	€17,644.78
A	PLA34100	1000	€18,475.94
A	PLA34120	1000	-	RFQ

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PJP Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	PJP36080U31A	800	-	RFQ
A	PJP36100U31A	1000	€15,966.58

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PLL Series, Circuit Breaker

Style	Model	Voltage	Price (ex. VAT)
A	PLL34100	480	€12,967.48	RFQ
A	PLL34100U44A	600	€23,399.53

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Q2L Series, Circuit Breaker

Style	Model	Amps	Number of Poles	Price (ex. VAT)
A	Q2L2100	100	2	€617.91	RFQ
B	Q2L3100	100	3	€974.68	RFQ
B	Q2L3110	110	3	€974.68	RFQ
A	Q2L2125	125	2	-	RFQ
B	Q2L3125	125	3	€974.68	RFQ
A	Q2L2150	150	2	-	RFQ
B	Q2L3150	150	3	-	RFQ
B	Q2L3150H	150	3	€1,372.86	RFQ
B	Q2L3175	175	3	€974.68	RFQ
B	Q2L3200	200	3	€1,460.53	RFQ
A	Q2L2200	200	2	€1,307.16	RFQ
B	Q2L3225H	225	3	€1,166.76	RFQ
B	Q2L3225	225	3	€974.68	RFQ
A	Q2L2225	225	2	€1,039.34	RFQ

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QBP Series, Circuit Breaker

Style	Model	Amps	Number of Poles	Price (ex. VAT)
A	QBP32070TM	70	3	€1,122.89
B	QBP22110TM	110	2	€593.91
B	QBP22125TM	125	2	€522.59

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QDP Series, Circuit Breaker

Style	Model	Amps	Number of Poles	Price (ex. VAT)
A	QDP22070TM	70	2	€973.71	RFQ
A	QDP22080TM	80	2	€973.71
A	QDP22150TM	150	2	€973.71
B	QDP32175TM	175	3	€1,445.61
B	QDP32225TM	225	3	€1,445.61

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QGP Series, Circuit Breaker

Style	Model	Amps	Number of Poles	Price (ex. VAT)
A	QGP22100TM	100	2	€1,372.86
B	QGP32125TM	125	3	-	RFQ
B	QGP32175TM	175	3	€2,181.88
A	QGP22175TM	175	2	€1,372.86
A	QGP22225TM	225	2	€1,372.86

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FAB Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	FAB36015	15	-	RFQ
A	FAB36030	30	€1,307.16	RFQ
A	FAB36050	50	-	RFQ
A	FAB36080	80	-	RFQ

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FCP Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	FCP34060	60	€1,768.56	RFQ
A	FCP34090	90	€1,947.51	RFQ
A	FCP34100	100	-	RFQ

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MJP Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	MJP36600	600	€9,842.76
A	MJP36800	800	€10,265.54

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JJP Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	JJP36200	200	€3,931.86
A	JJP36250	250	-	RFQ

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JLL Series, Circuit Breaker

Style	Model	Price (ex. VAT)
A	JLL36250M75	€3,931.86
A	JLL36000S25	-	RFQ

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LDA Series, Circuit Breaker
Square D LDA Series circuit breakers are used in panelboards, switchboards, electrical distribution systems and motor control centres to protect the electrical circuits from short circuits, overloads and faults. The solid-state protection mechanism on these breakers eliminate the requirement of traditional moving parts with semiconductors and or advanced software algorithms and can interrupt extreme currents at a much faster rate than electromechanical circuits. They come in three pole configurations and can withstand voltages up to 600V.

Style	Model	Amps	Price (ex. VAT)
A	LDA36400CU31X	400	€7,835.24
A	LDA36400CU33X	400	€7,835.24
A	LDA36400U31X	400	€5,520.00
A	LDA36400U33X	400	€5,985.00
A	LDA36600U31X	600	€6,854.68
A	LDA36600U33X	600	€7,835.24

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LDL Series, Circuit Breaker

Style	Model	Amps	Price (ex. VAT)
A	LDL36400CU31X	400	€5,938.33
A	LDL36400U31X	400	€4,875.96
A	LDL36600U31X	600	€5,938.33

EATON -

JG Series Circuit Breakers, Fixed Thermal Magnetic Trip

Style	Model	AIC Rating	Amps	Price (ex. VAT)
A	JGH3250FAG	-	-	€7,357.95
A	JGH3175FAG	-	-	€7,151.66
B	JGE3100FAG	25kAIC@480V	100A	€2,998.96
B	JGE3150FAG	25kAIC@480V	150A	€2,994.60
B	JGE3175FAG	25kAIC@480V	175A	€3,062.31
B	JGE3200FAG	25kAIC@480V	200A	€3,259.80
B	JGE3250FAG	25kAIC@480V	250A	€1,847.46
C	JGS3100FAG	35kAIC@480V	100A	€3,718.92
C	JGS3150FAG	35kAIC@480V	150A	€1,607.61
C	JGS3175FAG	35kAIC@480V	175A	€3,658.46
C	JGS3200FAG	35kAIC@480V	200A	€3,709.76
C	JGS3250FAG	35kAIC@480V	250A	€4,439.26
A	JGH3100FAG	65kAIC@480V	100A	€2,505.28
A	JGH3150FAG	65kAIC@480V	150A	€7,803.80
A	JGH3200FAG	65kAIC@480V	200A	€7,656.94

EATON -

G Series Electronic Molded Case Circuit Breakers

Style	Model	Price (ex. VAT)
A	NGH312032E	€15,570.00
A	NGH312033E	€34,995.92
A	NGH312035E	€38,375.86
A	NGH312036E	€39,912.31
A	NGS312032E	€32,497.03
A	NGS312033E	€28,457.09
A	NGS312035E	€35,120.89

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HDP Series, Circuit Breaker
Square D HDP Series circuit breakers are designed for protecting downstream components from severe inrush currents. They feature a thermal magnetic trip unit that allows both instantaneous and time-delayed functions for maximum overcurrent protection. These 3-pole design circuit breakers have a unique I-line design with lugs load and nut line terminals, providing easy installation and hassle-free wiring configuration. They can accommodate copper or aluminium wires with sizes ranging from 14 - 3/0 AWG, for flexibility, strength and safety. These UL-listed breakers offer bolt-on mounting for installation in both vertical and horizontal positions.

Style	Model	Amps	Price (ex. VAT)
A	HDP36015	15	-	RFQ
A	HDP36020	20	-	RFQ
A	HDP36025	25	-	RFQ
A	HDP36030	30	€854.61
A	HDP36035	35	-	RFQ
A	HDP36040	40	-	RFQ
A	HDP36045	45	-	RFQ
A	HDP36050	50	-	RFQ
A	HDP36060	60	€854.61
A	HDP36070	70	€1,039.34
A	HDP36080	80	-	RFQ
A	HDP36090	90	-	RFQ
A	HDP36100	100	-	RFQ
A	HDP36110	110	€1,604.24	RFQ
A	HDP36125	125	-	RFQ
A	HDP36150	150	-	RFQ

EATON -

FB Series Complete Molded Case Circuit Breakers

Style	Model	Price (ex. VAT)
A	FB2020PL	€10,083.72	RFQ
A	FB3070PL	€12,203.54	RFQ
A	FB3090PL	€12,203.54	RFQ
A	FB3050PL	€12,203.54	RFQ
A	FB3015PL	€12,203.54	RFQ
A	FB3100PL	€1,140.00
A	FB3060PL	€12,203.54	RFQ

WEG -

UBW-Series Shunt Trip Releases

Style	Model	Price (ex. VAT)
A	SHT-UBW1200-D95	€432.00	RFQ
A	SHT-UBW225-E58	€195.85	RFQ
A	SHT-UBW225-E59	€195.85	RFQ
A	SHT-UBW2500-E26	€518.41	RFQ
A	SHT-UBW250-E61	€263.05	RFQ

WEG -

UBW-Series Molded Case Circuit Breakers

Style	Model	Price (ex. VAT)
A	UBW800S-FTU800-3A	€2,688.00	RFQ
A	UBW600L-FTU600-3A	€3,718.40	RFQ
A	UBW225N-FTU20-3A	€297.92	RFQ
A	UBW225N-FTU225-3A	€694.40	RFQ
A	UBW225N-FTU30-3A	€297.92	RFQ
A	UBW225N-FTU40-3A	€297.92	RFQ
A	UBW225N-FTU50-3A	€297.92	RFQ
A	UBW225N-FTU70-3A	€297.92	RFQ
A	UBW2500H-ELSI2500-3A	€15,680.00	RFQ
A	UBW2500L-ELSI1600-3A	€15,635.20	RFQ
A	UBW250H-FTU250-3A	€918.40	RFQ
A	UBW400H-FTU400-3A	€1,657.60	RFQ
A	UBW400L-FTU300-3A	€2,105.60	RFQ
A	UBW400L-FTU400-3A	€2,105.60	RFQ
A	UBW600H-FTU500-3A	€3,136.00	RFQ
A	UBW1200H-ELSI1200-3A	€10,976.00	RFQ
A	UBW225N-FTU150-3A	€694.40	RFQ
A	UBW1200S-ELS1200-3A	€9,542.40	RFQ
A	UBW225H-FTU225-3A	€918.40	RFQ
A	UBW225H-FTU30-3A	€432.32	RFQ
A	UBW225L-FTU150-3A	€1,075.20	RFQ
A	UBW225L-FTU225-3A	€1,075.20	RFQ
A	UBW225L-FTU60-3A	€537.60	RFQ
A	UBW225N-FTU200-3A	€694.40	RFQ
A	UBW225N-FTU80-3A	€326.14	RFQ

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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.

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.

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

RGF Series, Circuit Breaker

PLA Series, Circuit Breaker

PJP Series, Circuit Breaker

PLL Series, Circuit Breaker

Q2L Series, Circuit Breaker

QBP Series, Circuit Breaker

QDP Series, Circuit Breaker

QGP Series, Circuit Breaker

FAB Series, Circuit Breaker

FCP Series, Circuit Breaker

MJP Series, Circuit Breaker

JJP Series, Circuit Breaker

JLL Series, Circuit Breaker

LDL Series, Circuit Breaker

JG Series Circuit Breakers, Fixed Thermal Magnetic Trip

G Series Electronic Molded Case Circuit Breakers

FB Series Complete Molded Case Circuit Breakers

UBW-Series Shunt Trip Releases

UBW-Series Molded Case Circuit Breakers

Molded Case Circuit Breakers

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Frequently Asked Questions

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Molded Case Circuit Breakers

Molded Case Circuit Breakers

Features

Working Mechanism

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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