Molded Case Circuit Breakers - Page 8 | Raptor Supplies Australia

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 -

PEF Series Bolt-On Molded Case Circuit Breaker

Square D PEF Series circuit breakers are specially designed to provide industrial and commercial circuit protection against damages caused by overload and short-circuit conditions. These UL-listed devices feature a unique MicroLogic non-interchangeable trip for delivering long-time, short-time & instantaneous current limiting actions. They are integrated with a bolt-on mounting design to ensure ease-of-installation in cramped spaces and provide current ratings up to 2500A at a maximum interrupt capacity of 100kA at 480VAC.

StyleModelAmps
APEF361200LS1200A
RFQ
APEF361200LSG1200A
RFQ
APEF361200LI1200A
RFQ
APEF361600LI1600A
RFQ
APEF361600LIG1600A
RFQ
APEF361600LS1600A
RFQ
APEF361600LSG1600A
RFQ
APEF362000LIG2000A
RFQ
APEF362000LI2000A
RFQ
APEF362000LS2000A
RFQ
APEF362000LSG2000A
RFQ
APEF362500LI2500A
RFQ
APEF36250LSG2500A
RFQ
APEF362500LS2500A
RFQ
SIEMENS -

Circuit Breaker Trip Units, PD Series, Thermal Magnetic Trip

Siemens PD Series circuit breakers are designed for reducing fault currents and fatal electrical shocks. These units feature a non-interchangeable trip for long time and instantaneous (LI) functionalities providing maximum current limiting protection. They feature feed-thru connection and load side lug terminals for ease of installation and secure wiring configuration. These PD frame units deliver a maximum interrupting capacity of 100kA at 480V and are suitable for reverse feed applications. PD Series trip units are available in current ratings ranging between 1200 & 1600A on Raptor Supplies.

StyleModelAmps
APD63B1201200A
RFQ
BPD63B1401400A
RFQ
APD63B1601600A
RFQ
SQUARE D -

Molded Case Circuit Breakers, MA Series

Square D MA Series molded case circuit breakers designed for short-circuit and overcurrent protection in industrial & commercial panelboards. They have a compact M frame design to offer superior performance while requiring minimum panelboard space. These 3 pole, 3 phase circuit breakers feature a non-interchangeable, thermal magnetic trip to provide both long-time & instantaneous current limiting protection and I-Line style plug in mounting for secure connection with panelboards. MA Series breakers are vailable in current ratings ranging from 300A to 700A on Raptor Supplies.

StyleModelAmpsVoltagePrice (inc. GST)
AMA36300300A600V-
RFQ
AMA36350350A600VA$ 14270.05
RFQ
AMA36400400A600V-
RFQ
BMA36450450A600V-
RFQ
CMA36500500A600VA$ 14270.05
CMA36600600A600VA$ 15270.36
RFQ
DMA36700700A600VA$ 15270.36
EMA36800800600A$ 15270.36
RFQ
SQUARE D -

Molded Case Circuit Breakers: LCL Series, Bolt On, 3P

Square D circuit breakers are suitable for limiting let-through currents to protect downstream components in power distribution applications. These LCL Series circuit breakers feature a non-interchangeable thermal magnetic trip that provides both long-time and instantaneous current limiting functions for reacting against severe power surges at once while avoiding tripping on mild overloads. They are further integrated with Feed-Thru mounting configuration which easily adjusts with all kinds of panelboards and switchboards for fast installation and repair services. Choose from a wide range of these 3-pole circuit breakers available in amperage ratings ranging from 300 to 600A on Raptor Supplies.

StyleModelAmpsPrice (inc. GST)
ALCL36300300AA$ 13632.31
BLCL36400400AA$ 16896.60
CLCL36450450A-
RFQ
DLCL36500500AA$ 16896.60
ELCL36600600A-
RFQ
SQUARE D -

KIL Series Circuit Breakers

Square D KIL Series circuit breakers limit let-through current for protecting downstream components & connected circuits and are ideal for installation within switchboards, motor control centres, panelboards, industrial enclosures and busway plug-in units. These 3 phase, feed-thru circuit breakers feature line & load side lug terminals that ensure hassle-free wiring & hazard-proof connections and thermal magnetic trip for long time & instantaneous trip functions. Choose from a wide range of these KIL frame molded case circuit breakers, available in amperage ratings ranging from 125 to 250A on Raptor Supplies.

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
AKIL36125125A3600V-
RFQ
BKIL261501502600A$ 5483.51
RFQ
CKIL36150150A3600VA$ 7875.85
DKIL36175175A3600V-
RFQ
EKIL36200200A3600V-
RFQ
FKIL36225225A3600V-
RFQ
EKIL36250250A3600V-
RFQ
SQUARE D -

KHL Series Circuit Breakers

Square D KHL Series circuit breakers are suitable for installation within switchboards, motor control centres, panelboards, industrial enclosures and busway plug-in units for protecting connected equipment against short circuits & faulty currents. These feed-thru circuit breakers feature line & load side lug terminals that ensure hassle-free wiring and are ideal for applications demanding high interrupting capacity. They come equipped with thermal magnetic trip that provides both long time & instantaneous trip functions for reacting against severe short-circuits at once while avoiding tripping on mild overloads. These 3 pole circuit breakers are available in amperage ratings ranging from 100 to 250A on Raptor Supplies.

StyleModelAmpsVoltagePrice (inc. GST)
AKHL3607070A600VA$ 6855.80
AKHL3608080A600VA$ 6855.80
AKHL36100100A600VA$ 6855.80
RFQ
AKHL36110110A600V-
RFQ
AKHL36125125A600VA$ 6855.80
BKHL36150-1021150600-
RFQ
AKHL36150150A600VA$ 6855.80
AKHL36175175A600VA$ 6855.80
BKHL36200-1027200600-
RFQ
AKHL36200200A600VA$ 6855.80
AKHL36225225A600VA$ 6855.80
CKHL36000M250A600V-
RFQ
AKHL36250250A600VA$ 7183.79
SQUARE D -

KDL Series Circuit Breakers

Square D KDL Series circuit breakers are suitable for installation within switchboards, motor control centres, panelboards, industrial enclosures and busway plug-in units for protecting connected circuits & equipment against short circuits & faulty currents. These feed-thru circuit breakers feature line & load side lug terminals that ensure hassle-free wiring & hazard-proof connections and thermal magnetic trip that provides both long time & instantaneous trip functions for reacting against severe short-circuits at once while avoiding tripping on mild overloads. These 3 pole circuit breakers are available in KDL & KGL frames and amperage ratings ranging from 100 to 225A on Raptor Supplies.

StyleModelAic RatingAmpsFrame TypePrice (inc. GST)
AKDL3210025kAIC@240V100AKDLA$ 2953.63
RFQ
BKDL3212525kAIC@240V125AKDL-
RFQ
CKDL3217525kAIC@240V175AKDL-
RFQ
DKDL3222525kAIC@240V225AKDL-
RFQ
AKDL3211025kAIC@240V110AKDLA$ 2224.01
RFQ
EKDL3215025kAIC@240V150AKDLA$ 2953.63
FKDL3220025kAIC@240V200AKDL-
RFQ
GKGL3215065kAIC@240V150AKGLA$ 3273.20
SIEMENS -

RD Series Molded Case Circuit Breakers

Siemens RD Series circuit breakers are designed for protecting control panels, switchboards and motor control centres against current overloads and short-circuit conditions. These units feature a thermal-magnetic trip unit for providing both long-time and instantaneous current limiting functions. They are further integrated with feed-thru mounting facility and box-lug terminals for ease-of-installation and a secure wiring configuration, respectively. Choose from a wide range of these circuit breakers available in amperage ratings of 1600A, 1800A and 2000A on Raptor Supplies.

StyleModelAmpsPrice (inc. GST)
ARD63B1601600A-
RFQ
ARD63B1801800A-
RFQ
BRD63F2002000AA$ 15003.47
SQUARE D -

Molded Case Circuit Breakers, LA Frame Type

Square D LA Series circuit breakers are primarily designed for automatically opening a circuit under current overloads and short-circuit conditions. These units feature a fixed thermal-magnetic trip, with interrupting ratings of 42kA @ 120VAC, 30kA @ 480VAC and 22kA @ 600 VAC, providing instantaneous and time-delayed functions. The molded case of these C-curve protectors hold the current-carrying components, trip devices and other mechanisms within a very small space. Choose from a wide range of these circuit breakers available in 2- and 3-pole configurations on Raptor Supplies.

StyleModelAmpsNumber Of PolesPhasePrice (inc. GST)
ALA3612512533A$ 9959.69
ALA3615015033A$ 9959.69
ALA3617517533A$ 20200.65
BLA3620020033A$ 9959.69
CLA3622522533A$ 9959.69
DLA3625025033A$ 9959.69
ELA36250-10212503--
RFQ
FLA3630030033A$ 9959.69
ALA26300AC30021A$ 9351.48
ELAB363503503--
RFQ
ELAF363503503--
RFQ
GLA3640040033A$ 9959.69
ALA26400AC40021A$ 9351.48
ELA36400-10214003--
RFQ
ELA36400MT4003--
RFQ
SQUARE D -

Molded Case Circuit Breakers: JGL Series

Square D PowerPact J Series circuit breakers are used for protecting the circuit from excessive current to prevent fire hazard and equipment damage. These devices allow unit mounting with load- and line-side lugs for easy field installation and maintenance services. They are capable of accommodating aluminium or copper cables with sizes ranging from 350 kcmil to 3/0 AWG and can remain insensitive to mild overloads but provide instantaneous current limiting protection when the wire terminals are exposed to faulty current. These MCCBs feature a handle indicator which provides a visual indication of the three positions (ON, OFF and tripped) of the breaker and can be reset by manually pushing the control lever in the desired position. Choose from a wide range of these IEC protectors available in 3-pole design with a standard voltage rating of 600VAC on Raptor Supplies.

StyleModelAmpsMax. Wire SizeMin. Wire SizePrice (inc. GST)
AJGL36000S25AA----
RFQ
BJGL361501504/0 AWG4 AWGA$ 4724.57
CJGL361751754/0 AWG4 AWGA$ 4724.57
AJGL36175AA175--A$ 4984.55
AJGL36175SO175--A$ 5262.37
DJGL36200200350 kcmil3/0 AWGA$ 4724.57
AJGL36200SA200---
RFQ
EJGL36225225350 kcmil3/0 AWGA$ 4724.57
EJGL36250250350 kcmil3/0 AWGA$ 5409.46
AJGL36250CU33X250---
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.

StyleModelAmpsDepthFrame TypeLengthNumber Of PolesVoltageWidthPrice (inc. GST)
AQOT151515/152.91"-3"1-0.75"A$ 68.24
AQOT152015/202.91"-3"1-0.75"A$ 68.24
BFYB14020A20-FYB-1277-A$ 396.48
RFQ
AQOT202020/202.91"-3"1-0.75"A$ 68.24
CHOMT202023020/302.98"-3.13"2-2"A$ 182.39
DFDA3206060-FDA-3240-A$ 1321.99
RFQ
EQE2125VH125-QE-2240-A$ 1723.64
RFQ
FLXI36600G600-LXI-3600--
RFQ
FNX3610001000-NX-3600--
RFQ
GENERAL ELECTRIC -

SKLL Frame Circuit Breaker

StyleModelItem
ASKLL3608L3XXBolt On Circuit Breaker
RFQ
BSKLL3612L3XXMiniature Circuit Breaker
RFQ
BSKLL3612L4XXMiniature Circuit Breaker
RFQ
BSKLL36AT1200Miniature Circuit Breaker
RFQ
StyleModel
AJLL36250M75
RFQ
AJLL36000S25
RFQ
SQUARE D -

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.

StyleModelAmpsPrice (inc. GST)
ALDA36400CU31X400A$ 13111.35
ALDA36400CU33X400A$ 13111.35
ALDA36400U31X400A$ 7920.00
ALDA36400U33X400A$ 8712.00
ALDA36600U31X600A$ 10560.00
ALDA36600U33X600A$ 11616.00
StyleModelAmpsPrice (inc. GST)
ALDL36400CU31X400-
RFQ
ALDL36400U31X400A$ 6864.00
ALDL36600U31X600A$ 8976.00
StyleModelAmpsPrice (inc. GST)
APJP36080U31A800-
RFQ
APJP36100U31A1000A$ 27087.00
SQUARE D -

QBM Series, Circuit Breaker

StyleModelAmpsNumber Of PolesPrice (inc. GST)
AQBM32125TN1253-
RFQ
BQBM22200TN2002A$ 1267.20
GENERAL ELECTRIC -

FB Frame Circuit Breaker

StyleModelAmpsItemNumber Of PolesVoltagePrice (inc. GST)
AFBV16TE015RV15Miniature Circuit Breaker1277A$ 653.71
BFBV36TE015RV15Bolt On Circuit Breaker3600A$ 1753.19
CFBV26TE015RV15Bolt On Circuit Breaker2600A$ 1325.00
CFBH26TE015RV15Bolt On Circuit Breaker2600A$ 4659.57
CFBH36TE020RV20Miniature Circuit Breaker3600A$ 6526.68
CFBH26TE020RV20Bolt On Circuit Breaker2600-
RFQ
DFBH16TE020RV20Bolt On Circuit Breaker1277A$ 1650.85
EFBN36TE020RV20Bolt On Circuit Breaker3600A$ 1969.29
BFBV36TE020RV20Bolt On Circuit Breaker3600A$ 1753.19
AFBV16TE020RV20Miniature Circuit Breaker1277A$ 653.71
CFBV26TE020RV20Bolt On Circuit Breaker2600A$ 1325.00
CFBH36TE025RV25Miniature Circuit Breaker3600A$ 6526.68
CFBN26TE025RV25Bolt On Circuit Breaker2600A$ 1241.15
BFBV36TE025RV25Bolt On Circuit Breaker3600A$ 1753.19
CFBH26TE025RV25Bolt On Circuit Breaker2600A$ 4659.57
CFBV26TE025RV25Bolt On Circuit Breaker2600A$ 1325.00
CFBV26TE030RV30Miniature Circuit Breaker2600A$ 1325.00
CFBH26TE030RV30Bolt On Circuit Breaker2600-
RFQ
BFBV36TE030RV30Bolt On Circuit Breaker3600A$ 1753.19
AFBV16TE030RV30Bolt On Circuit Breaker1277A$ 653.71
CFBH36TE030RV30Bolt On Circuit Breaker3600A$ 6526.68
CFBH26TE035RV35Bolt On Circuit Breaker2600A$ 4659.57
BFBV36TE035RV35Bolt On Circuit Breaker3600A$ 1753.19
CFBH26TE040RV40Bolt On Circuit Breaker2600A$ 4659.57
AFBV16TE040RV40Bolt On Circuit Breaker1277-
RFQ
GENERAL ELECTRIC -

FCN Frame Circuit Breaker

StyleModelAmps
AFCN36TE070R-
RFQ
AFCN36TE015R215
RFQ
AFCN36TE020R220
RFQ
AFCN36TE040R40
RFQ
AFCN36TE080R80
RFQ
AFCN36TE090R90
RFQ
AFCN36TE100R100
RFQ
GENERAL ELECTRIC -

FC Frame Circuit Breaker

StyleModelAmpsPrice (inc. GST)
AFCS36TE015R1-A$ 1320.35
RFQ
AFCS36TE020R120A$ 1320.35
RFQ
AFCS36TE030R130A$ 1320.35
RFQ
AFCS36TE040R140A$ 1320.35
RFQ
AFCS36TE045R145-
RFQ
AFCS36TE050R150-
RFQ
AFCS36TE070R170-
RFQ
AFCS36TE080R180A$ 1320.35
RFQ
AFCS36TE090R190A$ 1320.35
RFQ
AFCS36TE100R1100-
RFQ
GENERAL ELECTRIC -

SGHC Frame Circuit Breaker

StyleModelAmpsItemPrice (inc. GST)
ASGHC3604L3XX-Bolt On Circuit BreakerA$ 9602.79
RFQ
ASGHC3604L4XX400Miniature Circuit BreakerA$ 11418.85
RFQ
ASGHC3604L5XX400Miniature Circuit Breaker-
RFQ
ASGHC3604L7XX400Miniature Circuit Breaker-
RFQ
ASGHC3606L3XX600Miniature Circuit BreakerA$ 10407.23
RFQ
ASGHC3606L4XX600Miniature Circuit Breaker-
RFQ
ASGHC3606L5XX600Miniature Circuit Breaker-
RFQ
ASGHC3606L7XX600Miniature Circuit Breaker-
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.

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.

Frequently Asked Questions

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.