Molded Case Circuit Breakers - Page 9 | 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

GENERAL ELECTRIC -

SGLC Frame Circuit Breaker

StyleModelAmpsItemPrice (inc. GST)
ASGLC3604L3XX-Bolt On Circuit BreakerA$ 7676.84
RFQ
ASGLC3604L4XX400Miniature Circuit BreakerA$ 8719.14
RFQ
ASGLC3604L5XX400Miniature Circuit Breaker-
RFQ
ASGLC3604L7XX400Miniature Circuit Breaker-
RFQ
ASGLC3606L3XX600Miniature Circuit BreakerA$ 8222.44
RFQ
ASGLC3606L4XX600Miniature Circuit BreakerA$ 9353.49
RFQ
ASGLC3606L5XX600Miniature Circuit BreakerA$ 9938.69
RFQ
ASGLC3606L7XX600Miniature Circuit BreakerA$ 10407.23
RFQ
GENERAL ELECTRIC -

SKHC Frame Circuit Breaker

StyleModelAmpsItemPrice (inc. GST)
ASKHC3612L7XX-Bolt On Circuit Breaker-
RFQ
ASKHC3608L3XX800Miniature Circuit BreakerA$ 13052.13
RFQ
ASKHC3608L4XX800Miniature Circuit Breaker-
RFQ
ASKHC3608L5XX800Miniature Circuit Breaker-
RFQ
ASKHC3608L7XX800Miniature Circuit BreakerA$ 16531.53
RFQ
ASKHC3612L3XX1200Miniature Circuit Breaker-
RFQ
ASKHC3612L4XX1200Miniature Circuit Breaker-
RFQ
ASKHC3612L5XX1200Miniature Circuit Breaker-
RFQ
GENERAL ELECTRIC -

SKLC Frame Circuit Breaker

StyleModelAmpsItemPrice (inc. GST)
ASKLC3608L3XX-Bolt On Circuit Breaker-
RFQ
ASKLC3612L7XX-Bolt On Circuit BreakerA$ 20314.15
RFQ
ASKLC3608L4XX800Miniature Circuit Breaker-
RFQ
ASKLC3608L5XX800Miniature Circuit Breaker-
RFQ
ASKLC3608L7XX800Miniature Circuit Breaker-
RFQ
ASKLC3612L3XX1200Miniature Circuit Breaker-
RFQ
ASKLC3612L4XX1200Miniature Circuit Breaker-
RFQ
ASKLC3612L5XX1200Miniature Circuit Breaker-
RFQ
GENERAL ELECTRIC -

SGLB Frame Circuit Breaker

StyleModelAmps
ASGLB36BB0400400
RFQ
BSGLB36BC0400400
RFQ
BSGLB36BB0600600
RFQ
GENERAL ELECTRIC -

SGLL Frame Circuit Breaker

StyleModelItemPrice (inc. GST)
ASGLL3606L4XXBolt On Circuit Breaker-
RFQ
ASGLL3604L3XXMiniature Circuit Breaker-
RFQ
ASGLL3604L4XXMiniature Circuit BreakerA$ 9938.69
RFQ
GENERAL ELECTRIC -

TEB Frame Circuit Breaker

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
ATEB111010101120A$ 492.15
RFQ
BTEB122015WL152240A$ 866.40
RFQ
ATEB111015151120A$ 492.15
RFQ
BTEB122020WL202240-
RFQ
ATEB111020201120A$ 492.15
RFQ
ATEB111025251120A$ 623.39
RFQ
BTEB122025WL252240-
RFQ
BTEB122030WL302240-
RFQ
ATEB111030301120A$ 623.39
RFQ
BTEB122035WL352240-
RFQ
ATEB111040401120-
RFQ
BTEB122040WL402240-
RFQ
BTEB122045WL452240-
RFQ
BTEB122045452240A$ 866.40
RFQ
ATEB111050501120A$ 623.39
RFQ
BTEB122050WL502240-
RFQ
BTEB122060WL602240-
RFQ
ATEB111060601120A$ 623.39
RFQ
BTEB122Y1001002240A$ 977.53
RFQ
StyleModelAmps
AMJP36600600
RFQ
AMJP36800800
RFQ
GENERAL ELECTRIC -

TKM Frame Circuit Breaker

StyleModelAmps
ATHKMA836400WL400
RFQ
ATKMA836600WL600
RFQ
ATHKMA31000WL1000
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.

StyleModelAmpsFrame TypeNumber Of PolesVoltagePrice (inc. GST)
AJXD22B200200JXD2240VA$ 4102.03
BJXD23B200200JXD3240VA$ 4902.08
AJD62B200200JD2600V-
RFQ
AJXD22B225225JXD2240VA$ 4102.03
BJXD23B225225JXD3240VA$ 4902.08
AJD62B225225JD2600V-
RFQ
AJXD22B250250JXD2240VA$ 4102.03
AJD62B250250JD2600V-
RFQ
AJD62B300300JD2600V-
RFQ
AJXD22B300300JXD2240VA$ 4102.03
AJXD22B350350JXD2240VA$ 4102.03
BJXD23B350350JXD3240VA$ 5194.24
CJD63B400400JD3600V-
RFQ
CJXD63M400400JXD3600V-
RFQ
AJXD22B400400JXD2240VA$ 4102.03
BJXD23B400400JXD3240VA$ 5194.24
CJXD63B400400JXD3600VA$ 5382.31
SIEMENS -

HQJ Series, Bolt On Circuit Breaker

StyleModelAmps
AHQJ23B100100
RFQ
AHQJ23B125125
RFQ
BHQJ23B150H150
RFQ
AHQJ23B175175
RFQ
AHQJ23B200200
RFQ
AHQJ23B225200
RFQ
SIEMENS -

HMD Series, Bolt On Circuit Breaker

StyleModelPrice (inc. GST)
AHMXD63B800HA$ 15438.69
BHMX3B800-
RFQ
GENERAL ELECTRIC -

TMQV Frame Circuit Breaker

StyleModelAmpsNumber Of PolesPrice (inc. GST)
ATMQV22200MM--A$ 1420.04
ATMQV22100MM1002A$ 1420.04
BTMQV321001003A$ 1699.00
ATMQV22125MM1252-
RFQ
BTMQV321251253A$ 1699.00
ATMQV22150MM1502A$ 1420.04
BTMQV321751753A$ 1699.00
BTMQV322002003A$ 1699.00
ATMQV22225MM2252-
RFQ
BTMQV322252253A$ 1699.00
GENERAL ELECTRIC -

TMQD Frame Circuit Breaker

StyleModelAmpsItemNumber Of PolesPrice (inc. GST)
ATMQD22070-Miniature Circuit Breaker-A$ 1325.00
RFQ
BTMQD3207070Miniature Circuit Breaker3-
RFQ
ATMQD22150150Bolt On Circuit Breaker2A$ 1650.85
RFQ
GENERAL ELECTRIC -

THQC Frame Circuit Breaker

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
ATQC2110WL52240A$ 76.16
ATQC2105WL52240A$ 76.16
RFQ
ATQC32010WL103240A$ 261.21
BTHQC1115GFT151120A$ 261.21
RFQ
ATHQC2115WL152240A$ 71.13
BTHQC1115GF151120-
RFQ
BTHQC1120GFT201120A$ 261.21
RFQ
CTHQC2120WL202240A$ 79.05
DTHQC2125WL252240A$ 79.05
BTHQC1130GFT301120A$ 261.21
RFQ
ETHQC2130CC302240A$ 90.99
RFQ
FTHQC2130WL302240A$ 79.05
DTHQC2135WL352240A$ 79.05
GTHQC32045WL453240A$ 194.58
RFQ
HTHQC2145WL452240A$ 79.05
ETHQC2150CC502240A$ 119.91
RFQ
ITHQC2160CC602240A$ 119.91
RFQ
ATHQC2190WL902240-
RFQ
GTHQC32090WL903240A$ 273.78
RFQ
ATHQC21100WL1002240-
RFQ
GENERAL ELECTRIC -

THJK Frame Circuit Breaker

StyleModelAmps
ATHJK636350WL350
RFQ
BTHJK636F000600
RFQ
GENERAL ELECTRIC -

TEC Frame Circuit Breaker

StyleModelAmps
ATEC260033
RFQ
ATEC260077
RFQ
GENERAL ELECTRIC -

TJK Frame Circuit Breaker

StyleModelAmpsNumber Of Poles
ATHJK436150WL1503
RFQ
BTHJK426F0004002
RFQ
GENERAL ELECTRIC -

TFK Frame Circuit Breaker

StyleModelAmps
ATFK236070WL70
RFQ
ATHFK236125WL125
RFQ
GENERAL ELECTRIC -

TFJ Frame Circuit Breaker

StyleModelAmpsPrice (inc. GST)
ATFJ224150150-
RFQ
ATFJ224150WL150-
RFQ
ATFJ224200200A$ 3870.21
RFQ
ATFJ224200WL200-
RFQ
ATFJ224225225-
RFQ
GENERAL ELECTRIC -

TEL Frame Circuit Breaker

StyleModelAmps
ATEL136050WL50
RFQ
ATEL136125WL125
RFQ
GENERAL ELECTRIC -

TED Frame Circuit Breaker

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
ATED124YT100---A$ 961.81
RFQ
BTED134010WL103480A$ 1094.32
CTHED113015151277A$ 543.81
RFQ
BTED134015WL153480A$ 1292.69
BTED136015WL153600-
RFQ
BTHED136015WL153600-
RFQ
BTED134020WL203480A$ 1292.69
BTED134025WL253480A$ 1311.55
BTED134030WL303480A$ 1292.69
BTED134035WL353480A$ 1311.55
BTED134040WL403480A$ 1292.69
CTED113040401277A$ 508.11
RFQ
BTED134045WL453480A$ 1311.55
BTED134050WL503480A$ 1292.69
BTED134060WL603480A$ 1362.97
ATHED124060WL602480-
RFQ
ATHED124070WL702480A$ 1632.12
BTHED136070WL703600A$ 2032.02
BTED134070ST12703480-
RFQ
BTED134070WL703480A$ 1541.36
BTED134080WL803480A$ 1541.36
CTED113080801277A$ 524.83
RFQ
ATHED124080WL802480A$ 1632.12
CTED113090901277A$ 524.83
RFQ
BTED134090WL903480A$ 1541.36
1...8910...54

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.