Molded Case Circuit Breakers | Raptor Supplies Australia

Molded Case Circuit Breakers

Filter

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 -

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.

StyleModelAc Voltage RatingAmpsCircuit Breaker TypeDc Voltage RatingDepthFrame SizeHeightMax. Wire SizePrice (inc. GST)
AQDA221102240 VAC110StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 4139.41
BQ4L2400240 VAC400StandardNot Rated5.8"400A/Q411"600 kcmil (Al), 250 kcmil (Al)A$ 7812.38
CQDA220704240 VAC70StandardNot Rated3.93"250A/QD6.5"300 kcmilA$ 4101.26
CQDA220801240 VAC80StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 3264.36
CQDA220804240 VAC80StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 3037.30
AQDA220904240 VAC90StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 4139.41
AQDA221101240 VAC110StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 4555.92
DQDA32080240 VAC80StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 4773.88
DQDA32090240 VAC90StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 3440.51
DQDA32150240 VAC150StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 2818.46
DQDA32175240 VAC175StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 2818.46
EQDL22090240 VAC90StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 3006.67
FQ4L2250240 VAC250StandardNot Rated3.93"400A/Q46.47"600 kcmil (Al), 250 kcmil (Al)A$ 7686.64
EQDL22250240 VAC250StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 2109.73
GQDL32100240 VAC100StandardNot Rated3.93"250A/QD6.47"300 kcmilA$ 2326.79
HQ4L2300240 VAC300StandardNot Rated5.8"400A/Q411"600 kcmil (Al), 250 kcmil (Al)A$ 7517.71
CQDA220701240 VAC70StandardNot Rated3.93"250A/QD6.5"300 kcmilA$ 4139.41
FQ4L2350240 VAC350StandardNot Rated3.93"400A/Q46.47"600 kcmil (Al), 250 kcmil (Al)A$ 7318.16
ILA26200AC600 VAC200Standard250 VDC5.8"400A/LA11"600 kcmil (Al), 250 kcmil (Al)A$ 11730.12
JHGA260501600 VAC50Standard250 VDC3.4"60A/HG6.4"3/0 AWGA$ 2109.73
JHGA260152600 VAC15Standard250 VDC3.4"60A/HG6.4"3/0 AWGA$ 2109.73
JHGA260201600 VAC20Standard250 VDC3.4"60A/HG6.4"3/0 AWGA$ 2109.73
JHGA260204600 VAC20Standard250 VDC3.4"60A/HG6.4"3/0 AWGA$ 3146.07
JHGA260301600 VAC30Standard250 VDC3.4"60A/HG6.4"3/0 AWGA$ 2109.73
ILA26350AB600 VAC350Standard250 VDC5.8"400A/LA11"600 kcmil (Al), 250 kcmil (Al)A$ 14053.96
EATON -

Quicklag Type Thermal Magnetic Circuit Breakers

StyleModelPrice (inc. GST)
AHQP1010R3-
RFQ
BHQP2100R6-
RFQ
CHQP2100NA$ 1282.93
DHQP2080R6-
RFQ
EHQP2090R3-
RFQ
BHQP2100A$ 1191.45
BHQP2125-
RFQ
EHQP2080R3A$ 995.45
EHQP2090A$ 1428.17
DHQP2090HA$ 2230.80
BHQP2100R3-
RFQ
FHQP3010R3A$ 1528.97
FHQP3010H-
RFQ
GHQP2060R6A$ 369.67
FHQP3015HA$ 290.62
FHQP3015R6A$ 1285.28
HHQP3015HD-
RFQ
FHQP3015R3A$ 1248.60
IHQP3025R3A$ 1248.60
JHQP3015HV-
RFQ
IHQP3025HA$ 1748.05
KHQP3020BA$ 1067.98
KHQP3020R6A$ 1285.28
LHQP3020HDA$ 1058.53
MHQP3030BA$ 1166.00
EATON -

QC Series Thermal Magnetic Circuit Breakers

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
AQC1010S1----
RFQ
BQC2020V---A$ 696.74
CQCHW2020HT----
RFQ
DQC2025T----
RFQ
EQC2030---A$ 109.37
EQC2030S---A$ 1798.65
DQC2025TV---A$ 677.37
FQC2030H---A$ 1371.22
GQC2035H----
RFQ
EQC2030HS---A$ 2469.52
HQCHW2030SV---A$ 2495.43
IQC2025HT---A$ 1626.95
JQC2025S----
RFQ
JQC2025---A$ 116.45
KQC2015T---A$ 768.01
LQC2020T---A$ 774.61
MQC2020S---A$ 1798.65
NQC2015S1----
RFQ
MQC2020---A$ 109.37
OQC3100HV---A$ 3581.18
PQC3100HS---A$ 3720.50
QQC2010---A$ 116.18
RQCHW2050---A$ 351.80
SQCHW2100H---A$ 2899.02
TQCD1040---A$ 256.30
EATON -

QCF Series Thermal Magnetic Circuit Breakers

Eaton QCF Series thermal magnetic circuit breakers combine thermal and magnetic trip mechanisms for quick response against overcurrent conditions enabling the protection of electrical equipment used in industrial and commercial applications. They come in black cases for enhanced visibility and have two threaded steel inserts for front mounting with #6–32 steel screws. These CSA and UL-approved MCCBs feature three position handles (ON, Tripped and OFF) for clear indication of the status and fault identification. They allow cable-in / cable-out wiring configuration for direct connection to MCCB, facilitating easy installation.

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
AQCF3020HT---A$ 1530.60
BQCF2020X75----
RFQ
CQCF1010T---A$ 249.00
DQCF1020S---A$ 1114.04
DQCF1020X150---A$ 200.88
EQCF1030S---A$ 1114.04
FQCF1055---A$ 154.28
GQCF1040S----
RFQ
EQCF1030X150---A$ 200.88
HQCF2015H---A$ 701.44
IQCF2010T---A$ 479.55
HQCF2015HT---A$ 974.54
BQCF2020H---A$ 864.47
JQCF2030HT---A$ 878.23
BQCF2020S---A$ 1259.36
JQCF2030S---A$ 1323.40
CQCF1010S----
RFQ
JQCF2030H----
RFQ
JQCF2030X75----
RFQ
KQCF2050S---A$ 1259.36
LQCF2025H----
RFQ
KQCF2050X75---A$ 443.34
AQCF3015H---A$ 899.87
AQCF3015HT---A$ 1611.17
AQCF3020H---A$ 870.38
EATON -

QCR Series Thermal Magnetic Circuit Breakers

Eaton QCR Series thermal magnetic circuit breakers are used in commercial and industrial applications to protect against overcurrent and short-circuit conditions. These circuit breakers offer a combination of thermal and magnetic trip mechanisms for precise and rapid response to abnormal current events. They feature a compact and space-saving design for various electrical panels and installations. They offer easy installation and maintenance, reducing downtime and operational costs.

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
AQCR2030HT---A$ 1124.27
BQCR1020TV----
RFQ
BQCR1020---A$ 75.44
BQCRH1020T---A$ 210.21
CQCR1045---A$ 202.15
BQCRH1020---A$ 411.21
DQCR2010T----
RFQ
EQCR3025H---A$ 1370.87
FQCRH1015---A$ 444.66
GQCR1025T---A$ 191.22
FQCR1015TV---A$ 193.28
HQCR3020HT----
RFQ
FQCR1015X150---A$ 131.86
IQCR3020H----
RFQ
JQCR1010X150---A$ 131.86
HQCR3015HT----
RFQ
KQCR2060X75----
RFQ
FQCRH1015TV---A$ 378.43
LQCRH2020----
RFQ
MQCR2030T----
RFQ
NQCRH2015---A$ 601.04
NQCR2015HTS----
RFQ
NQCR2015X75----
RFQ
LQCR2020T---A$ 481.93
NQCR2015P---A$ 418.93
EATON -

xEffect Series FRCmM-NA Residual Current Circuit Breakers

StyleModelPrice (inc. GST)
A167102A$ 4447.02
B167701A$ 4298.06
C167698A$ 2509.65
B167125A$ 5027.92
B167699A$ 4298.06
D167693A$ 3065.84
E167695-
RFQ
B167709A$ 4649.89
C167696A$ 2509.65
C167697A$ 2509.65
C167124A$ 2509.65
B167700A$ 4298.06
B167710-
RFQ
B167703A$ 4649.89
B167704A$ 4649.89
B167705A$ 4298.06
B167708A$ 4649.89
B167707A$ 4298.06
B167706A$ 4298.06
F167694A$ 2372.07
G167120A$ 2157.82
B167110A$ 5111.56
C167116-
RFQ
B167104-
RFQ
B167106A$ 5439.48
EATON -

CHQ Series Thermal Magnetic Circuit Breakers

StyleModelPrice (inc. GST)
ACHQ115A$ 29.63
BCHQ235A$ 389.20
CCHQ230CS-
RFQ
DCHQ245A$ 94.29
ECHQ250A$ 72.37
FCHQ225A$ 94.29
GCHQ240CSA$ 412.63
HCHQ230A$ 94.29
ICHQ260A$ 72.37
JCHQ240A$ 72.37
KCHQ220A$ 389.20
LCHQ130-
RFQ
MCHQ150CS-
RFQ
NCHQ140CSA$ 171.72
OCHQ220CS-
RFQ
PCHQ140A$ 39.20
QCHQ145A$ 155.02
RCHQ130CSA$ 180.43
ACHQ115CS-
RFQ
SCHQ120-
RFQ
TCHQ135A$ 139.23
UCHQ250CS-
RFQ
EATON -

CC Molded Case Circuit Breakers

StyleModelPrice (inc. GST)
ACC3150-
RFQ
BCC3200SR02A$ 16153.83
CCC3200SR2D-
RFQ
DCC3200SR01CR1A$ 13621.53
DCC3175SR24AL1-
RFQ
CCC3175SR2DA$ 11927.42
DCC3200SR01AL1A$ 18472.21
ECC3175SR01A$ 16153.83
BCC3125SR24-
RFQ
ECC3100SR01AL2-
RFQ
ECC3125SR01A$ 14103.09
FCC3100XA$ 974.20
BCC3225SR24A$ 11927.42
DCC3200SR24AL1-
RFQ
BCC3200SR24A$ 16153.83
GCC3125SR01AL1A$ 18472.21
GCC3175SR01AL1-
RFQ
BCC3175SR24-
RFQ
CCC3150SR2D-
RFQ
HCC3175NA$ 11053.54
BCC3150SR24A$ 11927.42
ECC3150SR08A$ 16153.83
ECC3150SR02A$ 12270.59
GCC3150SR01AL1A$ 18472.21
CCC3150SR2DAL1A$ 13060.00
EATON -

CHH Series Tenant Main Breakers

StyleModelAmpsVoltagePrice (inc. GST)
ACHH2100H2X100A240VA$ 1830.30
ACHH2125H2X125A240VA$ 1830.30
ACHH2150H2X150A240VA$ 1830.30
BCHH2175H2X175120/240V-
RFQ
BCHH2200H2X200120/240V-
RFQ
EATON -

CH Series Standard Circuit Breakers

StyleModelAmpsVoltagePrice (inc. GST)
ACH280ST---
RFQ
BCH280--A$ 279.81
CCH220HID--A$ 963.40
DCH220M50--A$ 358.61
ECH220SWST--A$ 2127.18
CCH230HID--A$ 1148.29
ECH230SWST---
RFQ
FCH260CS--A$ 157.75
GCH260--A$ 195.96
DCH250M50--A$ 120.84
ACH260ST--A$ 660.35
DCH270M50--A$ 286.37
ACH270ST--A$ 2190.87
HCH290--A$ 331.06
ICH270--A$ 258.57
ACH290ST---
RFQ
JCH3080ST--A$ 1281.99
KCH2110--A$ 636.57
LCH325--A$ 342.98
MCH160ST---
RFQ
NCH120--A$ 95.64
OCH330--A$ 314.80
JCH340ST--A$ 1097.66
JCH350ST---
RFQ
PCH330HID--A$ 2902.29
EATON -

CL Type Thermal Magnetic Circuit Breakers

StyleModelAmpsPrice (inc. GST)
ACL130CS-A$ 24.68
BCL125-A$ 32.56
CCL225-A$ 81.72
DCL230-A$ 71.57
ECL150-A$ 32.56
FCL145--
RFQ
GCL135-A$ 129.43
HCL140CS-A$ 160.69
ICL130-A$ 27.89
JCL120GFCS-A$ 298.75
JCL115GFCS-A$ 304.77
KCL115CS-A$ 24.68
LCL115GF-A$ 252.41
MCL120-A$ 27.89
NCL250-A$ 72.37
OCL250CS-A$ 65.79
PCL235-A$ 81.72
QCL245-A$ 81.72
RCL220CS-A$ 55.80
SCL230CS-A$ 56.70
TCL240CS-A$ 60.96
UCL220-A$ 71.57
VCL215-A$ 72.53
WCL215CS--
RFQ
XCL150CS-A$ 160.69
StyleModelAmpsPrice (inc. GST)
ACSH2175BM-A$ 4018.47
ACSH2175N-A$ 1393.26
ACSH2125N--
RFQ
ACSH2100BM-A$ 4018.47
ACSH2125BM-A$ 4018.47
ACSH2225N-A$ 1393.26
ACSH2225BM-A$ 3852.79
ACSH2100N-A$ 1393.26
ACSH2150N150AA$ 1393.26
ACSH2200N200AA$ 1393.26
EATON -

CSR Series Circuit Breakers

StyleModelAmpsPrice (inc. GST)
ACSRLO2200--
RFQ
ACSRLO2125-A$ 2648.21
ACSRLO2200X300-A$ 2642.23
ACSRLO2225X300-A$ 2793.86
ACSRLO2175-A$ 2663.12
ACSRLO2150X300-A$ 2621.53
ACSRLO2150X36--
RFQ
ACSRLO2175X300-A$ 2624.46
ACSRLO2150-A$ 2642.23
ACSRLO2100X36--
RFQ
ACSRLO2225-A$ 2704.69
ACSRLO2125X300-A$ 2627.43
BCSRLO2100-A$ 2490.65
ACSRLO2100X300-A$ 2582.90
CCSR2225NSR24-A$ 7163.01
CCSR2200NSR24-A$ 6867.66
CCSR2225NSR12--
RFQ
CCSR2175NSR24--
RFQ
DCSR2100-A$ 616.31
CCSR2175NSR12-A$ 6867.66
CCSR2150NSR12--
RFQ
CCSR2150NSR24-A$ 7163.01
CCSR2100NSR01--
RFQ
CCSR2100BM-A$ 2174.30
ECSR2125N125AA$ 811.95
EATON -

CCV Series Tenant Main Breakers

StyleModelAmpsPrice (inc. GST)
ACCVH2125-A$ 1726.38
BCCV2090-A$ 2443.80
CCCV2125-A$ 807.28
DCCV2125Y-A$ 2384.04
ECCV2125SR02-A$ 7237.27
FCCV2125W-A$ 2342.23
ECCV2125SR04-A$ 7237.27
DCCV2100Y--
RFQ
BCCV2125X-A$ 605.09
ECCV2125SR01-A$ 7237.27
ECCV2100SR02-A$ 7237.27
ECCV2100SR04-A$ 7237.27
ECCV2100SR01-A$ 7237.27
FCCV2100W-A$ 2342.23
BCCV2100X-A$ 605.09
ECCV2150SR04--
RFQ
BCCV2090Y-A$ 2505.24
BCCV2090W--
RFQ
BCCV2090X--
RFQ
BCCV2090SR04-A$ 7237.27
BCCV2090SR01--
RFQ
BCCV2090SR02--
RFQ
BCCV2080-A$ 2443.80
BCCV2080X-A$ 2384.04
BCCV2070SR02-A$ 7237.27
EATON -

QC Series GFCI Circuit Breakers

StyleModelAmpsFrame TypeNumber Of PolesVoltagePrice (inc. GST)
AQCHGFEP1025----A$ 7939.99
BQCGFT2050----A$ 615.47
CQCGFT2020----A$ 609.33
BQCGFT2025----A$ 650.87
CQCGFT2030----A$ 609.33
BQCGFT2040----A$ 615.47
DQCGFEP1030W2----A$ 3169.38
EQCHGFEP2030----A$ 7301.44
FQCHGFEP1020----A$ 4580.06
BQCHGFT2020----A$ 6249.11
EQCHGFEP2015-----
RFQ
DQCHGFEP1030----A$ 4602.04
BQCHGFT2025-----
RFQ
GQCGFT1030T1----A$ 2698.36
BQCHGFT2015-----
RFQ
BQCHGFT2030-----
RFQ
HQCHGFEP1015----A$ 4028.35
GQCHGFT1010-----
RFQ
EQCHGFEP2020----A$ 1285.46
BQPGFT1020V----A$ 1860.62
EQCGFEP2015T----A$ 6382.26
DQCGFEP1030W1-----
RFQ
IQCGFEP1020W1----A$ 3305.68
RFQ
FQCGFEP1020W2-----
RFQ
BQCGFT2015----A$ 609.33
EATON -

Quicklag Type GFCI Circuit Breakers

StyleModelPrice (inc. GST)
AQPGFEP2030A$ 3223.05
BQPGFT2030TW1-
RFQ
BQPGFT2015W1A$ 4259.49
BQPGFT2040TW1-
RFQ
BQPGFT2030A$ 2552.66
BQPGFT2025TW1A$ 5100.93
BQPGFT2020A$ 2401.48
BQPGFT2050A$ 3036.56
BQPGFT2025A$ 3384.19
BQPGFT2040TA$ 6863.65
BQPGFT2040W1A$ 4777.64
BQPGFT2040A$ 3036.56
CQPGFEP2040A$ 4095.11
BQPGFT2030W1A$ 3529.57
BQPGFT2050TA$ 4576.83
BQPGFT2050W1A$ 4777.64
BQPHGFEP2015A$ 9576.08
BQPHGFEP1030A$ 4916.68
BQPHGFEP1020A$ 5078.65
BQPHGFT2015A$ 4382.67
BQPHGFEP2030-
RFQ
BQPHGFT2020W1-
RFQ
BQPHGFT2030W1-
RFQ
DQPGFEP2020A$ 1126.25
DQPGFEP2020W1A$ 4789.63
EATON -

NZM Series Motor Protection Circuit Breakers

StyleModelPrice (inc. GST)
ANZMH2-M160-
RFQ
BNZMN2-S125A$ 7356.21
CNZMN1-M80-
RFQ
CNZMN1-S100-
RFQ
ANZMH2-M80A$ 3785.01
ANZMH2-M125A$ 7696.23
DNZMN4-ME875-
RFQ
ENZMN3-ME350A$ 13186.09
ENZMN3-ME450A$ 14362.72
BNZMN2-S160-CNA-
RFQ
BNZMN2-S80-CNAA$ 4134.06
BNZMN2-M160-
RFQ
ANZMH2-M100A$ 5689.82
FNZMN2-ME200-NAA$ 11443.38
BNZMN2-SE220-CNAA$ 13333.63
BNZMN2-S125-CNA-
RFQ
BNZMN2-M200A$ 10388.44
CNZMN1-M63A$ 2712.60
CNZMN1-M100A$ 6778.00
CNZMN1-S63-CNAA$ 6455.24
CNZMN1-M50A$ 2587.41
ANZMH2-ME220-
RFQ
ANZMH2-M200-
RFQ
BNZMN2-M125A$ 12428.88
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$ 75.98
AQOT152015/202.91"-3"1-0.75"A$ 75.98
BFYB14020A20-FYB-1277-A$ 415.78
RFQ
AQOT202020/202.91"-3"1-0.75"A$ 75.98
CHOMT202023020/302.98"-3.13"2-2"A$ 174.55
DFDA3206060-FDA-3240-A$ 1758.98
RFQ
EQE2125VH125-QE-2240-A$ 2326.79
RFQ
FLXI36600G600-LXI-3600--
RFQ
FNX3610001000-NX-3600--
RFQ
GENERAL ELECTRIC -

Molded Case Circuit Breakers, Thermal Magnetic

General Electric TFK Series circuit breakers are designed to protect electrical appliances from short-circuit and overload conditions. These UL-listed breakers feature an interchangeable, thermal-magnetic trip unit that facilitates field-adjustments to provide both long-time and instantaneous current limiting functions. Calibrated at 40 degrees C, these units deliver a maximum interrupting capacity of 22kA @ 480V and current ratings ranging from 80A to 225A. Choose from a wide range of these IEC supplementary protectors available in two- and three-pole configurations on Raptor Supplies.

StyleModelAmpsNumber Of PolesVoltagePrice (inc. GST)
ATFK236080WL80A3600V-
RFQ
ATFK236090WL90A3600V-
RFQ
ATFK236100WL100A3600V-
RFQ
ATFK236110WL110A3600VA$ 6958.91
RFQ
BTFK224125WL125A2480VA$ 2448.00
RFQ
ATFK236125WL125A3600V-
RFQ
BTFK224150WL150A2480VA$ 2448.00
RFQ
ATFK236150WL150A3600V-
RFQ
ATFK236175WL175A3600V-
RFQ
BTFK224200WL200A2480VA$ 2448.00
RFQ
ATFK236200WL200A3600V-
RFQ
BTFK224225WL225A2480VA$ 2448.00
RFQ
ATFK236225WL225A3600V-
RFQ
ATFK236F000225A3600V-
RFQ
ATFK236Y225225A2600V-
RFQ
GENERAL ELECTRIC -

SGHB Series Molded Case Circuit Breakers, MicroVersaTrip

General Electric SGHB Series circuit breakers are designed to withstand high inductive loads for complete protection against overloads. They feature a molded case to hold the current-carrying components, trip devices and all other surge mechanisms in a compact unit. They come with an interchangeable MicroVersaTrip which provides long-time, short-time, instantaneous, ground fault and target trip functions. These UL listed breakers are suitable for reverse feed applications and feature an interrupting capacity of 35kA at 480V. SGHB Series circuit breakers are available in 400 and 600A current ratings on Raptor Supplies.

StyleModelAmpsPrice (inc. GST)
ASGHB36BA0400400A-
RFQ
ASGHB36BC0400400A-
RFQ
ASGHB36BD0400400A-
RFQ
ASGHB36BA0600600A-
RFQ
ASGHB36BB0600600A-
RFQ
ASGHB36BC0600600AA$ 8711.37
RFQ
ASGHB36BD0600600A-
RFQ
GENERAL ELECTRIC -

SGHH Series Bolt-On Circuit Breakers

General Electric SGHH Series circuit breakers are suitable for use with electrical control panels and switchboards for protecting electrical circuits against current overloads and short-circuit conditions. These UL-listed breakers feature an interchangeable RMS trip unit for providing long-time, instantaneous and short-time current limiting functions for reacting against severe power surges, at once, while avoiding tripping on mild overloads. They are further integrated with a bolt-on mounting design for ensuring ease-of-installation and lug terminals for providing maximum conductivity. Choose from an extensive range of these 3-phase, 3-pole circuit breakers available in 400 and 600A current ratings on Raptor Supplies.

StyleModelAmpsPrice (inc. GST)
ASGHH36AT0400400AA$ 9332.07
RFQ
ASGHH36AT0600600AA$ 10524.07
RFQ
12...5354

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.