Circuit Breakers – Mouser Singapore

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HCB Molded Case Circuit Breakers

Hartland Controls/Littelfuse HCB Molded Case Circuit Breakers are for use in residential and commercial applications. The unit-mounted (lug/lug) thermal-magnetic HCB circuit breakers are tested and listed according to UL Standard 489 and CSA Standard C22.2 No. 5-02 for molded case circuit breakers and enclosures. These circuit breakers feature a 10A to 60A and one-, two-, or three-pole reversible lug line/load connection.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Current Rating	Voltage Rating AC	Number of Poles	Actuator	Minimum Operating Temperature	Maximum Operating Temperature	Illuminated	Packaging
Circuit Breakers 120/240V 25A 1P CIRCUIT BREAKER, LUGS HCBY1P25GG850 Hartland Controls / Littelfuse 1: $63.46 44In Stock	Mfr. Part No. HCBY1P25GG850 Mouser Part No 576-HCBY1P25GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 25A 1P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	44In Stock	$63.46 $52.65 $48.57 $41.53 View $38.94 $36.37 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	25 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 40A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P40GA850 Hartland Controls / Littelfuse 1: $125.11 21In Stock	Mfr. Part No. HCBY2P40GA850 Mouser Part No 576-HCBY2P40GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 40A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	21In Stock	$125.11 $103.74 $98.64 $91.46 View $88.50 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	40 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 25A 3P CIRCUIT BREAKER, LUGS HCBY3P25GG850 Hartland Controls / Littelfuse 1: $350.47 11In Stock	Mfr. Part No. HCBY3P25GG850 Mouser Part No 576-HCBY3P25GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 25A 3P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	11In Stock	$350.47 $290.48 $268.00 $221.80 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	25 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 35A 3P CIRCUIT BREAKER, LUGS HCBY3P35GG850 Hartland Controls / Littelfuse 1: $350.47 19In Stock	Mfr. Part No. HCBY3P35GG850 Mouser Part No 576-HCBY3P35GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 35A 3P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	19In Stock	$350.47 $290.48 $267.89 $221.58 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	35 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 35A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P35GA850 Hartland Controls / Littelfuse 1: $125.26 24In Stock	Mfr. Part No. HCBY2P35GA850 Mouser Part No 576-HCBY2P35GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 35A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	24In Stock	$125.26 $103.88 $98.65 $82.32 View $76.89 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	35 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 45A 2P CIRCUIT BREAKER, LUGS HCBY2P45GG850 Hartland Controls / Littelfuse 1: $125.26 15In Stock	Mfr. Part No. HCBY2P45GG850 Mouser Part No 576-HCBY2P45GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 45A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	15In Stock	$125.26 $103.88 $83.11 $83.10 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	45 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 50A 2P CIRCUIT BREAKER, LUGS HCBY2P50GG850 Hartland Controls / Littelfuse 1: $125.22 23In Stock	Mfr. Part No. HCBY2P50GG850 Mouser Part No 576-HCBY2P50GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 50A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	23In Stock	$125.22 $103.89 $97.69 $85.80 View $85.73 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	50 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 45A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P45GA850 Hartland Controls / Littelfuse 1: $125.09 22In Stock Factory Special Order	Mfr. Part No. HCBY2P45GA850 Mouser Part No 576-HCBY2P45GA850 Factory Special Order	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 45A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	22In Stock	$125.09 $103.88 $85.91 View $82.20 $76.77 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	45 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 60A 2P CIRCUIT BREAKER, LUGS HCBY2P60GG850 Hartland Controls / Littelfuse 1: $125.27 4In Stock 25Expected 6/10/2026	Mfr. Part No. HCBY2P60GG850 Mouser Part No 576-HCBY2P60GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 60A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	4In Stock 25Expected 6/10/2026	$125.27 $103.90 $86.05 $78.66 $77.52	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	60 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 15A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P15GA850 Hartland Controls / Littelfuse 1: $63.47 23In Stock	Mfr. Part No. HCBY1P15GA850 Mouser Part No 576-HCBY1P15GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 15A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	23In Stock	$63.47 $52.99 $48.88 $46.12 View $44.85 $43.87 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	15 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 15A 1P CIRCUIT BREAKER, LUGS HCBY1P15GG850 Hartland Controls / Littelfuse 1: $63.47 23In Stock	Mfr. Part No. HCBY1P15GG850 Mouser Part No 576-HCBY1P15GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 15A 1P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	23In Stock	$63.47 $52.99 $50.18 $50.17 View $49.46 $48.04 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	15 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 35A 2P CIRCUIT BREAKER, LUGS HCBY2P35GG850 Hartland Controls / Littelfuse 1: $125.27 1In Stock	Mfr. Part No. HCBY2P35GG850 Mouser Part No 576-HCBY2P35GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 35A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$125.27 $103.90 $91.39 $84.80 View $82.70 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	35 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 10A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P10GA850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P10GA850 Mouser Part No 576-HCBY3P10GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 10A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	10 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 10A 3P CIRCUIT BREAKER, LUGS HCBY3P10GG850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P10GG850 Mouser Part No 576-HCBY3P10GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 10A 3P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	10 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 15A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P15GA850 Hartland Controls / Littelfuse 1: $350.76 1In Stock	Mfr. Part No. HCBY3P15GA850 Mouser Part No 576-HCBY3P15GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 15A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.76 $290.71 $247.18 $240.72	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	15 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 15A 3P CIRCUIT BREAKER, LUGS HCBY3P15GG850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P15GG850 Mouser Part No 576-HCBY3P15GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 15A 3P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	15 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 20A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P20GA850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P20GA850 Mouser Part No 576-HCBY3P20GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 20A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	20 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 20A 3P CIRCUIT BREAKER, LUGS HCBY3P20GG850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P20GG850 Mouser Part No 576-HCBY3P20GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 20A 3P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	20 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 25A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P25GA850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P25GA850 Mouser Part No 576-HCBY3P25GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 25A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	25 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 30A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P30GA850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P30GA850 Mouser Part No 576-HCBY3P30GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 30A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $317.45 $304.83 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	30 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 30A 3P CIRCUIT BREAKER, LUGS HCBY3P30GG850 Hartland Controls / Littelfuse 1: $350.77 2In Stock	Mfr. Part No. HCBY3P30GG850 Mouser Part No 576-HCBY3P30GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 30A 3P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	2In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	30 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 40A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P40GA850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P40GA850 Mouser Part No 576-HCBY3P40GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 40A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	40 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 45A 3P CIRCUIT BREAKER, LUGS HCBY3P45GG850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P45GG850 Mouser Part No 576-HCBY3P45GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 45A 3P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	45 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 50A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P50GA850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P50GA850 Mouser Part No 576-HCBY3P50GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 50A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	50 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 60A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P60GA850 Hartland Controls / Littelfuse 1: $350.77 1In Stock	Mfr. Part No. HCBY3P60GA850 Mouser Part No 576-HCBY3P60GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 60A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	1In Stock	$350.77 $290.73 $278.12 $252.31 View Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	60 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk

HCB Molded Case Circuit Breakers

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