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 30A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P30GA850 Hartland Controls / Littelfuse 1: $73.36 15In Stock 10Expected 4/12/2026 Factory Special Order	Mfr. Part No. HCBY2P30GA850 Mouser Part No 576-HCBY2P30GA850 Factory Special Order	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 30A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	15In Stock 10Expected 4/12/2026	$73.36 $66.18 View $53.33 $51.29 $49.35 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	30 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 30A 2P CIRCUIT BREAKER, LUGS HCBY2P30GG850 Hartland Controls / Littelfuse 1: $72.35 5In Stock Factory Special Order	Mfr. Part No. HCBY2P30GG850 Mouser Part No 576-HCBY2P30GG850 Factory Special Order	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 30A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	5In Stock	$72.35 $66.18 View $46.68 $42.54 $40.96 $39.39 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	30 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 60A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P60GA850 Hartland Controls / Littelfuse 1: $82.58 24In Stock Factory Special Order	Mfr. Part No. HCBY2P60GA850 Mouser Part No 576-HCBY2P60GA850 Factory Special Order	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 60A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	24In Stock	$82.58 $71.90 $66.59 View $54.35 $50.96 $47.57 Quote	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 20A 2P CIRCUIT BREAKER, LUGS HCBY2P20GG850 Hartland Controls / Littelfuse 1: $93.66 37Expected 21/10/2026	Mfr. Part No. HCBY2P20GG850 Mouser Part No 576-HCBY2P20GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 20A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	37Expected 21/10/2026	$93.66 $77.62 $73.51 $70.65 View $69.56 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	20 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 10A 1P CIRCUIT BREAKER, LUGS HCBY1P10GG850 Hartland Controls / Littelfuse 1: $63.47 48On Order	Mfr. Part No. HCBY1P10GG850 Mouser Part No 576-HCBY1P10GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 10A 1P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	48On Order	$63.47 $52.66 $48.58 $44.65 View $43.22 $41.78 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	10 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 10A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P10GA850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P10GA850 Mouser Part No 576-HCBY1P10GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 10A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	10 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 25A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P25GA850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P25GA850 Mouser Part No 576-HCBY1P25GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 25A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	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 30A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P30GA850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P30GA850 Mouser Part No 576-HCBY1P30GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 30A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	30 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 30A 1P CIRCUIT BREAKER, LUGS HCBY1P30GG850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P30GG850 Mouser Part No 576-HCBY1P30GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 30A 1P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	30 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 35A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P35GA850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P35GA850 Mouser Part No 576-HCBY1P35GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 35A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	35 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 35A 1P CIRCUIT BREAKER, LUGS HCBY1P35GG850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P35GG850 Mouser Part No 576-HCBY1P35GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 35A 1P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	35 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 40A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P40GA850 Hartland Controls / Littelfuse 50: $46.47 Non-Stocked	Mfr. Part No. HCBY1P40GA850 Mouser Part No 576-HCBY1P40GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 40A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$46.47 $45.03 $43.60 View Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	40 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 45A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P45GA850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P45GA850 Mouser Part No 576-HCBY1P45GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 45A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	45 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 45A 1P CIRCUIT BREAKER, LUGS HCBY1P45GG850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P45GG850 Mouser Part No 576-HCBY1P45GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 45A 1P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	45 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 50A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P50GA850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P50GA850 Mouser Part No 576-HCBY1P50GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 50A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	50 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 60A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY1P60GA850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P60GA850 Mouser Part No 576-HCBY1P60GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 60A 1P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	60 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 60A 1P CIRCUIT BREAKER, LUGS HCBY1P60GG850 Hartland Controls / Littelfuse 50: $44.65 Non-Stocked	Mfr. Part No. HCBY1P60GG850 Mouser Part No 576-HCBY1P60GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 60A 1P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$44.65 $43.22 $41.78 Quote Quote	Min.: 50 Mult.: 50	HCB	Thermal Magnetic Circuit Breakers	60 A	120 VAC, 240 VAC	1 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 10A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P10GA850 Hartland Controls / Littelfuse 25: $100.98 Non-Stocked	Mfr. Part No. HCBY2P10GA850 Mouser Part No 576-HCBY2P10GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 10A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$100.98 $91.84 $88.82 View Quote	Min.: 25 Mult.: 25	HCB	Thermal Magnetic Circuit Breakers	10 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 15A 2P CIRCUIT BREAKER, LUGS HCBY2P15GG850 Hartland Controls / Littelfuse 25: $72.03 Non-Stocked	Mfr. Part No. HCBY2P15GG850 Mouser Part No 576-HCBY2P15GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 15A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$72.03 $66.18	Min.: 25 Mult.: 25	HCB	Thermal Magnetic Circuit Breakers	15 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 20A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P20GA850 Hartland Controls / Littelfuse 50: $85.05 Non-Stocked	Mfr. Part No. HCBY2P20GA850 Mouser Part No 576-HCBY2P20GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 20A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$85.05 $82.97 View Quote	Min.: 50 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers	20 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 25A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P25GA850 Hartland Controls / Littelfuse 25: $100.98 Non-Stocked	Mfr. Part No. HCBY2P25GA850 Mouser Part No 576-HCBY2P25GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 25A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$100.98 $91.84 $88.82 View Quote	Min.: 25 Mult.: 25	HCB	Thermal Magnetic Circuit Breakers	25 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 25A 2P CIRCUIT BREAKER, LUGS HCBY2P25GG850 Hartland Controls / Littelfuse 25: $91.39 Non-Stocked	Mfr. Part No. HCBY2P25GG850 Mouser Part No 576-HCBY2P25GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 25A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$91.39 $85.05 $82.96 View Quote	Min.: 25 Mult.: 25	HCB	Thermal Magnetic Circuit Breakers	25 A	120 VAC, 240 VAC	2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 120/240V 40A 2P CIRCUIT BREAKER, LUGS HCBY2P40GG850 Hartland Controls / Littelfuse 25: $97.96 Non-Stocked	Mfr. Part No. HCBY2P40GG850 Mouser Part No 576-HCBY2P40GG850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 40A 2P CIRCUIT BREAKER, LUGS Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$97.96 $91.64 $89.53 View Quote	Min.: 25 Mult.: 25	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 50A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P50GA850 Hartland Controls / Littelfuse 25: $100.98 Non-Stocked	Mfr. Part No. HCBY2P50GA850 Mouser Part No 576-HCBY2P50GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 50A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$100.98 $91.84 $88.82 View Quote	Min.: 25 Mult.: 25	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 35A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY3P35GA850 Hartland Controls / Littelfuse 20: $278.12 Non-Stocked	Mfr. Part No. HCBY3P35GA850 Mouser Part No 576-HCBY3P35GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 35A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	Non-Stocked	$278.12 $252.31 View Quote	Min.: 20 Mult.: 20	HCB	Thermal Magnetic Circuit Breakers	35 A	120 VAC, 240 VAC	3 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk

HCB Molded Case Circuit Breakers

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