AC Protection & Motor Control in HVAC Solutions

Littelfuse AC Protection and Motor Control in HVAC Solutions are essential to improve energy efficiency in commercial and industrial buildings. These solutions include fuses, surge protection devices, voltage monitors, transducers, sensors, and time delay relays. Littelfuse AC Protection and Motor Control in HVAC products are designed for control units, rectifiers, inverters, communication interfaces, and user interfaces.

Results: 1.323
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Qty. RoHS ECAD Model Product
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Voltage Rating AC
Fuse Type
Voltage Rating DC
Interrupt Rating
Body Style
Mounting Style
Termination Style
Class
Fuse Size/Group
Indicator Style
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Resistance
Series
Littelfuse Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
59In Stock
130Expected 9/2/2026
Min.: 1
Mult.: 1

Semiconductor Fuses 150 A 500 VAC Fast-Acting Fuses 500 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L50QS
Littelfuse Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
39In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 200 A 500 VAC Fast-Acting Fuses 500 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L50QS
Littelfuse Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
23In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 250 A 500 VAC Fast-Acting Fuses 500 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L50QS
Littelfuse Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
27In Stock
33Expected 9/17/2026
Min.: 1
Mult.: 1

Semiconductor Fuses 300 A 500 VAC Fast-Acting Fuses 500 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L50QS


Littelfuse Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
56In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 600 A 500 VAC Fast-Acting Fuses 500 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L50QS


Littelfuse Industrial & Electrical Fuses 70A 700VAC 700VDC FF L70QS POWR-SPEED
Datasheet
106In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 70 A 700 VAC Fast-Acting Fuses 700 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L70QS
Littelfuse Industrial & Electrical Fuses 150A 700VAC 700VDC FF L70QS POWR-SPEED
Datasheet
18In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 150 A 700 VAC Fast-Acting Fuses 700 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L70QS
Littelfuse Industrial & Electrical Fuses 900V FAST BLOW 800A
Datasheet
3In Stock
Min.: 1
Mult.: 1
Semiconductor Fuses 800 A Fast-Acting Fuses Knife Blade Class aR Fuses 73 Visual Indicator Bulk PSR


Littelfuse Industrial & Electrical Fuses 250A 300VAC 125VDC Class T
Datasheet
16In Stock
27Expected 1/27/2027
Min.: 1
Mult.: 1

Current Limiting Fuses 250 A 300 VAC Fast-Acting Fuses 125 VDC 20 kA Cartridge Fuses Holder Cartridge Class T Fuses Without Indicator Bulk JLLN
Littelfuse Industrial & Electrical Fuses 300A 300VAC 125VDC Class T
Datasheet
70In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 300 A 300 VAC Fast-Acting Fuses 125 VDC 20 kA Cartridge Fuses Holder Cartridge Class T Fuses Without Indicator Bulk JLLN


Littelfuse Industrial & Electrical Fuses 400A 300VAC 125VDC Class T
Datasheet
64In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 400 A 300 VAC Fast-Acting Fuses 125 VDC 20 kA Cartridge Fuses Holder Cartridge Class T Fuses Without Indicator Bulk JLLN


Littelfuse Industrial & Electrical Fuses 600A 300VAC 125VDC Class T
Datasheet
15In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 600 A 300 VAC Fast-Acting Fuses 125 VDC 20 kA Cartridge Fuses Holder Cartridge Class T Fuses Without Indicator Bulk JLLN
Littelfuse Industrial & Electrical Fuses 250A 600VAC 300VDC Class T
Datasheet
19In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 250 A 600 VAC Fast-Acting Fuses 300 VDC 20 kA Cartridge Leaded Fuses Holder Cartridge Class T Fuses Without Indicator Bulk JLLS
Littelfuse Industrial & Electrical Fuses 12A 600VAC 300VDC Slo-Blo
Datasheet
77In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 12 A 600 VAC Fast-Acting Fuses 300 VDC 20 kA, 200 kA Cartridge Fuses Holder Clip Class CC Fuses Without Indicator Bulk KLDR
Littelfuse Industrial & Electrical Fuses 6.25A 600VAC 300VDC Slo-Blo
Datasheet
149In Stock
100Expected 1/5/2027
Min.: 1
Mult.: 1

Current Limiting Fuses 6.25 A 600 VAC Fast-Acting Fuses 300 VDC 20 kA, 200 kA Cartridge Fuses Holder Clip Class CC Fuses Without Indicator Bulk KLDR
Littelfuse Industrial & Electrical Fuses .5A 600VAC 600VDC Midget
Datasheet
294In Stock
Min.: 1
Mult.: 1

Circuit Protection Fuses 500 mA 600 VAC Fast-Acting Fuses 600 VDC 100 kA Cartridge Fuses Holder Cartridge Without Indicator Bulk 8.16 Ohms KLKD
Littelfuse Industrial & Electrical Fuses .1A 600VAC 300VDC Fast Acting
Datasheet
131In Stock
Min.: 1
Mult.: 1

Circuit Protection Fuses 100 mA 600 VAC Fast-Acting Fuses 300 VDC 200 kA Cartridge Fuses Holder Clip Class CC Fuses 5AG Without Indicator Bulk 79.33 Ohms KLKR
Littelfuse Industrial & Electrical Fuses 20A 600VAC 300VDC Fast Acting
Datasheet
1.270In Stock
Min.: 1
Mult.: 1

Circuit Protection Fuses 20 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Cartridge Fuses Holder Clip Class CC Fuses 5AG Without Indicator Bulk 5.11 mOhms KLKR
Littelfuse Industrial & Electrical Fuses 60A 700VAC 700VDC FF L70QS POWR-SPEED
Datasheet
25In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 60 A 700 VAC Fast-Acting Fuses 700 VDC 200 kA Bolt Down Class aR Fuses Without Indicator Bulk L70QS
Littelfuse Industrial & Electrical Fuses 750V FAST BLOW 250A
Datasheet
14In Stock
Min.: 1
Mult.: 1
Semiconductor Fuses 250 A 750 VDC 50 kA Round Body Fuses Stud Bolt Down Without Indicator Bulk L75
Littelfuse Industrial & Electrical Fuses 750V FAST BLOW 400A
Datasheet
9In Stock
24On Order
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A 750 VDC 50 kA Round Body Fuses Stud Bolt Down Without Indicator Bulk L75
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 50A
Datasheet
31In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 50 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Blade / Bolt Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 900V FAST BLOW 350A
Datasheet
15In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 350 A Fast-Acting Fuses Knife Blade Class aR Fuses 70 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A
Datasheet
4In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 500 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Blade / Bolt Class aR Fuses 72 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 350A 600VAC Class J
Datasheet
5In Stock
Min.: 1
Mult.: 1
Current Limiting Fuses 350 A 600 VAC Time-Delay Fuses 500 VDC 20 kA Cartridge Blade Fuses Holder Knife Blade Class J Fuses Without Indicator Bulk JTD