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.

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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Mounting Style
Termination Style
Voltage Rating AC
Voltage Rating DC
Varistor Voltage
Clamping Voltage
Diameter
Peak Surge Current
Surge Energy Rating
Capacitance
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Littelfuse Varistors 550V 14mm Phenolic UltraMOV
Datasheet
1,985In Stock
Min.: 1
Mult.: 1
Reel: 400

UltraMOV MOVs PCB Mount Radial 550 VAC 745 VDC 910 V 1.5 kV 17 mm 6.5 kA 210 J 180 pF - 40 C + 125 C Reel, Cut Tape
Littelfuse Varistors 130V 20mm Epoxy UltraMOV
Datasheet
2,524In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 130 VAC 170 VDC 184 V to 226 V 340 V 20 mm 10 kA 100 J 1900 pF - 55 C + 85 C Bulk
Littelfuse Varistors 140V 20mm Epoxy UltraMOV
Datasheet
1,397In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 140 VAC 180 VDC 242 V 360 V 20 mm 10 kA 110 J 1750 pF - 55 C + 85 C Bulk
Littelfuse Varistors 150V 20mm Epoxy UltraMOV
Datasheet
1,699In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 150 VAC 200 VDC 216 V to 264 V 395 V 20 mm 10 kA 120 J 1600 pF - 55 C + 85 C Bulk
Littelfuse Varistors 175V 20mm Epoxy UltraMOV
Datasheet
1,165In Stock
1,500Expected 25/03/2026
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 175 VAC 225 VDC 243 V to 297 V 455 V 20 mm 10 kA 135 J 1400 pF - 55 C + 85 C Bulk
Littelfuse Varistors 230V 20mm Epoxy UltraMOV
Datasheet
1,903In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 230 VAC 300 VDC 324 V to 396 V 595 V 20 mm 10 kA 160 J 1100 pF - 55 C + 85 C Bulk
Littelfuse Varistors 275V 20mm Epoxy UltraMOV
Datasheet
1,055In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 275 VAC 350 VDC 473 V 710 V 20 mm 10 kA 190 J 900 pF - 55 C + 85 C Bulk
Littelfuse Varistors 300V 20mm Epoxy UltraMOV
Datasheet
3,245In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 300 VAC 385 VDC 423 V to 517 V 775 V 20 mm 10 kA 250 J 800 pF - 55 C + 85 C Bulk
Littelfuse Varistors 420V 20mm Epoxy UltraMOV
Datasheet
901In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 420 VAC 560 VDC 612 V to 748 V 1.12 kV 20 mm 10 kA 320 J 600 pF - 55 C + 85 C Bulk
Littelfuse Varistors 440V 20mm Epoxy UltraMOV
Datasheet
1,488In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 440 VAC 585 VDC 643 V to 787 V 1.18 kV 20 mm 10 kA 340 J 500 pF - 55 C + 85 C Bulk
Littelfuse Varistors 460V 20mm Epoxy UltraMOV
Datasheet
1,200In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 460 VAC 615 VDC 825 V 1.24 kV 20 mm 10 kA 360 J 400 pF - 55 C + 85 C Bulk
Littelfuse Varistors 510V 20mm Epoxy UltraMOV
Datasheet
199In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 510 VAC 670 VDC 902 V 1.355 kV 20 mm 10 kA 325 J 350 pF - 55 C + 85 C Bulk
Littelfuse Varistors 550V 20mm Epoxy UltraMOV
Datasheet
257In Stock
1,200Expected 06/05/2026
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 550 VAC 745 VDC 819 V to 1.001 kV 1.5 kV 20 mm 10 kA 360 J 300 pF - 55 C + 85 C Bulk
Littelfuse Varistors 550V 20mm Epoxy UltraMOV
Datasheet
1,100In Stock
Min.: 1
Mult.: 1

UltraMOV 745 VDC 1.5 kV - 55 C + 85 C Bulk
Littelfuse Varistors 625V 20mm Epoxy UltraMOV
Datasheet
1,861In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 625 VAC 825 VDC 1.1 kV 1.65 kV 20 mm 10 kA 400 J 250 pF - 55 C + 85 C Bulk
Littelfuse Varistors 140V 7mm Epoxy UltraMOV
Datasheet
Product Comments
2,876In Stock
Min.: 1
Mult.: 1
Reel: 1,000

UltraMOV MOVs PCB Mount Radial 140 VAC 180 VDC 242 V 360 V 9 mm 1.2 kA 13.5 J 160 pF - 55 C + 85 C Reel, Cut Tape
Littelfuse Varistors 320V 20mm Epoxy UltraMOV
Datasheet
1In Stock
4,800On Order
Min.: 1
Mult.: 1
Reel: 400

UltraMOV MOVs PCB Mount Radial 320 VAC 420 VDC 561 V 840 V 20 mm 10 kA 273 J 750 pF - 55 C + 85 C Reel, Cut Tape
Littelfuse Varistors 230V 7mm Epoxy UltraMOV
Datasheet
5In Stock
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 230 VAC 300 VDC 396 V 595 V 7 mm 1.75 kA 20 J 100 pF - 55 C + 85 C Bulk
Littelfuse Varistors 320V 10mm Phenolic UltraMOV
Datasheet
4,400Expected 01/06/2026
Min.: 1
Mult.: 1

UltraMOV MOVs Bulk
Littelfuse Varistors 550V 10mm Epoxy UltraMOV
Datasheet
2,717Expected 20/04/2026
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 550 VAC 745 VDC 1.001 kV 1.5 kV 10 mm 3.5 kA 95 J 100 pF - 55 C + 85 C Bulk
Littelfuse Varistors 510V 20mm Epoxy UltraMOV
Datasheet
2,400Expected 10/04/2026
Min.: 1
Mult.: 1

UltraMOV MOVs PCB Mount Radial 510 VAC 670 VDC 738 V to 902 V 1.355 kV 20 mm 10 kA 325 J 350 pF - 55 C + 85 C Bulk
Littelfuse Varistors 320V 10mm Epoxy UltraMOV
Datasheet
4,500Stock Available
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

UltraMOV 420 VDC 840 V Reel, Cut Tape, MouseReel
Littelfuse Varistors 550 VAC 370J 300V-CL 10KA-PK
Datasheet
11,200Stock Available
More Info Available
Min.: 400
Mult.: 400
Reel: 400
UltraMOV MOVs PCB Mount Radial 550 VAC 745 VDC 1.001 kV 1.5 kV 23 mm 10 kA 370 J 300 pF - 40 C + 125 C Reel
Littelfuse Varistors 130V 7mm Epoxy UltraMOV
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 1
Mult.: 1

UltraMOV Bulk
Littelfuse Varistors 130V 7mm Epoxy UltraMOV
Datasheet
Product Comments
Non-Stocked Lead-Time 13 Weeks
Min.: 10,000
Mult.: 1,000
Reel: 1,000

UltraMOV 170 VDC 340 V Reel