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Power Assemblies and Controllers

Circuit Protection

Industrial High Energy Varistors

Littelfuse is an industry leader in circuit protection and provide a wide range of Industrial High Energy Varistors for industrial applications.

 Littelfuse Industrial High Energy Varistors by GD Rectifiers

BA

High energy packaged industrial varistor

Littelfuse’s BA series are heavy-duty industrial metal oxide varistors designed to provide surge protection for motor controls and power supplies used in oil-drilling, mining, transportation equipment and other heavy industrial AC line applications.

Littelfuse BA Industrial High Energy Varistors by GD Rectifiers

Vmax AC (V): 130, 150, 250, 275, 320, 420, 480, 510, 575, 660, 750, 880

Vmax DC (V): 175, 200, 330, 369, 420, 560, 640, 675, 730, 850, 970, 1150

Wtm (J): 450, 530, 880, 950, 1100, 1500, 1600, 1800, 2100, 2300, 2600, 3200

Datasheet

 

BB

High energy packaged industrial varistor

Littelfuse’s BA series of transient surge suppressors are heavy-duty industrial MOVs designed to provide surge protection for motor controls and power supplies used in oil-drilling, mining, transportation equipment and other heavy industrial AC line applications. The BA series are rated from 130 to 880V M(AC).

Littelfuse BB Industrial High Energy Varistors by GD Rectifiers

Vmax AC (V): 1100, 1400, 1700, 2000, 2400, 2800

Vmax DC (V): 1400, 1750, 2150, 2500, 3000, 3500

Wtm (J): 3800, 5000, 6000, 7500, 8600, 10000

Datasheet

 

DA

High energy industrial varistor

Littelfuse’s DA varistor series provides surge protection for motor controls and power supplies used in oil drilling, mining and transportation equipment. Littelfuse’s DA varistors are UL recognised and have identical ratings and specifications but differ in case construction to provide flexibility in equipment designs.

Littelfuse DA Industrial High Energy Varistors by GD Rectifiers

Size: 40mm

Vmax AC (V): 130, 150, 250, 275, 320, 420, 480, 510, 575, 660, 750

Vmax DC (V): 175, 200, 330, 369, 420, 560, 640, 675, 730, 850, 970

Datasheet

 

DB

High energy industrial varistor series

The DB series features rigid terminals to ensure secure wire contacts. The DB series devices feature improved creep and strike distance capability to minimise breakdown along the package surface design that provides complete electrical isolation of the disc subassembly.

Littelfuse DB Industrial High Energy Varistors by GD Rectifiers

Size: 40mm

Vmax AC (V): 130, 150, 250, 275, 320, 420, 480, 510, 575, 660, 750

Vmax DC (V): 175, 200, 330, 369, 420, 560, 640, 675, 730, 850, 970

Datasheet

 

DHB34

High energy industrial metal oxide varistor

Littelfuse DBH34 Industrial High Energy Varistors by GD Rectifiers

Size: 34mm

Vmax AC (V): 110, 130, 140, 150, 180, 200, 250, 275, 300, 320, 330, 350, 385, 420, 440, 480, 510, 550, 575, 660, 680, 750

Vmax DC (V): 148, 175, 188, 200, 240, 265, 330, 369, 410, 420, 435, 460, 510, 560, 585, 640, 675, 710, 730, 850, 970

Datasheet

 

HA

High energy industrial varistor series

Littelfuse’s HA series transient surge suppressors are industrial high energy metal oxide varistors (MOVs) and are designed to provide secondary surge protection in the outdoor and service entrance environment (distribution panels) of buildings and in industrial applications for motor controls and power supplies used in the oil-drilling, mining and transportation fields.

Littelfuse HA Industrial High Energy Varistors by GD Rectifiers

Size: 32mm, 34mm, 40mm

Vmax AC (V): 110, 130, 140, 150, 180, 200, 250, 275, 300, 320, 330, 350, 385, 420, 440, 480, 510, 550, 575, 660, 750

Vmax DC (V): 148, 175, 188, 200, 240, 265, 330, 369, 410, 420, 435, 460, 510, 560, 585, 640, 675, 710, 730, 850, 875, 970

Datasheet

 

HB34

High energy industrial varistor series

Littelfuse’s HB34 varistor series is designed to provide surge suppression in the AC mains outdoor service entrance environment (distribution panels) of buildings. The HB34 series is typically used in industrial heavy motors, controls and power supplies in oil-drilling, mining and transportation industries.

Littelfuse HB34 Industrial High Energy Varistors by GD Rectifiers

Size: 34mm

Vmax AC (V): 110, 130, 140, 150, 180, 200, 250, 275, 300, 320, 330, 350, 385, 420, 440, 480, 510, 550, 570, 660, 680, 750

Vmax DC (V): 148, 175, 188, 200, 240, 265, 330, 370, 410, 420, 435, 460, 510, 560, 587, 640, 675, 710, 730, 850, 875, 970

Datasheet

 

HC

High energy industrial series

Littelfuse’s HC varistor series features a clipped lead design for through hole board placement and to accommodate soldered leads. The HC series has a wide operating voltage range of 110V to 750V VM(AC)RMS, RoHS compliant, lead-free and have high peak pulse current capability.

Littelfuse HC Industrial High Energy Varistors by GD Rectifiers

Size: 32mm, 34mm

Vmax AC (V): 130, 150, 250, 275, 320, 420, 480, 510, 575, 660, 750

Vmax DC (V): 175, 200, 330, 369, 420, 560, 640, 675, 730, 850, 970

Datasheet

 

HF34

High energy industrial series

The HF34 series provides surge suppression in the AC mains outdoor and service entrance environment (distribution panels) of buildings. Littelfuse’s HF34 devices are used in industrial heavy motors, controls and power supplies for those used in the oil-drilling, mining and transportation industries.

Littelfuse HF34 Industrial High Energy Varistors by GD Rectifiers

Size: 34mm

Vmax AC (V): 110, 130, 140, 150, 180, 200, 250, 275, 300, 320, 330, 350, 385, 420, 440, 480, 510, 550, 570, 660, 750

Vmax DC (V): 148, 175, 188, 200, 240, 265, 330, 370, 410, 420, 435, 460, 510, 560, 587, 640, 675, 710, 730, 850, 875, 970

Datasheet

 

HG34

High energy industrial series

The HG34 series provides surge suppression in the AC mains outdoor and service entrance environment (distribution panels) of buildings. They are used in a wide range of industrial applications including HVAC and motor/generator applications.

Littelfuse HG34 Industrial High Energy Varistors by GD Rectifiers

Size: 34mm

Vmax AC (V): 110, 130, 140, 150, 180, 250, 275, 300, 350, 385, 420, 440, 510, 570, 660, 680, 750

Vmax DC (V): 148, 175, 188, 200, 240, 265, 330, 370, 410, 435, 460, 510, 560, 587, 675, 730, 850, 875, 970, 1200

Datasheet

 

C-III

High energy radial leaded varistor

Littelfuse specifically design the C-III series for high surge energy absorption ratings. This is achieved through a special dielectric material formulation which also results in higher repetitive surge ratings than other MOV types. The C-III features high energy absorption capability, high pulse life rating, wide operating voltage range, lead-free devices, halogen-free devices and RoHS compliant.

Littelfuse C-III Industrial High Energy Varistors by GD Rectifiers

Size: 10mm, 14mm, 20mm

Vmax AC (V): 130, 140, 150, 175, 230, 250, 275, 300, 320, 385, 420, 460, 510, 550, 575, 625, 660, 680,

Vmax DC (V): 505, 560, 615, 670, 730, 745, 825, 850, 875, 1200

Datasheet

 

TMOV25S

Thermal MOV varistor series

Littelfuse’s TMOV25S is rated for a specific AC line operating voltage, and exceeding these limits through the application of a sustained abnormal overvoltage condition could result in overheating and damage to the MOV.

Littelfuse TMOV25S Industrial High Energy Varistors by GD Rectifiers

Size: 25mm

Vmax AC (V): 115, 130, 140, 150, 175, 230, 250, 275, 300, 320, 385, 420, 440, 460, 510, 550, 625, 750

Wtm (J): 170, 190, 210, 220, 250, 300, 330, 350, 370, 390, 430, 460, 510, 550, 625, 750

Datasheet

 

TMOV34S

Thermally protected varistor series

The Littelfuse industrial TMOV34S series thermally protected varistor represents a new development in circuit protection. It consists of a 34mm square format varistor element (MOV) with an integral thermally activated element designed to open in the event of overheating due to abnormal overvoltage and limited currents.  

Littelfuse TMOV34S Industrial High Energy Varistors by GD Rectifiers

Size: 14mm, 20mm, 34mm

Vmax AC (V): 75, 115, 130, 140, 150, 180, 200, 250, 275, 300, 320, 330, 350, 385, 420, 460, 480, 510, 550, 575, 620, 660, 750

Vmax DC (V): 75, 102, 150, 175, 188, 200, 240, 265, 330, 369, 400, 420, 435, 460, 506, 560, 610, 640, 675, 700, 730, 800, 850, 890, 970

Datasheet

 

UltraMOV25S

High peak surge current radial lead varistor

Littelfuse’s UltraMOV25S is a high peak surge current radial lead varistor and is designed for applications that require voltage clamping of high transient surge currents from sources. The UltraMOV25S is lead-free, RoHS compliant, features a high peak surge current rating and has custom voltage types available. The UltraMOV25Sis well suited to surge protective devices (SPS’s), uninterruptable power supplies (UPS), AC power taps and meters, lightning and inductive load and capacitor bank switching.

Littelfuse UltraMOV25S Industrial High Energy Varistors by GD Rectifiers

Size: 25mm

Vmax AC (V): 115, 130, 140, 150, 175, 230, 250, 275, 300, 320, 350, 385, 420, 505, 560, 585, 615, 670, 745, 825

Vmax DC (V):  150, 170, 180, 200, 225, 300, 320, 350, 385, 420, 505, 560, 585, 615, 670, 745, 825, 890

Datasheet

 

For further information on Littelfuse’s Industrial High Energy Varistors, please call: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).

Littelfuse

Littelfuse is a global leader in circuit protection, power semiconductors and power control and sensing platforms. The company was founded in 1927 and acquired IXYS Corporation in 2018.

Further information:

You can find further information on Littelfuse using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk