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Approvals & Standards

  • IEC 60269-4 Compliance

Key features & benefits

The 690V Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles.
The Protistor® gR have been engineered to provide full range protection to eliminate all overloads and short circuit fault. Each fuse is assembled with pure silver, die-cut
elements embedded in solidified sand, which helps control arcing characteristics for a lower I²t and high interrupting rating level. All contact surfaces are silver plated and all hardware is non-magnetic.
All fuse-links can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

More specifications


  • Protection of inverters, motor drives, UPS systems and similar 690V or less equipment.

Product Specifications

Item Number


Catalog number



Square Body High-Speed Fuse Protistor® Size 70 gR 690VAC IEC 250A With Striker Open Slot Blades  

EAN/UPC code


Rated voltage AC IEC

690   V

Rated current

250   A



Fuse size




Clearing I2t At Rated Voltage

79000   A²s

Melting I2t

13448   A²s

AC Max I.R./Breaking Capacity: I1

150   kA

Power Dissipation at Rated Current Value

40   W

Indication System


Indication System Type


Contact materials

Silver-Plated Copper  

Connection/Terminal Type

Open Slot Blades  

Body/Insulating Material


Product Weight

0.4   kg

Product Width

39   mm

Product Length

133.4   mm

Product Height

46   mm

Sell Pack Quantity

3   EACH

Sell Pack Weight

1.2   kg

Sell Pack Width

140   mm

Sell Pack Length

70   mm

Sell Pack Height

145   mm