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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 equipments.

Product Specifications

Item Number


Catalogue No.


Item Description (ERP)

6,9 GRB 71 EF 0400  

Short Description

Protistor SB fuse-link gR, 690VAC, size 71, 400A, EF for bolted connections  



Rated voltage AC IEC

690   V

Ampere Rating

400   A



Fuse Size




Clearing I2t At Rated Voltage

225   kA²s

Melting I2t

38.3   kA²s

AC Max I.R./Breaking Capacity: I1

150   kA

Power Dissipation at Rated Current Value

61   W

Indication System


Indication System Type


Connection/Terminal Material

Silver-Plated Copper  

Connection/Terminal Type

Open Slot Blades  

Body/Insulating Material


Product Weight

1.183   lb

Product Width

2.01   in

Product Length

5.25   in

Product Height

2.22   in

Sell Pack Quantity

3   EACH

Sell Pack Weight

3.549   lb

Sell Pack Width

5.51   in

Sell Pack Length

6.85   in

Sell Pack Height

2.8   in