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Approvals & Standards

  • IEC 60269-4 Compliance
  • UL/CSA Recognized E76491
  • CCC GB 13539.4

Key features & benefits

The 690/700V Protistor® fuse-links range provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These aR ultra-fast acting square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles.
They have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors, IGBT and MOSFET devices. They are assembled with 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.
Each fuse-link 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


Catalog number


Item Description (ERP)

A 070 URD 30 KI 0125  


PROTISTOR® SB aR, US short slotted blade, KI, sz.30, 690VAC IEC-700VAC UL, 125A  

EAN/UPC code


Rated voltage AC UL

700   V

Rated voltage AC IEC

690   V

Rated current

125   A



Fuse size




Clearing I2t At Rated Voltage

4.9   kA²s

Melting I2t

0.85   kA²s

AC Max I.R./Breaking Capacity: I1

200   kA

Power Dissipation at Rated Current Value

30   W

Indication System


Indication System Type


Contact materials

Silver-Plated Copper  

Connection/Terminal Type

Slotted Blades  

Body/Insulating Material


Product Weight

0.291   kg

Product Width

40   mm

Product Length

129   mm

Product Height

48   mm

Sell Pack Quantity

3   EACH

Sell Pack Weight

0.873   kg

Sell Pack Width

133   mm

Sell Pack Length

157   mm

Sell Pack Height

54   mm