We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cylindrical ceramic tube fuse with bolted ends

OEM Industries

OEM Industries GSG RGS4 100A aR 690V 50KA line protection

SKU CH-FKTR-KDNFV

A 100 A, 690 V fast-blow ceramic fuse with bolted joint rated for 50 kA interrupting capacity

  • Amperage100
  • Product typeCircuit Protectors
  • 100 A rating protects high-current circuits
  • 690 V rating suits industrial voltage levels
  • 50 kA breaking capacity interrupts large fault currents
  • Fast-blow action limits energy let-through
  • Bolted joint ensures secure low-resistance connection

100 A 690 V fast-blow fuse

The OEM Industries GSG RGS4 is a cylindrical ceramic-tube fuse rated at 100 amps and 690 volts with a 50 kA breaking capacity. It uses a bolted-joint design for secure mounting in industrial power circuits. Electrical engineers and maintenance teams specify it for line protection where rapid fault clearing is required.

Replaces slower or lower-rated links

The fast-blow characteristic clears short-circuit current faster than standard gG or gL fuses, reducing let-through energy to downstream equipment. The step up is justified when protecting semiconductor drives, rectifiers or other aR-rated loads that cannot withstand the thermal impulse of a slower fuse. Installations staying within gG coordination curves do not need this rating.

Bolted-joint installation notes

The fuse body fits into compatible bolted fuse bases; torque the mounting bolts to the base manufacturer's specification to avoid hot spots. A common error is re-using a base with pitted contacts, which raises resistance and causes nuisance opening. Verify that the system voltage does not exceed 690 V and that the prospective fault current is within the 50 kA interrupting rating.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $50.99
Typical for this category: the median of 1,135 items is $54.99.

Specifications

Product
Product lineGSG RGS4
Model nameGSG RGS4
Product typeCircuit Protectors
Power
Amperage100

Questions about this item

What diameter fuse holder or bolt pattern does the 100A ceramic tube require?

The fuse uses a bolted joint on a cylindrical ceramic body; match the holder to the 100A aR 690V rating and verify bolt centres before mounting.

Which orientation and torque should I use when bolting the fuse into the circuit?

Install with the ceramic tube vertical or horizontal as the panel allows, tighten both bolted joints to the manufacturer’s specified torque, and confirm the 50KA interrupt rating is not exceeded.

After a 50KA fault event, what inspection or replacement steps apply to this fuse?

A fast-blow ceramic fuse that has interrupted a 50KA fault must be replaced; inspect the bolted contacts for pitting and fit a new 100A aR 690V unit before restoring power.

More in Breakers & Circuit Protection

Similar items