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Cylindrical ceramic tube fuse with bolted joints

OEM Industries

OEM Industries GSG RGS4 40A aR 690V 50KA Cylindric Ceramic tube Fuse Bolted joint line protection

SKU CH-E3S8-PST8R

A 40 A cylindrical ceramic-tube fuse rated for 690 V and 50 kA breaking capacity with bolted joints for line protection

  • Amperage40
  • Product typeCircuit Protectors
  • High-current 40 A line protection for industrial circuits
  • Semiconductor-grade aR characteristic limits fault energy fast
  • 690 V AC rating suits three-phase supply networks
  • 50 kA breaking capacity clears heavy short-circuits safely
  • Cylindrical ceramic body with bolted joints ensures secure mounting

Application fit

The OEM Industries GSG RGS4 is a 40 A cylindrical ceramic tube fuse rated for 690 V AC and a 50 kA breaking capacity. It suits industrial line-protection circuits where a bolted joint connection is required. Buyers needing a different current rating, a blade-style fitting or a DC-rated device will not be served by this part.

Sustained-load behaviour

The aR characteristic provides fast-acting response to over-currents while withstanding normal inrush transients. The ceramic body and high interrupting rating maintain integrity during repeated fault events up to the 50 kA limit. Continuous operation at the 40 A rating assumes adequate ventilation and correct torque on the bolted terminals.

Installation notes

Bolted joints demand a calibrated torque wrench and clean contact surfaces to avoid hot spots. Verify the 690 V AC rating matches the system voltage before fitting. The cylindrical form factor requires compatible fuse holders or busbar clamps; mismatched hardware is the most common cause of premature failure.

How it compares

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

Price $48.99
Cheaper than about 56% of the 1,135 comparable items (median $54.99).

Specifications

Product
Product lineGSG RGS4
Model nameGSG RGS4
Product typeCircuit Protectors
Power
Amperage40

Questions about this item

Does the 690V rating mean this aR fuse runs cooler than a lower-voltage fuse at 40A?

The 690V rating shows the maximum voltage the fuse can interrupt safely. Temperature rise at 40A depends on the fuse element and the surrounding enclosure, not on the voltage rating alone.

What mounting hardware must I already have to install this bolted-joint fuse?

You need matching bolted fuse bases or terminal blocks that accept the cylindrical ceramic body and provide the bolted connections shown in the product title.

Can this 50kA aR fuse replace an older gG fuse in the same holder?

This fuse has a 50kA breaking capacity and aR characteristic for semiconductor protection. It only fits holders designed for the same cylindrical ceramic dimensions and bolted-joint termination.

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