Submersible 3 Way Switchgear Product

Innovative Switchgear’s solid-dielectric-in-air submersible switches and fault interrupters are similar in size and shape to existing oil-filled and SF6-filled units and thus easily utilizes existing vault and manhole spaces. One advantage of the compact size is that utility companies can now add fault interrupting capabilities where they previously had switching capabilities. Our switchgear is available in 12.5kA, 16kA and 20kA, and is suitable for 4kV – 27kV applications. All products feature our visible open isolation point which is visible from a safe working distance away from the switchgear. Our units are operated by a single handle which will de-energize, isolate and create the visible open. Each unit is constructed of 304 stainless steel, and is sealed dead-front. All products are submersible, i.e., fully-sealed, and not subject to moisture intrusion. Our equipment performs and thrives, even when submerged in 10 feet of water. It is the ideal solution for underground and coastal applications where flooding may occur.

Innovative Switchgear Solutions, Inc. Ratings Table

Voltage Class: 15.5 kV 15.5 kV 17.5 kV 25 kV 27 kV
ISG Catalog Series: 10_ 30_ 20_ 00_ 50_
Continuous Current: 600/200 A* 600 A 600 A 600/200 A* 600
Load-Break Current: 600/200 A* 600 A 600 A 600/200 A* 600
Basic Insulation Level (BIL): 95 kV 95 kV 110 kV 125 kV 125 kV
Peak Current: 32,500 A 52,000 A 41,600 A 32,500 A 41,600 A
Momentary (Sym.): 12,500 A 20,000 A 16,000 A 12,500 A 16,000 A
Momentary (Asym.): 20,000 A 32,000 A 25,600 A 20,000 A 25,600 A
Make and Latch (Sym): 12,500 A 20,000 A 16,000 A 12,500 A 16,000 A
Make and Latch (Asym.): 20,000 A 32,000 A 25,600 A 20,000 A 25,600 A
Fault Close (Sym.): 12,500 A 20,000 A 16,000 A 12,500 A 16,000 A
Fault Close (Asym.): 20,000 A 32,000 A 25,600 A 20,000 A 25,600 A
Interrupting Current (Sym.): 12,500 A 20,000 A 16,000 A 12,500 A 16,000 A
Interrupting Current (Asym.): 20,000 A 32,000 A 25,600 A 20,000 A 25,600 A
Frequency: 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz
Mechanical Operations: 7500 2000 2000 7500 2000
Load-break Operations: 7500 2000 2000 7500 2000

VFI-Switch and VFI-Trip mechanisms are dual certified to both IEEE C37.74-2003/2014 and C37.60-2012.
*200 amp terminations are rated per the IEEE 386 standard for 10 kA symmetrical, 13 kA asymmetrical.

Download the Ratings Table PDF