Insulators

Now Offering "The Gund Company" Standoff Insulators. 
After many years of providing Rich Insulators, we’re proud to expand our offerings with products from The Gund Company—a trusted manufacturer whose standoff insulators are UL recognized under UL 891 Annex G (UL File E354884).

Why Standoff Insulators Matter
Electrical insulators play a critical role in ensuring safety and system reliability by preventing hazards such as electrocution and electrical fires. As a specific type of electrical insulator, standoff insulators are designed to maintain clear electrical boundaries within equipment, keeping electricity from jumping between components.

Common Applications for Standoff Insulators

  • Switchgear
    In electrical systems, switchgear is used to control, protect, and isolate equipment. Standoff insulators in switchgear support and separate energized components, ensuring technician safety during maintenance operations.

  • Transformers
    Transformers adjust voltage levels between circuits. During this process, standoff insulators are essential in containing and isolating the electrical current, maintaining system integrity and preventing faults.

  • Bus Ducts
    Bus ducts distribute high currents across large installations. Given the intensity of this power flow, standoff insulators are vital for containing the current, supporting safe operation, and reducing fire risk.

Need Standoff Insulators?
Choosing the right insulator is crucial for equipment performance and safety.  today to learn more about our offerings from The Gund Company and Rich Insulators.

*Custom sizes and shapes are also available to meet your exact specifications—Contact us today for more information.
Mechanical and Electrical Properties (by Family)
Mechanical
Properties
Test
Standard
Unit GINS
1461
GINS
1603
GINS
1872
GINS
2015/17
GINS
2016
GINS
3061
GINS
4061
GINS
4640
Tensile Strength UL891 Lbs. 4,000 2500 4,500-5,500 2,300-3,800 1200 2,300-4,000 6,500 6,000
Cantilever Strength UL891 Lbs. 2,000 800 900-1,300 900-1,000 500 800-1,000 2,000 1300
Compression Strength ASTM D695 Lbs. 45,000 17,000 20,000-30,000 14,000-15000 8,000 15,000-20,000 30,000 30,000
Torgue Strength -- Ft-lbs. 35 30 45 45 12 30 30 30
Hight Tolerance -- in +/- 0.015 +/- 0.015 +/- 0.015 +/- 0.015 +/- 0.015 +/- 0.015 +/- 0.015 +/- 0.015
Electrical Properties
Dielectric Strength ASTM D149 kV >40 >40 >35 >25 >20 >30 >40 >60
Arc Resistance ASTM D495 seconds >180 >180 >180 >180 >180 >180 >180 >180
Flammability Index UL 94 -- V-0 V-0 V-0 V-0 V-0 V-0 V-0 V-0
Track Resistance ASTM D2303 Min’s >600 >600 >600 >600 >600 >600 >600 >600
Creep Distance -- In. H+1.125 1.625 H+0.312 H+0.25 H H+0.25 3.687 7
Basic Impulse Level -- kV N/A N/A N/A N/A N/A N/A 60 95
 
 

Request a quote on standard or custom electrical insulators, or contact Cal Fasteners to learn more.