IEM delivers state-of-the-art systems at scale by collaborating with you from idea through energization and beyond.

Plan flexible, custom solutions with us
Industry-leading delivery times
System integration and installation support
Troubleshooting and commissioning
Maintenance and break-fix

Silicon Valley Pioneers
Industrial Electric Mfg (IEM) began in a barn on a family ranch in Fremont, California. We grew along with Silicon Valley, expanding to a 12,000 sq. ft. facility in 1957, 70,000 sq. ft. in 1980, 105,000 sq. ft. in 2003, and 135,000 sq. ft. by 2013. Today, IEM has 1.5M+ sq.ft. of manufacturing capacity.

Silicon Valley Pioneers
Industrial Electric Mfg (IEM) began in a barn on a family ranch in Fremont, California. We grew along with Silicon Valley, expanding to a 12,000 sq. ft. facility in 1957, 70,000 sq. ft. in 1980, 105,000 sq. ft. in 2003, and 135,000 sq. ft. by 2013. Today, IEM has 1.5M+ sq.ft. of manufacturing capacity.

Eighties Innovations
IEM developed a groundbreaking version of the medium voltage vacuum breaker in the 1980s, pioneered the use of breakers on 21kV systems, and was the first to design a 3000A freestanding breaker for utilities.

Expanding Expertise
In 1997, IEM brought its specialized expertise to power quality and power factor correction equipment, and has since developed unique low and medium voltage switchgear systems well suited to the increased power and small footprint requirements of numerous industries.

Multinational Scale
Still based in the heart of Silicon Valley–where IEM has been solving commercial power distribution challenges for Hewlett-Packard, Apple, and dozens of high-tech pioneers since they were start-ups–IEM has expanded nationwide and into Canada to deliver advanced electrical power distribution systems.

IEM - Model UL 1008 - Low Voltage Automatic Transfer Switch (ATS) - Datasheet