UL 1558 Low Voltage Switchgear

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SAI offers a wide range of Low Voltage Switchgear designed and built in full compliance with NEMA and UL standards. SAI’s flexible designs can be equipped with breakers, protective relays, and controls from any industry leading manufacturer. Each freestanding section is completely segmented into isolated metal enclosed compartments for breakers, bus systems, and cable terminations.

Each and every design is first subjected to a rigorous review by our engineering team, followed by manufacturing and testing according to our documented quality assurance processes and procedures. SAI switchgear is factory tested and field proven for high-end performance and reliability in the most demanding of mission critical applications.


  • Nema 1 enclosures

  • Main bus ratings up to 10,000A

  • Voltage ratings up to 600VAC

  • Short circuit ratings up to 100kAIC

  • Seismic certified and tested to IBC 2015 and CBC 2016

  • Voltage: Up to 600V

  • Ampacity: up to 10,000A

  • Short Circuit Rating: up to 100kA

  • Breakers: UL 1066 Mounted Drawout

  • Agency Listing: UL 1558, C-UL Canada and ANSI

  • Access: Front and Rear

  • Seismic Information: Compliant with IBC 2015 by Analysis

  • Cable Entry: Top or bottom