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Low-voltage switchboards, remote power panels, power distribution units, and medium-voltage switchgear. Built around your specification under UL 891 and UL 508A, factory-tested and functionality-tested before anything ships, in as little as 15 weeks.
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Engineered for Demanding Applications
AC 208V-600V, VDC up to 1000V
AC up to 5000A, DC up to 1000A
Normal up to 100kAIC
Engineered Solution up to 200kAIC
Copper: Tin, Silver
Aluminum: Tin, Silver
Up to 100%
Schneider | ABB | Eaton | LS Electric | Siemens
Available
UL 891 | UL 508A
Factory Tested | Functionality Tested

Built for Higher-Demand Infrastructure
AC 5kV to 38kV
AC up to 4000A
Normal up to 100kAIC
Copper: Tin, Silver
Aluminum: Tin, Silver
Metal enclosed with fixed breaker
Metal clad with drawout breaker
Utility metering compartments
Schneider | ABB | Eaton | LS Electric | Siemens
Available
IEEE C37.20.7 | UL 1558 | UL 508A
Factory Tested | Functionality Tested

Scalable Distribution for High-Demand Systems
AC 208V to 600V
AC 50kVA to 2MVA
Normal up to 100kAIC
Copper: Tin, Silver
Aluminum: Tin, Silver
Up to 200%
80C to 130C temp rise
Aluminum or copper windings
K4 to K20 K-ratings
Up to 7% impedance
Convection cooling
Up to 1200A
Schneider | ABB | Eaton | LS Electric | Siemens
Available
UL 891, UL 508A, UL 1062
Factory Tested | Functionality Tested

Reliable Distribution for Critical Environments
AC 208V-600V
AC up to 800A
Single, Double Back-to-Back, Double Side-by-Side & Quad Arrangement
Normal up to 100kAIC
Copper (Tin, Silver)
Aluminum: (Tin, Silver)
Up to 100%
Schneider | ABB | Eaton | LS Electric | Siemens
Available
UL 891 | UL 508A
Factory Tested | Functionality Tested
With scalable manufacturing capabilities and room to expand, First Source is building the capacity to support demanding critical-power projects.