Since 1925, the Automatic Transfer Switch has been the cornerstone of ASCO's commitment to reliability and expertise. ASCO has pioneered advancements in Power Source Switching and Controls, ensuring progress is never compromised.
- 1st
Automatic Transfer Switch in the industry
- 2M+
Install Base
- 117
US Patents
- 30+
Compliance Codes and Standards
- 1200+
Dedicated professionals
- 60+
Countries Global Presence
Reliable Solutions for Every Segment
Discover a Century of Innovation
-
1925
First Automatic Transfer Switch(ATS)
-
1938
First ATS with Mechanically held contacts
-
1940
First facility to install ATS
-
1967
First Power Control System
-
1980
First Bypass Isolation Transfer Switch
-
1985
First Switchgear user interface
-
2011
First Critical Power Management System
-
2024
ASCO SourcePact Interconnect Source Isolation Switch
A Comprehensive Portfolio
Discover ASCO Power Technologies' innovative product portfolio, featuring Automatic Transfer Switches and advanced Power Source Switching & Control solutions.
Field-configurable for 208 to 480 volts. UL 1008-listed. Ratings from 30 to 600 Amps (up to 3000 Amps non-multi-voltage) for commercial and industrial backup power.
One ASCO 300 SERIES Multi-voltage transfer switch replaces up to 9 voltage-specific models—backed by 100 years of Power Source Switching expertise.Engineers, distributors, and contractors specify ASCO 300 SERIES Multi-voltage ATSs to reduce backup power project delays. A single UL 1008-listed model covers 208 to 480 volts applications and ships configured-to-order, eliminating voltage-specific sourcing delays and protecting against late-stage design changes that can increase project costs by 15%. Available with 30 to 600 Amps ratings (up to 3000 Amps non-multi-voltage), backed by 100 years of ASCO transfer switching expertise and innovation.
Remote diagnostics and Modbus connectivity. Integrated control system and intuitive user interface. Hot-swappable HMI and improved serviceability.
The PowerLogic Source Controller brings tomorrow's intelligence to ASCO's renowned 7000 SERIES transfer switches.Do more with less! ASCO's PowerLogic Source Controller brings intelligent, secure, simple, and serviceable backup power transfer switching to maximize uptime. Using today's workforce, this controller maximizes digitization and serviceability to realize the full benefit of tomorrow's emergency power control systems.
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