Generator Transfer Switches (ATS)
Automatic generator transfer switches (ATS) provide a seamless transition from utility power to generator power during outages, ensuring continuous operation for critical systems. These switches are essential for emergency and standby power applications where reliability and speed of transfer are critical.
Depco offers a wide range of automatic transfer switches for generators, including three-phase generator transfer switches and 277/480 volt ATS systems. Available amp ratings include 30 amp, 150 amp, 200 amp, 225 amp, 250 amp, 260 amp, 400 amp, 600 amp, and 800 amp generator transfer switches, supporting everything from small standby systems to large industrial and data center applications.
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New Thomson TS880 3000 Amp Transfer Switch
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New Thomson TS870 1600 Amp Transfer Switch
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New Thomson TS870-1200B 1200 Amp Transfer Switch
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New Thomson TS870 1200 Amp Transfer Switch
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Good Used Caterpillar CTG 800 Amp Transfer Switch
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New Surplus ASCO HO3ATSA30800CGX 800 Amp Transfer Switch
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New Thomson TS870 800 Amp Transfer Switch
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New Thomson TS870 800 Amp Transfer Switch
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New Thomson TS870 600 Amp Transfer Switch
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Like New Onan OTPCC-5602422 400 Amp Transfer Switch
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New Thomson TS870 400 Amp Transfer Switch
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Low Hour ASCO Series 7000 260 Amp Transfer Switch
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Like New ASCO 300 Series 225 Amp Transfer Switch
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Good Used ASCO Series 300 200 Amp Transfer Switch
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Good Used Kohler KCT-ACTA-022S 200 Amp Transfer Switch
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Good Used Onan OT150 150 Amp Transfer Switch
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New Surplus ASCO 302B1609AC 30 Amp Transfer Switch
Automatic Generator Transfer Switches by Amp Rating
Depco stocks automatic generator transfer switches (ATS) across a wide range of amp capacities to support residential, commercial, industrial, and mission-critical power systems. From 30 amp ATS units for small standby generators to 600 amp and 800 amp automatic transfer switches for large facilities and data centers, our inventory is designed to meet demanding power continuity and reliability requirements.
Automatic Transfer Switches by Voltage and Phase
Depco offers automatic generator transfer switches designed for common commercial and industrial electrical configurations, including three-phase generator transfer switches and 277/480 volt ATS systems. These higher-voltage transfer switches are commonly used in facilities such as data centers, manufacturing plants, hospitals, and critical infrastructure environments where stable, high-capacity power transfer is required.
By supporting 277/480V three-phase power, these automatic transfer switches help ensure seamless generator integration while maintaining compliance with electrical system requirements across complex installations.
Applications for Automatic Generator Transfer Switches
Automatic generator transfer switches play a critical role in maintaining uninterrupted power during utility outages. Depco’s ATS inventory supports a wide range of applications, including:
•Emergency power systems for hospitals, public safety facilities, and critical infrastructure
•Standby power for commercial buildings, warehouses, and office campuses
•Data centers and mission-critical environments requiring fast, reliable transfer
•Industrial and manufacturing operations where power loss can halt production
•Facilities management and infrastructure support across large properties
Each automatic transfer switch is designed to detect power loss and initiate generator startup automatically, ensuring minimal downtime and reliable system performance.
New and Used Automatic Transfer Switch Inventory
Depco carries both new and used automatic generator transfer switches, providing flexibility for different project budgets and timelines. Used ATS units are carefully evaluated to ensure operational reliability, while new and surplus inventory offers long-term performance for demanding applications.
Because ATS inventory changes frequently, availability may vary by amp rating, voltage, and manufacturer. Customers can create inventory alerts to be notified when specific automatic transfer switches become available.
Selecting the Right Automatic Generator Transfer Switch
Choosing the correct automatic generator transfer switch depends on several factors, including generator size, electrical load requirements, voltage configuration, and application type. Common considerations include:
•Required amp rating based on connected loads
•Voltage and phase compatibility with existing electrical systems
•Application environment (commercial, industrial, emergency, or mission-critical)
•Integration with generator control systems and switchgear
Depco’s team can assist in identifying the appropriate ATS configuration to support reliable generator operation and safe power transfer.
Automatic Transfer Switch Manufacturers and Compatibility
Depco sources automatic generator transfer switches from trusted manufacturers, including units designed to integrate with major generator brands and power systems. This allows customers to source ATS equipment that aligns with existing infrastructure while maintaining dependable performance during outages.
