100A ATS Automatic Transfer Switch

ATS(Automatic Transfer Switch) Between Main Power And Generator Set

Designed for residential and light commercial use, this UL-listed ATS automatically detects power loss, starts your standby generator, and safely transfers the electrical load within seconds. Built with durable components and featuring manual override capability, our 100A automatic transfer switch offers safety, compliance, and peace of mind. Perfect for backup systems up to 24kW.

Specification:

Product Detail 

• Available in both manual and automatic operation modes.
• Equipped with mechanical and electrical interlocks for safe and reliable power transfer.
• Features a 3-position indicator to clearly display the current switch status (Utility / Off / Generator).
• Rated to Insulation Class III for enhanced safety and performance.
• Cable entry located at the bottom of the enclosure for simplified wiring and installation.
• Removable panels on all four sides allow quick and easy access for maintenance.
• Constructed from high-quality cold-rolled steel with a durable powder-coated finish for corrosion resistance.
• Integrated lifting lugs on the top facilitate safe handling and transportation.
• Available in wall-mounted or freestanding (standby) configurations to suit various installation needs.

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FAQ:

Q1: What is an Automatic Transfer Switch (ATS)?
A: An ATS is an electrical device that automatically switches a power source from the primary utility supply to a backup generator when a power outage occurs—and switches back once utility power is restored.

Q2: Do I need an ATS for my standby generator?
A: Yes. An ATS is essential for safely and automatically connecting your generator to your electrical system during outages, preventing back-feeding into utility lines and protecting both your equipment and utility workers.

Q3: What does “100A ATS” mean?
A: It means the transfer switch is rated for a maximum continuous current of 100 amps, making it suitable for homes or small businesses with electrical services up to 100A (typically supporting generators up to 24 kW).

Q4: Can I install a 100A ATS myself?
A: Installation must be performed by a licensed electrician. Improper installation can create serious safety hazards, violate electrical codes, and void warranties or insurance coverage.

Q5: Does this ATS support manual operation?
A: Yes. Many 100A ATS models offer both automatic and manual modes, allowing you to manually control power sources during maintenance or testing.

Q6: How does the ATS ensure safety during transfer?
A: It uses both mechanical and electrical interlocks to prevent the utility and generator sources from being connected simultaneously—a critical safety feature known as "break-before-make" operation.

Q7: What does the 3-position indicator show?
A: The indicator displays three statuses: Utility (normal power), Off (isolated/disconnected), and Generator (backup power active)—giving you clear visibility of the current power source.

Q8: Is the ATS suitable for outdoor installation?
A: Standard models are designed for indoor use only unless specified as NEMA 3R or higher. Always check the enclosure rating before installing outdoors. We also can add the rainproof cover for outdoor use. 

Q9: What materials is the ATS enclosure made of?
A: The panel is constructed from cold-rolled steel with a powder-coated finish for durability, corrosion resistance, and long service life.

Q10: Can I access the internal components for maintenance?
A: Yes. The design includes removable panels on all four sides, allowing easy access for inspection, servicing, or upgrades without full disassemble

Our Company  

Xiamen ZTA Power System Co.,Ltd  specializes in the research, manufacturing, and export of diesel generator sets, Natural Gas Generator Set, Lighting Tower, Hybrid Energy Generator  set, Reefer Container, Alternator, Synchronize Panel, ATS And Spare Parts. Committed to providing efficient, reliable, and intelligent power solutions to global customers. With more than 17 years of industry expertise, our products have served clients in 200+ countries across industries such as manufacturing, mining, infrastructure, and emergency power supply.