Automatic transfer switch manufacturer
Seamless Automatic
Transfer Switch Solutions
Ensure 24/7 uninterrupted power for critical infrastructure. SENTOP ATS offers millisecond-level switching, intelligent control, and robust mechanical interlocks for hospitals, data centers, and industrial automation.
- PC & CB Class Available
- Intelligent LCD Controller
- Dual Mechanical & Electrical Interlocks
Reliable Switching Classifications
Select the appropriate ATS class based on your power system's protection and switching requirements.
PC Class ATS
Specialized for high short-circuit withstanding and making capacity. No over-current protection, focusing purely on rapid, safe switching.
- High reliability switching
- 50ms fast transfer time
- Long mechanical service life
CB Class ATS
Integrated solution equipped with an over-current release. Provides both power switching and circuit protection (short-circuit & overload).
- Built-in Circuit Breaker
- Full protection features
- Compact, space-saving design
Intelligent Control
Intelligent Control
Advanced digital controllers providing real-time monitoring, auto-start for generators, and remote communication capabilities.
- LCD Real-time Display
- RS485 / Modbus Support
- Multi-voltage Sensing
Featured SENTOP ATS Series
High-performance automatic transfer switches engineered for mission-critical power reliability.
Explore the Full SENTOP ATS Portfolio
Looking for specific current ratings up to 3200A, 4-pole configurations, or specialized intelligent controllers? Our complete range covers every PC and CB class requirement for global power systems.
Why Choose SENTOP Automatic Transfer Switches?
Engineering Excellence for Uninterrupted Power Supply
| Technical Focus | SENTOP Standards | Common Market Products |
|---|---|---|
|
Transfer Speed
|
Fast Millisecond SwitchingOptimized electromagnetic coil & motor drive ensures switching under 50ms for seamless power. |
Slow response (100ms+), which can cause sensitive electronic equipment to reboot or data loss. |
|
Contact Material
|
Silver Alloy ContactsExcellent conductivity and high welding resistance. Ensures 10,000+ mechanical cycles. |
Standard copper or low-grade plating. Prone to pitting, oxidation, and welding under high-load switching. |
|
Reliability
|
Triple Security InterlockMechanical, electrical, and controller software interlocks prevent dual-power simultaneous connection. |
Basic mechanical interlock only. Higher risk of mechanism jam or short-circuit during rapid switching. |
|
Intelligence
|
Smart Digital ControlMulti-voltage sensing, RS485 communication, and programmable fire control linkage as standard. |
Basic LED indicators or analog control. Lacks precision monitoring and remote building management support. |
|
Arc Management
|
Specialized Arc ChutesAdvanced grid arc extinguishing system prevents damage during load transfer, extending service life. |
Simple baffles or open gaps. Arc damage can occur on high-inductive loads, reducing contact safety. |
Technical Selection Guide
Compare technical specifications across SENTOP ATS series to find the precision match for your power system.
| Series | ATS Class | Rated Current (In) | Poles | Transfer Time | Controller Type | Breaking Capacity | Primary Application |
|---|---|---|---|---|---|---|---|
| YNQ1 Series | PC Class | 16A - 630A | 2P / 3P / 4P | < 50ms | Digital / LCD | - | Data Centers / Hospitals |
| SQ3 Series | CB Class | 10A - 800A | 3P / 4P | < 100ms | Integrated | 35kA - 50kA | Industrial Plants |
| W2 Series | PC Class | 16A - 125A | 2P / 4P | < 50ms | Basic Auto | - | Residential / Small Office |
| YNQ2 Series | PC Class | 800A - 3200A | 3P / 4P | < 80ms | Intelligent LCD | - | Infrastructure / Power Plants |
| SQ5 Series | Heavy Duty | 16A - 630A | 3P / 4P | < 150ms | Manual / Auto | - | Construction / Mining |
| ATS-G Series | Gen-Set PC | 32A - 630A | 3P / 4P | < 50ms | Remote Start | - | Standby Generator Systems |
Powering Critical Infrastructure
SENTOP ATS provides the last line of defense for power reliability across global mission-critical environments.
Healthcare & Hospitals
Ensuring life-support systems and operating rooms never lose power with millisecond-level automatic switching.
Data Centers
Protecting server uptime and preventing data loss from grid fluctuations or total power outages.
Manufacturing Plants
Eliminating production downtime by seamlessly transferring to backup generators during industrial grid failures.
Telecommunications
Reliable DC/AC power switching for remote base stations and core network infrastructure hubs.
Commercial Buildings
Automated power for fire pumps, elevators, and emergency lighting in high-rise and shopping complexes.
Transport & Airports
Ensuring continuous operation of signaling systems and terminal lighting in airports and metro stations.
Master of Seamless
Power Transfer
For over 15 years, SENTOP has been a pioneer in power reliability technology. Operating from our 10,000m² specialized manufacturing hub, we deliver high-performance Automatic Transfer Switches (ATS) designed for mission-critical infrastructure.
Our solutions combine millisecond-level switching with robust mechanical interlocks, ensuring 24/7 uninterrupted power for hospitals, data centers, and telecommunications networks worldwide while meeting the strictest IEC standards.
Trusted for Critical Power Switching
See why global infrastructure projects rely on SENTOP ATS for 24/7 uninterrupted power security.
"In our data center, every millisecond counts. We've deployed SENTOP's YNQ1 series PC-class ATS, and its switching speed is consistently under 50ms. It has successfully prevented server reboots during multiple grid fluctuations. Truly seamless performance."
"Reliability is non-negotiable for hospital backup systems. The triple interlock system (mechanical, electrical, and software) on SENTOP switches gives our engineering team total peace of mind. Their 800A switches are robust and very easy to maintain."
"The LCD intelligent controller is a game-changer. We integrated these into a smart building project via RS485 Modbus. Being able to monitor voltage and switching history remotely makes SENTOP much more advanced than the standard switches we used before."
ATS Frequently Asked Questions
What is the difference between PC Class and CB Class ATS?
- PC Class: Focuses on reliability and high short-circuit withstanding. It has no over-current release and is ideal for critical loads requiring pure switching.
- CB Class: An all-in-one solution with a built-in circuit breaker. It provides power switching plus protection against overloads and short circuits.
