| MODEL | SKT1 | ASKQ6 | ASKQ8 | ASKQ1 |
|---|---|---|---|---|
| Driving Mechanism | Motorised (motorized) | Solenoid (electro-magnetic) | Solenoid (electro-magnetic) | Solenoid (electro-magnetic) |
| Current | 20A-3,200A | 16A-630A | 630A-6,300A | 6A-63A |
| Operational Voltage | AC 400V / AC 690V | AC 230V (2P), AC 400V (3P, 4P) | AC 400V / AC 690V | AC 230V (2P), AC 400V (3P, 4P) |
| Control Voltage | AC 220V, Optional: AC 110V, 208V, 280V, 180-280V; DC 24V (20A-3200A), DC 12V/48V (20A-250A) | AC 230V | AC 230V, Optional: AC 208V-280V | AC 230V |
| Phases Available | Single or Three | Single or Three | Single or Three | Single or Three |
| Poles Available | 2, 3 or 4 | 2, 3 or 4 | 3 or 4 | 2, 3 or 4 |
| Positions Available | Ⅰ- 0 -Ⅱ | Ⅰ- 0 -Ⅱ/Ⅰ-Ⅱ | Ⅰ- 0 -Ⅱ | Ⅰ - Ⅱ |
| Utilization Category | AC-33A | AC-33A | AC-33A | AC-33iB |
| Transfer Time | 0.45s | ≤0.2s | ≤0.2s | ≤0.2s |
| Applications | Solar & PV Systems | |||
| Residential/Commercial solar arrays, PV inverters, and battery storage (BESS). Optimizing the energy transition between sustainable solar power, grid power, and backup sources. | ||||
| Telecom | ||||
| Base stations, data centers, and communication towers. Ensuring zero-downtime and high-reliability power for mission-critical networking equipment. | ||||
| Residential | ||||
| Light household loads, smart home setups, and small-scale backup systems. Providing automatic, reliable power for essential appliances during grid instability. | ||||
| Industrial | ||||
| Manufacturing plants, heavy machinery, and automated production lines. Preventing production downtime and ensuring process continuity during power failure. | Not Recommend | |||
| Commercial | ||||
| Hospitals, office buildings, hotels, and retail facilities. Delivering high-availability power for critical building infrastructure. | Not Recommend | |||
What is ATS? What is the funtion of ATS?
ATS is short for Automatic Transfer Switch.
Automatic Transfer Switch is a power switching device that automatically switches between two power sources. Typically, Power 1(also referred to as the primary power, main power or normal power) is the utility power, and Power 2(also referred to as the secondary power, standby power or backup power) is the generator.
When the Power 1 fails, the ATS switches to Power 2 automatically.
The AC-33A utilization category is an important specification for an Automatic Transfer Switch (ATS), defining its ability to handle motor loads and mixed loads under demanding operating conditions. According to the IEC standard, an AC-33A ATS can perform frequent on-load switching and withstand the high inrush currents associated with motor starting.
An AC-33A Automatic Transfer Switch provides superior reliability and durability for generator power transfer applications. It is specifically designed to manage load transfers during generator startup and shutdown, making it an ideal choice for industrial power systems, commercial facilities, data centers, hospitals, and other critical applications requiring uninterrupted power supply.
PC Class originally meant “Power Contactor”, but today, it does not mean the ATS is built with contactors.
According to the International Electrotechnical Commission (IEC 60947-6-1):
PC Class ATS is a device used for power switching only, without built-in short-circuit protection.
Read more in this article PC ATS vs CB ATS
Automatic Transfer Switches (ATS) are typically available in motorized and solenoid-operated designs. Both technologies are widely used in generator backup power systems and provide reliable automatic power transfer.
A motorized ATS uses an electric motor to drive the switching mechanism, offering smooth operation, low mechanical stress, and long service life.
A solenoid ATS uses electromagnetic force to achieve rapid switching and is valued for its fast response and simple operating structure.
The choice between motorized and solenoid ATS depends on the specific application, switching requirements, and system design. Both solutions are available in various ratings and configurations to meet the needs of industrial, commercial, and residential power systems.
AISIKAI provides both motorized and solenoid-operated ATS solutions, manufactured in accordance with IEC 60947-6-1 standards to ensure dependable performance and power continuity.
A Pole refers to the number of separate electric circuits or conductive paths that the switch can control simultaneously.
A 2P ATS (Two-Pole Automatic Transfer Switch) is typically used in single-phase electrical systems. It switches two wires: 1. The Live (Phase) wire；2. The Neutral wire.
By using a 2P ATS, you ensure that the Neutral connection is also transferred or isolated when switching between the main power and a generator. This is often a safety requirement in many regions to prevent "stray" currents from returning through the neutral line.
2P ATS: Used in Single-phase Two-wires power systems(Single Phase+Neutral); thus, 2P ATS is also called single phase ATS.
3P ATS: Used in Three-phase Three-wires power systems(Three Phases: L1, L2, L3 or A, B, C);
4P ATS: Used in Three-phase Four-wires power systems(Three Phases+Neutral).
A three-phase Automatic Transfer Switch (ATS) can be configured as either a 3 Pole ATS or a 4 Pole ATS, depending on whether the neutral conductor needs to be switched during power transfer.
Yes, absolutely. AISIKAI ATS is designed for multi-source power management and is fully compatible with PV systems. Its core functions include:
Seamless Switching: Automatically switches between Utility, PV Inverter, and Backup Generator to ensure 24/7 power continuity.
System Protection: Built-in mechanical and electrical interlocks prevent backfeeding and protect your solar inverters.
Smart Logic: When used with AISIKAI controllers, the system can prioritize solar energy and only trigger the generator or utility when battery or PV output is insufficient.
AISIKAI ATS solutions integrate high-reliability Intelligent Control Units, enabling the system to not only detect total utility failure in real-time but also provide precise diagnostics for complex grid environments.
The ATS system responds instantaneously to power outages. When equipped with AISIKAI ATS Controllers, the precision algorithms further extend protection by monitoring under-voltage, over-voltage, and phase loss. This ensures the generator is signaled to start only at the most critical and appropriate moments.
Upon detecting a utility anomaly, the controller immediately sends a start signal to the generator. Once the generator reaches its rated speed and voltage, the ATS mechanism safely disconnects the utility source and simultaneously closes the generator circuit.
Within seconds, the AISIKAI system restores power to your home or business's emergency circuits. Throughout this period, the controller maintains "thermal monitoring" (active sensing) of the utility line conditions.
Not exactly—they are closely related, but not identical.
ATS (Automatic Transfer Switch) is a widely used industry term referring to a device that automatically switches between two power sources, such as utility and generator power. It’s commonly used in marketing and everyday communication.
ATSE (Automatic Transfer Switching Equipment), on the other hand, is a more formal and standardized term defined in standards like IEC 60947-6-1. It refers to the complete equipment, including the switch, controller, and related components.
In simple terms: ATS is the common name, while ATSE is the formal, standard-defined term.
Automatic Transfer Switch will switch to Utility Power from Generator Power. This is known as Auto-transfer and Auto-retransfer.
Auto-transfer and Non-auto retransfer function can be provided upon specific customer request.
Yes, every ATS is equipped with one unit of manual handle. Before you operate manually, the ATS needs to be set to Manual Mode.
Additionally, the operate direction is indicated on the switch body.
