HYT3 CB-Class ATS Switch
The HYT3 series ATS Switch Appliance (ATSE) is a CB-class solution designed to ensure an uninterrupted power supply for critical loads in dual power source systems. Specifically engineered for AC 50Hz circuits with rated operational voltages up to 400V and rated currents ranging from 10A to 63A (as detailed for the HYT3-63 model), this ATSE not only manages the seamless transfer between a primary and a standby power source but also incorporates integrated circuit breakers for inherent overcurrent protection. The HYT3 automatically detects power supply anomalies such as undervoltage and phase loss (with overvoltage detection available on advanced models), and swiftly switches to the alternate source to maintain power continuity.
✅ Automatic Switching
✅ Multiple Power Source Monitoring
✅ Flexible Operation Modes
✅ Fast Switching Time
✅ Compliant with International Standards
✅ Wide Applications
Product Information
| Parameter | Value |
|---|---|
| Rated Operational Current (Ie) | 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Rated Operational Voltage (Ue) | AC 230V/50Hz (2P), AC 400V/50Hz (3P, 4P) |
| Rated Insulation Voltage (Ui) | 500V |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
| Rated Short-circuit Breaking Capacity (Icm) | 9.18kA |
| Rated Short-circuit Breaking Capacity (Icn) | 6kA |
| Mechanical Life | 10,000 cycles |
| Electrical Life | 3,000 cycles |
| Usage Type | AC-33iB |
| Electrical Class | CB Class |
| Standard | GB/T 14048.11 |
| Poles | 2P, 3P, 4P |
| Delay Time | A Type: Fixed 3s; B Type: Adjustable 0~30s |
| Electromagnetic Compatibility | Class B Environment |
| Outdoor Protection Class | IP30 |
| Pollution Degree | Class 3 |
| Installation Mode | Fixed or adjustable installation |
| Operating Method | Manual/Automatic |
| Switch Position | Self-locking |
| Control Switch Type | A Type: Basic type, B Type: Standard type, C Type: Smart type |
| Rated Control Power Supply (Us) | AC 230V/50Hz |
| Rated Voltage Deviation Range | ±10% (165V) |
| Control Characteristics | Loss, short-circuit, and overload protection |
Product Content
How to Choose the Right HYT3 ATS Switch
1. Rated Current & Frame Class
Current range: 10A–630A
Frame classes: 63A, 125A, 250A, 320A, 400A, 630A
2. Pole Configuration
2P, 3P, or 4P depending on your system’s neutral requirements.
3. Controller Type
A Type (Basic): Automatic/manual modes, fixed 3s delay
B Type (Standard): Adds fire control, generator function, digital display
C Type (Intelligent): Adds voltage threshold adjustment, communication (RS485), LCD display, delay adjustable (0–30s)
4. Control Modes & Functions
R: Auto transfer with auto return
S: Auto transfer without return
I: Mutual standby
F: Grid-to-generator mode
T: Communication module (C type only)
W: Fire alarm feedback
5.Protection Functions
Monitors for:
Undervoltage / Overvoltage
Phase loss / Phase failure
Generator signal handling
Fire control input/output
6.Installation & Environment
Vertical fixed mounting
Protection rating: IP20–IP30
Ambient temperature: –5°C to +40°C
Humidity: up to 90% at +20°C
Pollution level: Class 3
Rated control voltage: AC 230V/50Hz
🔹 How to Purchase the HYT3 ATS Switch
1. Specify Model Configuration
Example 1:
HYT3-250 / 4P / Type C / Mode R / 250A / With F + T + W Functions
Indicates: 4-pole, intelligent controller, grid-to-generator auto transfer with auto return, communication + fire control enabled.
Example 2:
HYT3-63 / 3P / Type A / Mode R / 32A
Basic controller with default auto transfer and return, suitable for small commercial applications.
2.Confirm Optional Features
Fire signal input (W)
Generator control (F)
Communication interface (T)
Split display panel (for cabinet integration)
Manual operating handle
3. Check Electrical Parameters
Voltage thresholds:
Undervoltage: 150V–209V adjustable (C type)
Overvoltage: 230V–299V adjustable (C type)
Delay settings:
Conversion delay & return delay: 0–30s (C type)
4. Request Support for OEM Projects
Logo customization, integrated switchboards, wiring diagrams, and bulk packaging available upon request from HUYU Electric.
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