SJKQ1 ATS Automatic Transfer Switch - Reliable Power Solution from China Suppliers and Factory for Seamless Power Management
Type Designation

| 1 | Manufacturer Code |
| 2 | Special Variant Code (ATS) |
| 3 | Frame Size |
| 4 | Circuit Breaker Type: C/DN |
| 5 | Number of Poles: 4P: 4-Pole, 3P: 3-Pole |
| 6 | Controller Type: M: Terminal Type | Z: Smart Type |
Operation Environment
●
Ambient air temperature: Upper limit not exceeding +40°C, lower limit not below -5°C, and 24-hour average not exceeding +35°C.
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Altitude: Installation site altitude not exceeding 2000m.
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Relative humidity: Not exceeding 50% at +40°C. Maximum average relative humidity is 90% when the monthly average minimum temperature of the wettest month is +25°C.
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Pollution degree: Level III.
Operating environment: Free from severe vibration and impact, corrosive or insulation-damaging gases, excessive dust, conductive particles, explosive materials, and strong electromagnetic interference.
Product Display






Technical Parameters
ATS Basic Parameters
| Name | Performance Parameters |
|---|---|
| Compliance Standard | GB/T14048.11 |
| ATS Class | CB |
| Utilization Category | AC-33iB |
| Rated Operational Voltage (Ue) | AC220-400V |
| Rated Frequency | 50Hz/60Hz |
| Rated Current (Ie) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A |
| Control Voltage | AC220V |
| Nominal Insulation Voltage | AC690V |
| Transfer Time | <3s (Factory-Preset) |
| Electrical Life | 1500 times |
| Mechanical Life | 6000 times |
| Rated Short-Circuit Making Capacity (Icm) | 7.5KA |
| Rated Short-Circuit Breaking Capacity (Icu) | 5KA |
ATS Basic Terminal/Smart Type Parameters
| Model | Terminal type | Smart Type |
|---|---|---|
| Installation type | Integrated Design | Integrated Design |
| Operation Mode | Auto & Manual Operation | Auto/ Manual/ Off Mode |
| Detection function | Phase-Loss Detection | Undervoltage & Phase-Loss Detection |
| Conversion mode | Auto-Recovery | Auto-Recovery |
| Fire linkage control | None | Fire Alarm Cutoff (DC 12-24V Input) |
| Display function | Signal Indication | LCD/Signal Indication |
Switch Dimensions & Installation


| Model & Size | Overall Dimensions (mm) | Installation Dimensions (mm) | ||||
|---|---|---|---|---|---|---|
| L | W | H | L1 | W1 | Ad | |
| 4-Pole Switch | 220 | 132 | 120 | 200 | 120 | 4 |
| 3-Pole Switch | 185 | 132 | 120 | 165 | 120 | 4 |
Frequently Asked Questions
Q1: What is the transfer time for the SJKQ1 Automatic Transfer Switch?
A: The transfer time is less than 3 seconds, which is factory-preset and non-adjustable to ensure stable power switching.
Q2: Can the SJKQ1 ATS be operated manually?
A: Yes, both Terminal and Smart types support Auto and Manual operation modes. The Smart type also includes an "Off" mode for maintenance.
Q3: What are the main differences between the Terminal Type (M) and Smart Type (Z)?
A: The Smart Type includes additional features such as Undervoltage detection for the main source and Fire Alarm Cutoff (DC 12-24V input) for fire linkage control.
Q4: What is the maximum altitude for installing this ATS?
A: The installation site altitude should not exceed 2000 meters for optimal performance and safety compliance.
Q5: What is the service life of the SJKQ1 switch?
A: The switch is designed for high durability, featuring a mechanical life of 6000 cycles and an electrical life of 1500 cycles.
Q6: Does this ATS support fire linkage control?
A: Fire linkage control (Fire Alarm Cutoff) is available specifically on the Smart Type (Z) controller models.







Claire
Mr.Fu

Claire











