OEM SJKQ1 Manual/Automatic Dual-Use ATS Automatic Transfer Switch Factories, Companies

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OEM SJKQ1 Manual/Automatic Dual-Use ATS Automatic Transfer Switch Factories, Companies

The SJKQ1 ATS Automatic Transfer Switch ensures uninterrupted power supply by automatically transferring loads between two sources (e.g., grid/generator) during outages or fluctuations. Operating at AC 220V-440V/50-60Hz with 6A-400A current range, it achieves seamless transitions (<100ms) via 32-bit ARM Cortex monitoring and adjustable delays (0.5-30s). This ATS features mechanical/electrical interlocks to prevent backfeeding, alongside over/undervoltage and phase-loss protection. Ideal for critical facilities, the SJKQ1 Automatic Transfer Switch guarantees reliability with auto-reversion logic and customizable hysteresis for stable power management.

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Product Description

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.
Altitude at installation site: Not exceeding 2000m.
Relative humidity of the atmosphere: Not exceeding 50% at an ambient temperature of +40°C, with higher humidity permissible at lower temperatures; the maximum average relative humidity is 90% when the monthly average minimum temperature of the wettest month is +25°C. Special measures shall be taken to address condensation on the product surface due to humidity fluctuations.
Pollution degree: Level III.

Operating environment requirements: Free from severe vibration and impact, corrosive or insulation-damaging gases, excessive dust, conductive particles, explosive materials, and strong electromagnetic interference.

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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, Non-Adjustable)
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 (Main Source)
Conversion Mode	Auto-Recovery	Auto-Recovery
Fire Linkage Control	None	Fire Alarm Cutoff (DC 12-24V Input)
Display Function	Signal Indication	Signal Indication

Switch Dimensions & Installation

Dimensions & Installation Reference (Table 3 & Figure 1)

Model & Size	Overall Dimensions (mm)			Installation Dimensions (mm)
Model & Size	L	W	H	L1	W1	d
4-Pole Switch	220	132	120	200	120	4
3-Pole Switch	185	132	120	165	120	4

Frequently Asked Questions (FAQ)

1. What is the transfer time for this Automatic Transfer Switch?

The transfer time is less than 3 seconds (<3s), which is factory-preset and non-adjustable to guarantee stable and automated circuit conversion.

2. What is the difference between the Terminal Type and Smart Type controllers?

The Terminal Type features Auto & Manual operation modes and Phase-Loss detection. The Smart Type adds an 'Off' mode, includes both undervoltage and phase-loss detection for the main source, and supports fire linkage control with a DC 12-24V fire alarm cutoff input.

3. What pole configurations and rated currents are available?

The switch is available in 3-Pole (3P) and 4-Pole (4P) configurations, supporting rated operational currents including 6A, 10A, 16A, 20A, 25A, 32A, 40A, and 63A.

4. What are the installation environmental limits for this ATS?

The switch operates within an ambient temperature of -5°C to +40°C (24h average ≤ +35°C), an altitude of up to 2000m, and under Level III pollution conditions without explosive materials or strong electromagnetic interference.

5. What is the operational lifespan of the switch?

The switch has a rated electrical life of 1,500 operations and a mechanical endurance/life of up to 6,000 operations under standard usage.

6. Does the switch recover automatically after power is restored?

Yes, both the Terminal Type and Smart Type utilize an Auto-Recovery conversion mode to automatically switch back to the normal power source once it is restored.