ODM SJKQ2Z ATS Switch Dual Power For LV Power Manufacturers, Factory

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ODM SJKQ2Z ATS Switch Dual Power For LV Power Manufacturers, Factory

The SJKQ2Z ATS Automatic Transfer Switch integrates seamlessly with SJKM1 series circuit breakers to provide reliable power switching for 100A-1250A loads at 400V AC/50-60Hz. Designed for critical backup systems, this ATS features adjustable delay timing (0-30s), 2500V insulation withstand, and 5000-cycle mechanical endurance. With 3P/4P configurations and AC230V control voltage, the SJKQ2Z Automatic Transfer Switch ensures smooth transitions between primary and secondary sources while preventing flicker or breakdown. Ideal for industrial and commercial applications, it combines robust construction with intelligent monitoring for uninterrupted power distribution.

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Product Description

Type Designation

Index	Designation Breakdown
1	Manufacturer Code
2	Auto-Transfer Function
3	Derivative Code: (): MCCB; W: Compact Type; W1: Economy Type; W2: Smart Type (Undervoltage / Phase-Loss / Off / Fire Protection)
4	Function Code: R: Grid-to-Grid (Optional); F: Grid-to-Generator; M: Terminal Type (Optional); Y: Integrated Smart Type (Off / Fire Protection / Undervoltage); N: Split Smart Type (Off / Fire Protection / Undervoltage)
5	Frame Size Current
6	Number of Poles
7	Rated Current (In)

Setting Program Instructions

1. LCD Display
2. SET Button
3. Right-Shift Button
4. Increment Button (+)
5. Decrement Button (-) / Alarm
6. Manual Mode Button
7. Auto Mode Button
8. Dual-Off Button

Note: LCD display abbreviations: "Auto-reclose" (AR), "No auto-reclose" (NAR). "SF01" must not be changed.

Product Display

Technical Parameters

Model	Circuit Breaker Model	Frame Size Current (A)	Rated Operational Current (In)
SJKQ2Z-100/3	SJKM1 Series	100	10 / 16 / 20 / 25 / 32 / 40 / 50 / 63 / 80 / 100
SJKQ2Z-100/4		100	10 / 16 / 20 / 25 / 32 / 40 / 50 / 63 / 80 / 100
SJKQ2Z-225/3		225	100 / 125 / 140 / 160 / 180 / 200 / 225
SJKQ2Z-225/4		225	100 / 125 / 140 / 160 / 180 / 200 / 225
SJKQ2Z-400/3		400	250 / 315 / 350 / 400
SJKQ2Z-400/4		400	250 / 315 / 350 / 400
SJKQ2Z-630/3		630	400 / 500 / 630
SJKQ2Z-630/4		630	400 / 500 / 630
SJKQ2Z-800/3		800	630 / 700 / 800
SJKQ2Z-800/4		800	630 / 700 / 800
SJKQ2Z-1250/3		1250	800 / 1000 / 1250
SJKQ2Z-1250/4		1250	800 / 1000 / 1250
Breaking Current (kA)	Refer to the instruction manual of the specific circuit breaker model.
Rated Operational Voltage (V)	400V
Insulation Voltage (V)	2500V (No flicker and no breakdown within 1 minute)
Frequency (Hz)	50 - 60 Hz
Delay Time	0 ~ 30s (Adjustable)
Control Rated Operating Voltage (V)	AC 230V
Mechanical Life	5,000 Operations

Outline and Installation Dimensions

Model Dimensions	W (mm)	W1 (mm)	L (mm)	L1 (mm)	H (mm)
SJKQ2Z-100/3P	390	355	220	200	120
SJKQ2Z-100/4P	420	385	220	200	120
SJKQ2Z-225/3P	430	395	220	205	140
SJKQ2Z-225/4P	465	435	220	205	140
SJKQ2Z-400/3P	560	510	310	285	190
SJKQ2Z-400/4P	605	555	310	285	190
SJKQ2Z-630/3P	625	570	320	295	195
SJKQ2Z-630/4P	690	635	320	295	195
SJKQ2Z-800/3P	705	655	340	315	190
SJKQ2Z-800/4P	780	730	340	315	190
SJKQ2Z-1250/3P	730	675	480	365	280
SJKQ2Z-1250/4P	800	745	480	365	280

Installation and Usage Instructions

21: Normal Neutral Line
22: Alternate Neutral Line
23, 24: Normal Source ON Indicator Light
25, 26: Alternate Source ON Indicator Light
27, 28: Normal Source ON Indicator Light
29, 30: Alternate Source ON Indicator Light
31, 32: Duo Status Indicator Light
33, 34: Fire Signal Input / AC or DC 6-24V Dry Contact
35, 36: Generator Contact (5A)

Frequently Asked Questions (FAQ)

What is the default setup password for the SJKQ2Z ATS controller?

The controller setup password is set to 8888. Enter this code step-by-step using the shift and increment keys to access programmable operating parameters.

Can the transfer delay time be customized?

Yes, both Normal-to-Backup and Backup-to-Normal transfer times feature fully adjustable multi-stage delay settings within a range of 0 to 30 seconds.

How does the ATS interface with an emergency standby generator?

The switch provides dedicated generator start contacts (terminals 35 & 36, rated at 5A) and can be set to either full-automatic (FD 0) or semi-automatic (FD 1) modes via the control interface.

Does this automatic transfer switch support fire protection integration?

Yes, smart models support emergency fire linkage using terminals 33 & 34, compatible with an AC or DC 6-24V dry contact input to automatically execute a dual-off release when triggered.

What frame current ratings are available in this series?

The series offers frame sizes ranging from 100A up to 1250A across 3-Pole and 4-Pole configurations, covering rated operational currents from 10A to 1250A.

Step	Key Press	Display	Operation Description	Functionality
1	SET	CodE	Enter setting mode	Password setup
2	>>	OodE	Press (︽︾) to set the first digit	Password setup
3	>>	80dE	Press (︽︾) to set the second digit	Password setup
4	>>	880E	Press (︽︾) to set the third digit	Password setup
5	>>	8888	Press (︽︾) to set the fourth digit	Password confirmation (8888)
6	>>	dddd / N-R 03s	Correct password verified; Displays Normal-Backup transfer time	Normal-Backup transfer time
6	>>	dddd / N-R 03s	Press (︽︾) to configure N-R 1st-stage delay	Normal-Backup transfer time
7	>>	N-R 03s	Displays Normal-Backup transfer time	Normal-Backup transfer time
7	>>	N-R 03s	Press (︽︾) to configure N-R 2nd-stage delay	Normal-Backup transfer time
8	>>	R-N 03s	Displays Backup-Normal transfer time	Backup-Normal transfer time
8	>>	R-N 03s	Press (︽︾) to configure R-N 1st-stage delay	Backup-Normal transfer time
9	>>	R-N 03s	Displays Backup-Normal transfer time	Backup-Normal transfer time
9	>>	R-N 03s	Press (︽︾) to configure R-N 2nd-stage delay	Backup-Normal transfer time
10	>>	SF 08s	Displays dual-off time	Dual-off transfer time
10	>>	SF 08s	Press (︽︾) to configure SF 1st-stage delay	Dual-off transfer time
11	>>	SF 08s	Displays dual-off time	Dual-off transfer time
11	>>	SF 08s	Press (︽︾) to configure SF 2nd-stage delay	Dual-off transfer time
12	>>	FFF 1	Press (︽︾) to set auto-recovery (1=ON, 0=OFF)	Auto-recovery toggle
13	>>	FD 0	Press (︽︾) to set generator mode (0=Full-auto, 1=Semi-auto)	Generator control
14	>>	FC 0	Press (︽︾) to configure priority (0=Normal, 1=Backup)	Priority configuration
15	>>	H 130	Press (︽︾) to configure Overvoltage threshold (220V * 130%)	Overvoltage protection
16	>>	L 50	Press (︽︾) to configure Undervoltage threshold (220V * 50%)	Undervoltage protection
17	>>	NA 220V	Press (︽︾) to calibrate Normal Phase-A voltage	Live voltage calibration
18	>>	NB 220V	Press (︽︾) to calibrate Normal Phase-B voltage	Live voltage calibration
19	>>	NC 220V	Press (︽︾) to calibrate Normal Phase-C voltage	Live voltage calibration
20	>>	RA 220V	Press (︽︾) to calibrate Backup Phase-A voltage	Live voltage calibration
21	>>	RB 220V	Press (︽︾) to calibrate Backup Phase-B voltage	Live voltage calibration
22	>>	RC 220V	Press (︽︾) to calibrate Backup Phase-C voltage	Live voltage calibration
23	>>	SAVE	Press to apply and store settings	Save configuration

ODM SJKQ2Z ATS Switch Dual Power For LV Power Manufacturers, Factory

Product Description

Type Designation

Setting Program Instructions

Product Display

Technical Parameters

Outline and Installation Dimensions

Installation and Usage Instructions

Frequently Asked Questions (FAQ)

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