Automatic Transfer Switch

EATS-G Automatic Transfer Switch

The EATS-G Automatic Transfer Switch is a high-performance PC-class switch designed for reliable dual-power transfer in critical applications. With a rated current range from 100A to 3200A and compliance with international standards, it features integrated mechanical/electrical interlocks and voltage detection. The switch supports automatic, manual, and remote control modes, ensuring seamless transition between power sources within 0.5-2.5 seconds. Its robust construction includes clear status indicators and safety locks, making it ideal for data centers, hospitals, and industrial facilities requiring uninterrupted power supply.

Product Details

Product Descriprion

The EATS-G Automatic Transfer Switch represents cutting-edge PC-level technology that integrates switching mechanisms with intelligent logic control for seamless power management. Engineered for AC 50Hz systems up to 440V, this robust device handles heating currents from 100A to an impressive 3200A, meeting diverse power distribution requirements. Its core innovation lies in the true electromechanical integration, featuring voltage monitoring, communication interfaces, and dual mechanical/electrical interlocks for maximum safety.

The switch offers multiple operational modes: fully automatic transfer upon mains failure (with return functionality), manual override with a distinctive strong "O" cutoff position, and remote control capability. The design incorporates practical safety features including an electric key lock for operation mode selection and a dedicated padlock mechanism for secure maintenance isolation. Comprehensive status indicators (HD1/HD2/HD3) provide real-time visibility of power conditions and switch positions. Detailed wiring diagrams cover various configurations including fire-protection and non-fire protection types (3P/4P), with clear terminal designations for easy installation. With a short-time withstand current rating of 100-120kA and conversion times tailored to different current ratings (0.5-2.45s), the EATS-G delivers reliable performance for critical infrastructure including data centers, medical facilities, and industrial plants. Professional installation is recommended to ensure optimal operation and safety compliance.

Main Technical Parameters

Rated heating current (A)		100	160	250	400	630	1000	1250	1600	2000	2500	3200
Rated insulation voltage		750V					1000V
Rated impulse withstand voltage		8KV					12KV
Rated working current (A)	AC-31A	100	160	250	400	630	1000	1250	1600	2000	2500	3200
	AC-35A	100	160	250	400	630	1000	1250	1600	2000	2500	3200
	AC-33A	100	160	250	400	630	1000	1250	1600	2000	2500	3200
Rated short-time withstand current		7KA	9KA		13KA		50KA			80KA		55KA
Rated limit short-circuit current		100KA			70KA		100KA	120KA		80KA
Control power supply voltage		DC24V、48V、110V AC220V
Conversion time (S)		0.5	1	1.1	1.2		1.25			2.45

1、Rated working voltage (Ue):AC440V

2、Rated Connection Capacity (Arms):10le;

3、Rated breaking capacity (Arms):8le;

4、Control power supply voltage:DC24V、48V、110VAC 220V.

Product Model Definition

□	□	□	□	□	□	□
Enterprise characteristic number	Product Name	Shell level	poles
ELECO Electrical	Pc level isolated dual power automatic transfer switch		4P	The "F" indicates the fire protection type,which is a three-stage type:main power supply – double split and one backup power supply. No "F" indicates the two-stage type:main power supply and one backup power supply (there are fire protection and non fire protection types below 630A,and all above 800A are fire protection types)	"E" represents 2 in and 1 out,with the main and backup power supply links on the load side integrated,making it convenient for customers to install	"Z" represents intelligent,split type controller;Y701 controller - with functions such as over-voltage,undervoltage,phase loss,and starting the generator;Y702 controller – has functions such as over-voltage,undervoltage,phase loss,generator startup,485 communication,etc.

Switch Structure Description

1. Electric key lock:control switch internal control line power supply,when the electric lock is opened,the switch can achieve automatic,operational control,strong"O"operation:when the electric lock is closed,the switch can only be manually operated.

2. Operating handle:When manually operating with the operating handle,the electric lock must be closed first.

3. The mechanism padlock:special maintenance,that is,first use the operating handle to make the switch in the"0"stop position,and then pick up the padlock mechanism and padlock,can be repaired (pick up the padlock will cut off the internal control power supply of the switch,the switch can not be automatic,and can not achieve manual).

4. Indicator:indicates the working status of the switch position.

Usage Method

(1)Switch Function
1. Automatic function:when the common power supply is cut off,the switch automatically switches to the standby power supply;When the usual power supply returns to normal,the switch automatically returns to the usual power supply.
2. Strong"0"function:start the strong "0"button,the switch will cut off the dual power supply.
3. Remote control function:that is,remote control,press the""file button:the common power supply works;Press the"“button,the standby power supply works:press the"0"button,the dual power supply is cut off.
4. Please select the switch function according to the need,and wiring according to the corresponding function 5,please specify the switch model,current specifications and required functions when ordering

⑵ Letter and symbol description
1) C1 and N1are the common power supply live line and neutral line respectively,C2 and N2 are the standby power supply live line and neutral line respectively.HL1and HL2 are the common power supply and the standby power supply respectively.HD1,HD2,HD3 are the common power supply,standby power input indicator and fire(double)indicator respectively.FU1 and FU2 are2A fuses.
2) 101-106 and 201-206 are automatic conversion secondary terminals.
3) 301-306 is the automatic switch external indicator terminal.
4) Automatic wiring mode 201,206 must be short-circuited.
5) Forced"0"contact(passive)can also input DC24V power supply:
6) K1 is the output of the power generation signal(when commonly used out of power).
7) SA is the automatic/manual function selection switch,SB1 and SB2 are the common power supply respectively,and the standby power manual input button(passive contact).

Terminal Wiring Operating Method

Use a small flathead screwdriver to apply downward force as shown in the diagram, and insert the wire as shown in the diagram

Wiring Diagram

Correct Installation Method of Switch

External Terminal Wiring Diagram

1. Non fire type wining method(3Pand 4P):
Below 630A (including 630AJ,there are two types:fire type and non fire type.Above 630A (excluding),all are fire type.

2、100A(fire protection type)~3200A automatic conversion wiring method (all applicable to 3P and 4P)

3、100A (fire protection type)~3200A fully automatic+forced"0"(both power sources are disconnected)wiring method:

4、100A(fire protection type)-3200A wiring terminal diagram:

100~3200 fully automatic+generator signal output wiring method

Fully automatic+manual(remote control)wiring method

Appearance and Installation Dimensions

specification	Installation size
In	A	A1	B	B1	C	E	G	H	J	K	L	N	O	P	R	S	T	U	V	ΦX	Y	Y1	Z
100A/3	235	232	106	105	150	140	115	19	222	84	7	83	142.5	30	14	18	2.5	103	13	6	41.5	93	2
100A/4	280	244	107	105	150	140	115	19	226	84	7	83	142.5	30	14	18	2.5	103	13	6	41.5	93	2
160A/3	292	270	140	142	213	200	145	10	254	117	7	93	192	36	20	25	3.5	127	21	9	55.5	127	4
160A/4	360	303	140	142	213	200	145	10	285	117	7	93	192	36	20	25	3.5	127	21	9	55.5	127	4
250A/3	356	312	170	142	216	208	145	6	293	103	7	93	250	50	25	28	3.5	141	29	11	58	131	9
250A/4	420	362	180	142	216	208	145	6	343	103	7	93	250	50	25	28	3.5	141	29	11	58	131	9
400A/3	530	370	270	222	286	275	245	20	365	179	9	97	268	65	32	37	5	222	38	11	83	193	6
400A/4	590	440	270	222	286	275	245	20	425	179	9	97	328	65	32	37	5	222	38	11	83	193	6
630A/3	530	370	270	222	286	275	245	20	365	179	9	97	268	65	40	45	6	222	38	11	83	193	14
630A/4	590	440	270	222	286	275	245	20	425	179	9	97	328	65	40	45	6	222	38	11	83	193	14
800-1000A 3p	785	520	380	250	351	340	360	20	503	220	11	88	415	120	60	64	8	250	59	13	109	254	39
800-1000A 4p	1080	634	380	250	351	340	540	20	613	220	11	88	529	120	60	64	8	250	59	13	109	254	39
1250-1600A 3p	785	520	380	250	351	340	360	20	503	220	11	88	415	120	80	68	8	250	59	13	110	255	43
1250-1600A 4p	1080	634	380	250	351	340	540	20	617	220	11	88	529	120	80	68	8	250	59	13	110	255	43
2000A/3	785	535	423		560		360		408				490		80	81	10		30			113
2000A/4	1080	650	423		560		540		523				605		80	81	10		30			113
2500A/3	785	535	433		560		360		408				490		80	81	15		30			118
2500A/4	1080	650	433		560		540		523				605		80	81	15		30			118
3200A/3	785	535	443		560		360		408				490		80	81	20		30			123
3200A/4	1080	650	433		560		540		523				605		80	81	20		30			123