EKATS4 3 Phase Changeover Switch 380V 63A

Name: 3 Phase Changeover Switch EKATS4 63A ATS - ETEK Electri
SKU: EKATS4

The EKATS4 3 phase changeover switch automatically or manually transfers a load between common and standby power on 380V, 50Hz systems up to 63A. Available in 2P, 3P and 4P, it delivers reliable, quiet, IEC60947-6-1 compliant power continuity.

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ModelEKATS4

CategoryAutomatic Transfer Switches, Solar Transfer Switch

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of 3 Phase Changeover Switch

The EKATS4 3 phase changeover switch is built from two miniature circuit breakers plus accessories (auxiliary contact and alarm contact), a mechanical interlocking transmission and a controller. The 63A specification suits lighting and small motor control equipment.

Compact and long-lived: Small volume, simple structure, convenient operation, and long service life.
Pole options: Supplied in 2P, 3P and 4P.
Single-motor drive: Smooth, noise-free transfer with a small impact.
Dual interlock: Mechanical and electrical interlocking make changeover reliable, with manual or automatic operation.
Flexible ratings: The common and standby circuit breaker rated currents can be different.
Status indication: User wiring terminals report breaker status (open or closed), and the panel has various indicators.
Two versions: A type and B type.

Commercial Applications of 3 Phase Changeover Switch

The EKATS4 3 phase changeover switch completes the transfer between a common power supply and a standby power supply. It is used in dual power supply systems where uninterrupted supply matters.

Applications & Use Cases

Hospitals.
Shops.
Banks.
Chemical industry.
Metallurgy.
High-rise buildings.
Military facilities and other important occasions.
Lighting circuits and small motor control equipment (63A specification).

Technical Specifications of 3 Phase Changeover Switch

The table below lists the parameters the datasheet gives for the EKATS4 3 phase changeover switch.

Parameter	Specification
Model	EKATS4 (frame grade 63)
Standard	IEC60947-6-1
Type	Automatic transfer switch, A type / B type
Rated frequency	AC 50Hz
Rated working voltage	380V
Rated working current	Up to 63A (10, 16, 20, 25, 32, 40, 50, 63A)
Poles	2P, 3P, 4P
Operation	Automatic or manual
Drive	Single motor
Interlocking	Mechanical and electrical
Indicator voltage	AC 230V (A type diagram); AC 220V (B type diagram)
Fire-fighting signal input	DC 24V (fire protection / power generation type)
Installation altitude	≤ 2000 m
Ambient temperature	-5°C to +40°C (24-hour average ≤ +35°C)
Relative humidity	≤ 50% at +40°C (higher allowed at lower temperatures)
Environment	No explosion-risk medium; no corrosive gas or conductive dust; no significant shake or shock vibration

Type designation (EK ATS4-63/2P A 63A):

EK = company code.
ATS4 = automatic transfer switch series.
63 = frame grade; 2P = pole (2P/3P/4P).
A = type (A or B).
63A = rated current.

Dimensions and Wiring of 3 Phase Changeover Switch

Dimensions below are in mm. Use them to plan panel space for the EKATS4 3 phase changeover switch.

ekats4 a dimensions

Model	W	W1	L	L1	H
EKATS4/2P A type	145	128	122	134	115
EKATS4/4P A type	217	197	122	134	115

ekats4 b dimensions

Model	W	W1	L	L1	H
EKATS4/2P	155	137	136	125	114
EKATS4/3P	190	173	136	125	110
EKATS4/4P	225	208	136	125	114

Terminal wiring

EKATS4-A, general output

ekats4 a general output wiring diagram

1-2 is the common closing indication, and 3-4 is the standby closing indication.

EKATS4-A, intelligent output

ekats4 a intelligent output wiring diagram

1-2 and 3-4 are as above, and 5-6 connects the fire-fighting voltage (DC24V).

EKATS4-B, basic type

ekats4 b basic type wiring diagram

Common electrical indication output.
Common closing indication output.
Common zero line output.
Standby electrical indication output.
Standby closing indication output.
Standby zero line output.

EKATS4-B, fire protection and power generation type

Fireprotectionand powergenerationtype

Common closing indication output.
Standby closing indication output.
Common zero line output.
Fire-fighting double split (DC24V) signal input.
Generator oil engine signal output.
Public signal point of fire power generation.

Wiring notes:

On a three-pole switch (A type), connect the common zero line to terminal 2 and the standby zero line to terminal 4. Terminals 2 and 4 connect to the supply zero line and are shared with the closing-indication zero line.
On a three-pole switch (B type basic), connect the common zero line to terminal 3 and the standby zero line to terminal 6.
On a three-pole switch (B type fire protection), connect the common and standby zero lines to terminal 3.
Warning: Never connect the zero line N to the phase line by mistake, or the dual power switch controller will burn out.
Warning: The indicator light is AC220V, and an external power supply is strictly prohibited.

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