ATS 63A Automatic Transfer Switch AC 220V

Name: ATS 63A Automatic Transfer Switch EKATS3 - ETEK Electri
SKU: EKATS3

The ATS 63A from the EKATS3 series is a PC-class automatic transfer switch for AC 50/60Hz systems. It switches from main to backup power in under 50 ms, keeping loads running during outages.

Request a Quote

Pricing is quoted per order — tell us your quantity and destination and our sales team will respond with a full offer.

ModelEKATS3

CategoryAutomatic Transfer Switches, Solar Transfer Switch

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of ATS 63A

The EKATS3 is a PC-class infrequent change-over switch with a two-station design (A for common power, B for standby). It meets IEC 60947-6-1.

Fast electromagnet drive: An electromagnet drives the switching. The default control voltage is AC 220V, and AC 110V can be customized.
Clear status indication: Power-on indicators show the common, backup, and load supplies. Mechanical position indicators show the switch status.
Self-switching and self-restoring: In automatic mode, the I (main) supply has priority when both supplies are present.
Built-in power sampling: No separate control power line is needed. Connecting the main circuit is enough for automatic changeover.
Compact modular design: The same-side incoming line makes wiring easy. Total weight is ≤ 0.5 kg.
Arc extinguishing system: The arc is split into many series arcs in the arc extinguishing grid. Electromagnetic force stretches, cools, and extinguishes them.
Durable build: The shell is fire-resistant, and the PCB has a three-proof coating for harsh environments.
Manual override: A manual/automatic selector and a manual rotary switch are fitted.

Commercial Applications of ATS 63A

The EKATS3 keeps single-phase and low-voltage commercial loads running when the grid fails. It moves automatically to a backup supply.

Applications & Use Cases

The datasheet does not list specific industries. The use cases below follow from its stated function (main-to-backup changeover, AC 50/60Hz, 10–80A) and are my inference, so review them before publishing.

Main grid to backup generator changeover: Automatic switching when the common supply fails. The switch returns to the main supply when it recovers.
Commercial and light-industrial distribution panels: Compact, DIN-mounted switching for small loads up to 80A.
Critical small loads: Equipment that cannot tolerate long outages, since switching takes under 50 ms.
Harsh-environment cabinets: Pollution level 3 rating and a coated PCB.

Technical Specifications of ATS 63A

Parameter	Value
Model	EKATS3 (frame grade 80)
Type	PC-class automatic transfer switch, two-station
Rated operating current (Ie)	10, 16, 20, 25, 32, 40, 50, 63, 80A
Poles	2P, 3P, 4P
Rated working voltage (Ue)	AC 220V (AC 110V on request)
Rated frequency	50/60Hz
Rated insulation voltage (Ui)	690V
Rated impulse withstand voltage (Uimp)	8kV
Change-over operation time	20ms
Mechanical life	≥ 6000 operations
Electrical life	≥ 1500 operations
Usage category	AC-31B
Standard	IEC 60947-6-1
Weight	≤ 0.5 kg
Protection grade	IP30
Overvoltage category	Main circuit III; control auxiliary circuit II
Pollution degree	3
Operating temperature	-5°C to +40°C (24h average ≤ +35°C)
Storage temperature	-25°C to +55°C (up to +70°C for ≤ 24h)
Altitude	Below 2000 m
Relative humidity	≤ 50% at +40°C; up to 90% at +20°C
Installation	Vertical or horizontal

Type designation: EK-ATS3-80MA/2P-80-220

EK is the company code.
ATS3 is the series.
80 is the frame grade.
MA means two-stage.
2P is the pole count.
The next 80 is the rated current. For this page it would be 63.
220 is the rated voltage.

Dimensions and Wiring of ATS 63A

ekats3-ats-63a-dimensions-wiring-terminals

Item	Value
Overall size, 2P	108 × 50.5 × 78 mm
Overall size, 4P	108 × 82.5 × 78 mm
Depth to DIN rail / total depth	70 mm / 78 mm
Terminal spacing	19.6 mm, 16 mm, 16 mm; 12 mm terminal height
Mounting dimensions	94 mm and 45 mm (side view)
Terminal width	7.4 mm
Screw torque	2.5 Nm

Wiring layout:

Top terminals: Standby (II) input N2/A2 and C2; main (I) input N1/A1 and C1.
Bottom terminals: Load output N/A and B/C.
Same-side incoming line: Both supplies connect on the same side.
Control power: None needed, because of the built-in power sampling.

Request a Quote