Power Transfer

ATS 1000A/630A 3P Automatic Transfer Switch

Walax high-capacity 3-pole automatic transfer switch rated to 1000A (630A frame). Built for mains-to-mains and mains-to-generator changeover in commercial buildings, factories and data centres, with positive interlocking that prevents both sources connecting simultaneously.

630A–1000A Capacity

High-current frame for main incoming and generator changeover on commercial and industrial supplies.

Positive Interlock

Mechanical interlocking guarantees the two sources can never close simultaneously, eliminating back-feed risk.

Auto / Manual Control

Three-position operation with clear status indication for transfer, test and maintenance scenarios.

Specifications

Technical Specifications

Standard ratings listed below – custom configurations available on request. Contact our engineers to confirm parameters for your market.

Standard	IEC 60947-6-1 · CE
Rated current (In)	630A / 1000A
Poles	3P (three-phase)
Rated voltage	AC 400V (50/60Hz)
Transfer type	Automatic (mains-mains / mains-generator)
Operating mode	Auto / Manual / Off
Isolation	Full double-break visible isolation
Mechanical interlock	Positive, both-source lockout
Electrical life	≥ 6,000 operations
Mechanical life	≥ 10,000 operations
Mounting	Panel / busbar
Ambient temperature	-5°C to +40°C

Applications

Where These Switches Ship

Main supply changeover for commercial buildings, manufacturing plants, hospitals and data centres. The 3P 630–1000A rating suits large incoming feeders transferring between utility mains and standby generators.

FAQ

Frequently Asked Questions

What is the transfer time?

Standard transfer completes within 1–3 seconds depending on the controller. Faster transfer options and delayed-transition configurations are available for specific load types.

Can this switch handle motor loads?

Yes – the 630A/1000A frame is rated for mixed motor and resistive loads. Confirm the total starting inrush with our engineers to select the correct rating.

Is the switch suitable for mains-to-mains changeover?

Yes. Both mains-mains and mains-generator changeover are supported, with adjustable time delays to avoid nuisance switching on momentary dips.

Do you supply the transfer controller?

Yes – the switch ships with the controller and can integrate with your genset ATS panel. Standalone switch options are also available.

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