How do you arrange automatic backup power transfer for a residential development with multiple independent buildings?
For a project serving 18 villas in Saint Martin, AISIKAI supplied a residential ATS cabinet incorporating 18 SKT1 Series 160A automatic transfer switches. Each villa has a dedicated transfer circuit, with the switches integrated into one centralized cabinet.
The project illustrates how a multi-load ATS arrangement can combine separate residential circuits within a coordinated distribution design.
Project Item | Details |
|---|---|
Location | Saint Martin |
Application | Residential villa development with 18 villas |
Transfer switches | 18 units of AISIKAI SKT1 Series |
Circuit arrangements | One dedicated transfer circuit per villa |
Purpose | Transfer residential loads between normal and standby power |
Rated current | 160A per ATS |
Configuration | Centralized multi-circuit ATS distribution cabinet |
The 160A rating applies to each automatic transfer switch. It should not be interpreted as the current rating of the complete cabinet or the required capacity of the standby generator.
In this project, “multi-load ATS” describes a cabinet containing multiple automatic transfer switches serving separate loads. It does not mean that a single ATS independently controls 18 outgoing circuits.
This distinction matters when specifying equipment. A buyer requesting a multi-load solution should identify both the number of loads and the transfer arrangement required for each one.
Separate ATS circuits also do not automatically provide load prioritization, sequential loading or generator overload management. If these functions are required, they must be included in the control-system specification.
For contractors, a useful starting point is a single-line diagram showing the normal source, standby source, transfer switches, protective devices and outgoing feeders.
An ATS for home use should be selected around the electrical design of the property.
Before selecting equipment, confirm:
Calculated demand: Which loads must operate on backup power, and what is their expected simultaneous demand?
Starting loads: Will pumps, compressors or other motors create significant starting demand?
Supply configuration: What voltage, frequency, phase arrangement and neutral-switching requirements apply?
Backup capacity: Can the standby source support the intended loads?
Protection coordination: How will the transfer equipment work with the specified circuit protection?
Installation conditions: What enclosure, access and environmental requirements apply?
A 160Amp transfer switch is suitable only where the project’s electrical assessment supports that selection. Specifying a higher-current ATS does not increase the available generator output.Testing Before and After Cabinet Assembly.
For an individual home, the first decision is whether backup power will serve the whole property or selected essential circuits.
For a residential development, the design must also address how power is distributed between buildings.
Will each building have its own transfer circuit? Which loads may operate together? How will maintenance isolation and circuit identification be arranged?
These questions help determine whether a centralized cabinet with multiple ATS units is appropriate.
A shared standby supply also requires coordination between the transfer controls and generator system. Independent transfer circuits should not be assumed to mean independent backup sources.
The AISIKAI SKT1 motorised automatic transfer switch is the product series used in this application.
When requesting a similar solution, specify both the individual switch requirements and the complete cabinet requirements. Switch selection covers items such as current rating and control configuration. Cabinet design additionally covers incoming and outgoing connections, protective devices, wiring, identification and installation access.
Explore AISIKAI’s automatic transfer switch cabinet options when your project requires an integrated assembly.
For the Saint Martin project, AISIKAI reports testing individual Automatic Transfer Switch units before assembly and inspecting and testing the completed cabinet afterward.
For a comparable order, agree on the required inspection scope and documentation before production. Buyers can request confirmation of circuit identification, wiring checks and functional verification against the approved drawings.
This makes the acceptance criteria clear for the manufacturer, contractor and project owner.
AISIKAI has also worked on other ATS cabinet projects with customized configurations for different power distribution requirements.
Different projects may require different cabinet layouts, components and electrical arrangements.
AISIKAI can configure ATS cabinets according to the application requirements and project specifications.
Yes, an ATS can supply a distribution board serving several circuits, provided the system is appropriately designed. Those circuits share the transfer function. Separate transfer control requires a different arrangement, such as multiple ATS units.
Not necessarily. Multiple transfer switches provide separate transfer paths. Priority control and load shedding are additional functions that must be specified and verified.
No. Suitability depends on calculated demand, supply characteristics, backup capacity and the installation requirements. The Saint Martin configuration is a project example, not a universal residential specification.
Provide the number of buildings or circuits, load schedule, supply voltage and frequency, phase arrangement, generator details, required control functions and installation conditions. Include a single-line diagram where available.
Planning backup power for a home, villa development or residential compound?
Contact AISIKAI with your project drawings and load requirements to discuss SKT1 transfer switch selection and a suitable cabinet configuration.
