Product overview
An ATS panel monitors available power sources and transfers the connected load according to an approved operating sequence. The correct design depends on the number of sources, switching arrangement, neutral treatment, generator signals, transfer timing and critical-load requirements. Zejiefu develops the panel around the submitted sequence of operation and single-line diagram.
Configurable engineering scope
- Two-source or project-specific transfer arrangement
- ATS device or interlocked breaker configuration
- Automatic, manual and test operating modes
- Voltage monitoring, time delays and generator start signals
- Mechanical and electrical interlocking with status indication
Typical applications
- Emergency and standby power distribution
- Commercial buildings and public facilities
- Industrial critical loads and utility systems
- Data and communications rooms under the approved design
Information required for quotation
- Normal and standby source ratings
- Load current and short-circuit level
- Three-pole or four-pole switching requirement
- Transfer sequence and timing requirements
- Generator interface and remote monitoring points
Standards, drawings and inspection
The applicable IEC standard, routine inspection scope, drawing format and project documentation must be confirmed against the technical specification. Ratings and compliance statements are not assumed before engineering review. Approved general-arrangement drawings and component schedules form the basis for production.
Frequently asked question
Can an ATS panel use a project-specific transfer sequence?
Yes. Operating logic, time delays, source priorities and generator interfaces should be confirmed in the approved control narrative.
Application solutions and RFQ guidance
Commercial standby-power applications | Critical-load distribution
Before requesting a configuration, review the SLD and BOQ preparation guide.
BOQ and RFQ are different documents
For procurement terminology and document responsibilities, read BOQ vs RFQ for electrical switchgear projects.
ATS sequence information to include in the RFQ
| Input | Details required |
|---|---|
| Power sources | Normal, standby or generator source voltage, current and fault level |
| Switching arrangement | ATS device or interlocked breakers, three-pole or four-pole requirement |
| Transfer logic | Source priority, failure thresholds, time delays, open or closed transition if specified |
| Generator interface | Start signal, available signal, cool-down logic and responsibility boundary |
| Manual operation | Manual, test and bypass requirements plus safe operating interlocks |
| Remote interface | Status, alarms, communication protocol and points list |
Coordinate critical loads and downstream equipment
The transfer sequence should consider downstream motor restarting, inrush current and process requirements. Where grouped motor loads are involved, coordinate the sequence with the MCC motor control centre and the approved control narrative.
Use the SLD and BOQ RFQ guide and the IEC 61439 procurement checklist when issuing the enquiry.
Additional ATS questions
When should four-pole switching be reviewed?
The neutral switching requirement depends on the earthing arrangement, source configuration and project design. It should be confirmed by the responsible electrical designer rather than assumed from the load current.
What generator signals are normally coordinated?
The control narrative should identify generator start, source available, transfer permission, return-to-normal delay and cool-down requirements, together with the interface responsibility.
Industrial transfer panels and ATS assemblies
An industrial transfer panel is commonly specified as an automatic transfer switch panel or an interlocked-breaker transfer assembly. The correct arrangement depends on the normal and standby sources, rated current, fault level, neutral switching requirement, transfer sequence and generator interface.
For motor or process loads, the sequence should also address restart timing, inrush current and permissible interruption. Show both sources and the essential-load section on the SLD and BOQ package.
Request an Industrial ATS Panel Quote
Configuration inputs
Provide the single-line diagram, required standard, system ratings, installation conditions and preferred component make. Our technical response will identify the proposed scope and any deviations.
Available options
Electrical scheme, enclosure construction, cable entry, protection, metering, component make, IP rating, packing and documentation are configurable to the approved project scope.
Frequently asked questions
Can this equipment be manufactured to our SLD?
Yes. The final configuration is developed from approved drawings, ratings and component schedules.
Which documents are needed for a quotation?
Send the SLD, BOQ or specification, quantity, destination country and requested delivery schedule.
Are tests and reports available?
Available routine tests and documents depend on product scope. Only confirmed reports will be included in the proposal.