General information
ATS Cabinet — Uninterrupted 0,4 kV Power Supply
At industrial, medical, transport, educational and other facilities, a stable power supply is critically important. Power interruptions lead to serious consequences, which is why ATS (automatic transfer switch) cabinets are used — they ensure timely switching of the load to the backup source and return to the main source after its parameters are restored. Manufacturing is carried out by LK Energy Group: the process is controlled at every stage, and finished products undergo inspection and testing.
ATS Cabinet: Purpose and Functionality
The device automatically connects the backup source when the voltage on the main input disappears or its parameters go beyond the normal range, and restores power to the main input once it is back to normal. Activation occurs in the following cases:
- loss of voltage on the main input;
- loss or violation of phase sequence;
- voltage parameters going beyond permissible limits;
- emergency short circuit on the main source.
In each of these situations, the ATS cabinet switches the power supply, ensuring system stability. In addition, the device performs monitoring and control of parameters. The main advantage is minimising downtime and the associated financial losses during emergency outages.
Design and Components
The basis of the ATS cabinet is a galvanised steel enclosure (zinc coating mass 275 g/m²) that protects the internal components. Inside are located the control panel, protection devices, contactors, relays, measuring and monitoring instruments, and switching devices. Together they ensure automatic switching and protection of the system against overloads and emergency conditions. Air circuit breakers (ACB) or moulded-case circuit breakers (MCCB) are used as switching devices — the type and ratings are selected on a project-specific basis.
Technical Characteristics
| Parameter | Value |
|---|---|
| Rated voltage | 0,4 kV (380/220 V) |
| Rated current | project-specific / per TOR (based on calculated load) |
| Number of inputs | project-specific / per TOR (usually 2, less often 3) |
| IP protection rating | project-specific / per TOR (e.g., IP31 or IP54) |
| Switching logic and time | project-specific / per TOR |
| Enclosure material | galvanised steel, zinc coating 275 g/m² |
Reliability
The enclosure is fully metal, resistant to mechanical impact and moisture, and protects against unauthorised access. The wiring is insulated, markings are applied to the control panel, and the switching devices operate according to the specified logic. Each product is checked for compliance with the TOR requirements.
Manufacturing Lead Time
An ATS cabinet can be ordered to suit the requirements of the facility after the configuration has been agreed with a manager. The average manufacturing lead time is about 2 weeks (depending on complexity and component availability).
Warranty
Warranty — 2 years on the product (extended to 5 years by agreement); galvanised enclosure metalwork — 10 years.
Delivery
Shipping by our own logistics service or self-pickup. Delivery within Ukraine and abroad.
Completed Projects
ATS cabinets have been manufactured, in particular, for medical facilities in Odesa (the Municipal Clinical Infectious Diseases Hospital, Children's Municipal Hospital No. 3) and for a hospital in Mykolaiv.
Description and purpose
An ATS (automatic transfer switch) cabinet is a low-voltage 0.4 kV switchboard that automatically transfers the load from the main power source to a backup one (a second input, a diesel generator set, or a UPS) if the voltage disappears or its parameters go out of the normal range, and switches back once it is restored. It is designed for facilities where power interruptions are unacceptable: hospitals, data centers, pumping stations, boiler houses, manufacturing plants, shopping centers. All specifications — the number of inputs and outgoing lines, rated current, IP rating, switching logic and switching time — are selected to match your technical specification (TZ). We build ATS cabinets from 100 A; standard solutions cover 250–630 A, and among completed projects there is a 400 A “grid — diesel generator” ATS. The exact rating follows the calculated load. Manufactured by LK Energy Group, a switchgear manufacturer from Odesa (company since 2005, own factory since 2015): in-house production, inspection of every unit, built to project requirements.
Standard solution: 0.4 kV ATS — sizing for your facility →
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FAQ
What is the rated current and how many inputs does the ATS cabinet have?
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Automatic Transfer Switch (ATS) Cabinet
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