The enclosure houses MV switchgear and control panels. The unit shown contains start-up and incoming/outgoing cubicles for a 10 kV system, alongside storage control, valve-control, intelligent auxiliary-system and AC supply panels. Industrial air conditioning, fire alarms and control interfaces, lighting, emergency lighting, video surveillance and LV auxiliaries are integrated to the selected delivery scope. ETENZ sets out the enclosure to the system supplier's panel layout.
ISO 14001
ISO 45001
ISO 9001
Medium-Voltage Direct-Connect BESS Control Enclosure
For MV direct-connect BESS suppliers and main contractors: enclosures and subsystem integration, from bare-shell supply to OEM/ODM.
Battery Energy Storage StationRenewable Energy Collector Station SupportRenewable Grid-Connection Power Distribution
Key Metrics
Custom
Size
C3-C5
Corrosion
IP54 / 55
Protection
25years
Design life
Product Features
Shared equipment bay
Switchgear and control panels share one enclosure, giving the storage supplier a prefabricated control room to connect to the battery enclosure.
Shared equipment bay
Switchgear and control panels share one enclosure, giving the storage supplier a prefabricated control room to connect to the battery enclosure.
Direct front access
Two pairs of double doors on the long side give direct access to cabinet fronts for equipment handling, operation and maintenance.
Layout-led sizing
Enclosure dimensions follow the cabinet layout and service clearances, with transport arrangements agreed as part of the quotation.
Cabinet cooling
Industrial air conditioning at both ends provides cooling and dehumidification matched to equipment heat loads and the local climate.
Alarm visibility
External sounder-beacons and protected manual call points let personnel see and raise a fire alarm before entering the enclosure.
Factory-fit services
Factory-installed lighting, ventilation, video surveillance and LV auxiliaries reduce the amount of enclosure wiring left for the site.
Product Details
The start-up cubicle and incoming/outgoing cubicles face a pair of double doors on the long side, providing direct access for operation and maintenance. A cable trench with removable covers runs beneath the switchgear; cable entry direction and trench routing follow the single-line diagram and selected cubicle dimensions. The unit shown houses 12 kV fixed-type enclosed switchgear for a 10 kV system. Switchgear is customer-supplied or included in the agreed integration scope, with ratings defined by the equipment supplier; ETENZ provides mounting positions, cable trenches and enclosure interfaces.
The control area accommodates the storage control cabinet, valve-control cabinet and intelligent auxiliary-system panel in rows. Front and rear access space supports wiring and maintenance, while overhead trays and trunking route control and communication cables to the cabinets. Mounting positions, earthing connections and cable openings are prepared to the system supplier's panel layout so its cabinets can be positioned and connected on arrival.
AC supply panels occupy one row, with storage control and intelligent auxiliary-system panels in the other. The main cable tray runs above the central aisle, with smoke and heat detectors paired along its route. Linear LED lights and emergency lighting serve the aisle. Aisle width, front and rear cabinet clearances and escape direction follow equipment dimensions and project requirements.
A wall-mounted fire alarm control panel with control outputs receives signals from zoned smoke and heat detectors; input/output modules are grouped in a fire-system module box. Outside each pair of doors are a sounder-beacon and a manual call point with a protective cover. Alarm and control signals can connect to the storage EMS or station control system. Additional gas fire suppression is specified to the project's requirements.
Each end wall carries one recessed industrial air conditioner, with its condenser side outside and evaporator side inside. Local thermostatic control provides cooling and dehumidification for the switchgear and control panels. Capacity is selected for equipment heat dissipation, local climate and enclosure protection requirements. The wall openings are sealed around the units, and power comes from the enclosure's auxiliary distribution board.
A roof-mounted axial fan has a perforated stainless-steel guard, and a filtered fan louvre sits high on the doorless end wall for air exchange. A dome camera above the switchgear area can connect to the intelligent auxiliary system or the station video system. Access control, water-ingress detection and temperature/humidity monitoring are configured to project requirements.
Delivery Scope Options
Scope 1
Bare-Shell Supply (Interfaces Reserved)
Scope 1Bare-Shell Supply (Interfaces Reserved)
The container-style enclosure arrives with two pairs of side doors, cable trenches, cabinet mounting positions, air-conditioning and fan openings, and earthing terminals prepared to the layout. The customer installs the internal systems.
Scope Includes:
Container-style enclosure with two pairs of side doors
Under-cabinet cable trenches and removable covers
Rock-wool insulation, corrosion protection and door seals
Air-conditioning and fan openings with earthing terminals
Technical Specifications
External dimensions
8000 × 3200 × 3450 (unit shown, non-standard container-style enclosure; dimensions adapted to panel layout)
mm
Enclosure construction
2.0 mm galvanized roof sheet, 1.6–2.0 mm corrugated wall sheet, 50 mm rock-wool insulation, channel-section and square-tube frame
Doors
Two pairs of double doors on the long side, galvanized locking bars, sealing strips and door earthing bonds
MV switchgear
Start-up and incoming/outgoing cubicles; unit shown arranged for a 10 kV system with 12 kV fixed-type enclosed switchgear; other voltage levels subject to cubicle dimensions; customer-supplied or integrated within the agreed scope
Control panels
Storage control, valve-control, intelligent auxiliary-system and AC supply panels, supplied by the system vendor and installed to the panel layout
Cable routing
Under-cabinet cable trenches with removable covers, overhead trays and trunking; cable entry and exit directions follow the single-line diagram
Climate and ventilation
One recessed industrial air conditioner in each end wall, sized for equipment heat loads; roof axial fan and filtered end-wall fan louvre
Fire alarm
Fire alarm control panel with control outputs, smoke and heat detection, external sounder-beacons and manual call points, control interfaces
Video and security
Dome camera; access control, water-ingress detection and temperature/humidity monitoring to project requirements
LV auxiliaries
LV auxiliary distribution, lighting and emergency lighting, sockets, internal wiring and cable trays
IEC 61439-1 / -2
Earthing
Earth bar, PE conductors and equipotential bonding; site earth grid defined separately
Ingress protection
IP54 / IP55
IEC 60529
Corrosivity category
C3–C5 (selected for the environment)
ISO 12944
Design life
25
years
Transport
Wider than a standard shipping container; oversize road transport and non-standard cargo booking for sea freight
Factory inspection
Enclosure-level checks: structure, fire-system control functions, LV circuits, ingress protection and earthing
Warranty
12 (extendable to 24)
months
| Parameter | Specification |
|---|---|
| External dimensions | 8000 × 3200 × 3450 (unit shown, non-standard container-style enclosure; dimensions adapted to panel layout) mm |
| Enclosure construction | 2.0 mm galvanized roof sheet, 1.6–2.0 mm corrugated wall sheet, 50 mm rock-wool insulation, channel-section and square-tube frame |
| Doors | Two pairs of double doors on the long side, galvanized locking bars, sealing strips and door earthing bonds |
| MV switchgear | Start-up and incoming/outgoing cubicles; unit shown arranged for a 10 kV system with 12 kV fixed-type enclosed switchgear; other voltage levels subject to cubicle dimensions; customer-supplied or integrated within the agreed scope |
| Control panels | Storage control, valve-control, intelligent auxiliary-system and AC supply panels, supplied by the system vendor and installed to the panel layout |
| Cable routing | Under-cabinet cable trenches with removable covers, overhead trays and trunking; cable entry and exit directions follow the single-line diagram |
| Climate and ventilation | One recessed industrial air conditioner in each end wall, sized for equipment heat loads; roof axial fan and filtered end-wall fan louvre |
| Fire alarm | Fire alarm control panel with control outputs, smoke and heat detection, external sounder-beacons and manual call points, control interfaces |
| Video and security | Dome camera; access control, water-ingress detection and temperature/humidity monitoring to project requirements |
| LV auxiliaries | LV auxiliary distribution, lighting and emergency lighting, sockets, internal wiring and cable trays IEC 61439-1 / -2 |
| Earthing | Earth bar, PE conductors and equipotential bonding; site earth grid defined separately |
| Ingress protection | IP54 / IP55 IEC 60529 |
| Corrosivity category | C3–C5 (selected for the environment) ISO 12944 |
| Design life | 25 years |
| Transport | Wider than a standard shipping container; oversize road transport and non-standard cargo booking for sea freight |
| Factory inspection | Enclosure-level checks: structure, fire-system control functions, LV circuits, ingress protection and earthing |
| Warranty | 12 (extendable to 24) months |
Product FAQs
The MV direct-connect BESS enclosure houses power modules and battery cabinets, with emphasis on insulated supports, electrical clearances and equipotential bonding. The control enclosure houses MV switchgear and control panels, with emphasis on operating access, cable routes, secondary wiring and climate control. Both enclosures work together in a cascaded, direct-connect BESS, and ETENZ manufactures both types.
Control enclosure and main control house can describe the module containing MV switchgear and control panels for a direct-connect BESS unit. A substation control building generally serves the whole station and houses station control, protection and communication panels, usually without MV switchgear. ETENZ can manufacture either enclosure to the panel layout and integrate air conditioning, fire alarms and lighting.
The unit shown is arranged for a 10 kV system using 12 kV fixed-type switchgear. Common direct-connect storage connection voltages include 6 kV, 10 kV and 35 kV. For other voltage levels, enclosure dimensions and cabinet positions are established from the selected switchgear dimensions and maintenance clearances.
The unit shown measures 8000 × 3200 × 3450 mm. It is a non-standard container-style enclosure, wider than a standard shipping container, and has no CSC approval. Road transport is arranged as oversize cargo; sea freight is booked as non-standard cargo, typically on a flat rack or a breakbulk vessel. Dimensions can follow the cabinet layout and maintenance aisles, and transport arrangements are confirmed with the quotation.
ETENZ offers both. Subsystem Integration covers industrial air conditioning, ventilation, lighting, LV auxiliaries, fire alarms and video/security equipment within the agreed scope. Finished Cabin Delivery also includes factory installation of the customer's switchgear and panels. Bare-Shell Supply (Interfaces Reserved) provides the enclosure with openings, cable trenches and earthing terminals prepared for the customer's own fit-out.
ETENZ builds the enclosure to the customer's panel layout. A quotation requires the layout or equipment list with each cabinet's dimensions, weight and heat dissipation, the single-line diagram and cable entry directions, system voltage, delivery scope and site location. These define the enclosure dimensions, cable trenches and air-conditioning capacity.
Price depends on enclosure dimensions, delivery scope, corrosion protection, the air-conditioning and fire-system package supplied by ETENZ, transport method and destination requirements. Lead time follows the production schedule established after drawing approval and is stated with the quotation.
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