NLB series monobloc concrete kiosks, manufactured from C35 concrete according to the TEDAŞ MYD/2000-36.A specification, are designed for use in secondary distribution systems up to 36 kV, housing modular switchgears and other medium voltage switching and distribution products in open areas.

In production since 2014, our monobloc concrete kiosks are economical, reliable and aesthetic, and are designed for fast installation and easy commissioning.

Features

Kiosks consist of a high voltage switching section, a medium voltage distribution transformer section and a low voltage distribution panel section. Each section has its own independent access doors and ventilation louvres.

Advantages of the system:

No foundation required on any type of ground
Suitable for the minimum bending radius of 36 kV single-core 240 mm² cable
Maximum operator safety in case of internal arc
Compact and aesthetic structure, easy transport
Wide range of solutions for projects
High quality assured by factory testing

Exteriors are painted as standard in RAL 5800 with silicone-based textured exterior paint; different colour options are offered to match site plans. The cable gallery at the bottom of the kiosk allows cable entry and exit in any direction and quantity through reinforced knock-out openings.

Structural Properties

The design and manufacture of the monobloc concrete kiosk takes into account the most demanding operating conditions, with pressure resistance and seismic calculations. Section dimensions are determined according to the recommendations of LV switchgear and transformer manufacturers and the relevant specifications, observing the required safety clearances.

220 V lighting installation is standard in all sections
Live and moving parts are protected against dust and water per IEC 60529; the kiosk is waterproof and ventilation panels are rated IP 23
Lifting pins at all four corners for safe handling
Underground parts are coated with insulating material
Expanded aluminium mesh on ventilation doors resists impacts from inside and outside
All metal parts are bonded to the equipotential busbar; the external earthing connection is made on site by the user
Doors in custom sizes are available for special projects

Kiosks are dispatched after the routine tests specified in the relevant standards. Type tests performed in accredited laboratories demonstrate resistance to internal arc faults.

Dimensions

Kiosk Type	Length (mm)	Width (mm)	Height (mm)	Footprint (m²)	Empty Weight (kg)
NLB B250	2,500	2,500	3,500	6.25	~10,000
NLB B310	3,100	2,500	3,500	7.75	~13,000
NLB B430	4,300	2,500	3,500	10.75	~16,000
NLB B525	5,250	2,500	3,500	13.13	~18,000
NLB B645	6,450	2,500	3,500	16.13	~22,000
NLB B730	7,300	2,500	3,500	18.25	~25,000

Foundation Dimensions

Kiosk Type	Kiosk Base (mm, W×L)	Excavation (mm, W×L×D)	Concrete Foundation (mm, W×L)
NLB B250	2500×2500	3500×3500	3000×3000
NLB B310	2500×3100	3500×4100	3000×3600
NLB B430	2500×4300	3500×5300	3000×4800
NLB B525	2500×5250	3500×6250	3000×5750
NLB B645	2500×6450	3500×7450	3000×6950
NLB B730	2500×7300	3500×8300	3000×7900

Configurations

NLB – Type 1: 1 transformer up to 1000 kVA; MV switchgears with 1 incoming + 1 outgoing + 1 transformer protection function; 1 low voltage panel.

NLB – Type 2: 2 transformers up to 800 kVA; MV switchgears with 1 incoming + 1 outgoing + 2 transformer protection functions; 2 low voltage panels.

Handling and Unloading

A crane with at least twice the kiosk weight capacity must be used
Remember that lifting capacity decreases as the crane arm extends
Insert the lifting pins fully into the holes on the four corners before attaching the crane ropes (chains)
Place the kiosk on the prepared foundation base without shaking
Roofs are removable; use the roof lifting pins
Review the handling and operating instructions provided inside the kiosk

NLB Series Concrete Kiosks

Technical Specifications