Metro - C.E.V.
For cabinets and enclosures in outdoor or remote areas where equipment rooms are unavailable or undesired – for non-extreme environments
The Metro unit maintains internal cabinet temperature by allowing controlled external ventilation and internal circulation to avoid ‘hot spots’. This gives the housed electronics and batteries the ability to work at their maximum performance levels through seasonal weather variations.
The Metro's are manufactured to suit any type of cabinet/enclosure. They provide an ideal environment for your equipment that’s reliable, secure, economical and safe.
External vents are fitted with rain hoods and filters to protect against weather, dust and insects. The upper vent allows ventilation to prevent hydrogen build-up.
Ventech recommends the use of Polyester or Polycarbonate enclosures or cabinets depending on specific installation requirements and environmental conditions.
Ideal for:
Remote cell sites - airport runways - traffic lights - weather tracking stations - lighthouses - security systems - basements - roof tops - car parks
Features:
Test Results 150W Heat Load
With a heat load of 150 watts inside the cabinet and the venting system set to operate at 25°C it can be seen that the internal cabinet temperature is maintained well above the ambient temperature until the venting system operates.
The black dotted line tracks TAMBIENT and TCABINET as if there were no restrictions to heating or cooling.
Test Results 265W Heat Load
With an internal heat load of 265 watts and the venting system set to operate at 25°C, the operational temperature shape of the cabinet is clear. TMAX 24.2°C, TMIN 5°C gives a
T3 of 19.2°C where temperatures are reasonably constant. Below TMIN, cabinet temperatures are still maintained well above the ambient temperature.
Insulation
Cabinets are insulated with a thermal insulation material made from Polysafe, an environmentally friendly polyolefin foam, to control heat loss, prevent condensation, to reduce noise and vibration.
External Vents
External vents are fitted with rain hoods and filters to protect against weather, dust and insects. The upper vent allows ventilation to prevent hydrogen build up.
Cabinets
Ventech recommends the use of Polyester or Polycarbonate enclosures or cabinets depending on specific installation requirements and environmental conditions.
Ideal Locations
Remote Cell Sites - Airport Runways - Traffic Lights - Weather Tracking Stations - Lighthouses - Security Systems - Basements - Roof Tops - Car Parks
Security
The outer cabinet is accessed by key entry and has no external screws or fittings. This provides a secure environment for your equipment.
Patents
NZ2004/000173 |
Patent Co-operation Treaty |
Granted |
527368 |
New Zealand |
Granted |
2004301898 |
Australia |
Granted |
ZL200480025212.X |
China |
Granted |
2419745 |
United Kingdom |
Granted |
2534446 |
Canada |
Granted |
7604534 |
USA |
Granted |
2006/01868 |
South Africa |
Granted |
Specifications:
Circulation and External Venting Unit

Cabinet Specifications
Material Polycarbonate, Stainless Steel, Sheet metal (dipped coat primed & powder coated), Polyester & Aluminium Will depend on customer individual specifications and requirements Protection Category IP 56 to EN 60 529/10.91 IP 66 Complies with NEMA 12. For ES 5080.500 Complies with NEMA 12. (Will depend on customer individual specifications and requirements) Thermostat Specifications • Permissible contact load AC-5 (0.2)1)A DC=max. 20W (1)=Inductive load at cos = 0.6 • Setting range 50 – 100% relative humidity • Dimensions 71 x 71 x 33.5 mm • Switching difference approx. 4% • A broad voltage spectrum i.e. just one model covers 24 to 230 V • Time-saving connection technique using a terminal strip with a screw connection from the outside • Flexiable mounting on a vertical or horizontal 35 mm support rail to EN 50 022, and snap fasting in the TS/ES enclosure section using the supplied adaptor Fan Specifications Axial Fan Unit 105/120 cubic metres of air an hour Temperature range = 10 degs to +55 degs Noise Level = 46/49 dB (A) Protection Catagory = IP54 Colour RAL7035 |
Insulation Specifications Material Closed cell polyolefin form Density (DIN 53571) 25Kg / m³ Thermal Conductivity (JIS A 1413) @ 20C 50 – 70% R.H = 0.032 W/m.K Working Temperature -80º to 100ºC Noise Reduction Co-efficient 0.15 (AS1045-1971) Chemical Resistance Water (unaffected) Sea water & brine Soaps & detergents Diluted acids Diluted detergents / alkalis Alcohol Ketones Esters Tensile Strength (DIN 53571) Lengthwise 4.1 kPa / mm² Crosswise 3.0 kPa / mm² |
Fire Ratings
Fire Test Standard AS 1530.3 (1989) BS 476 part 6 BS 476 part 7 BS 476 parts 6&7 FMVSS 302 |
Foil Ignitability: Spread of flame Heat evolved index Smoke develop index F.P.I Index Class 1 Class 0 Pass |
0 0 0 0-1 7.9 |
Filter Mat Specifications
Made of chopped-fibre mat with a progressive structure Temperature resistant to 100ºC Self extinguishing category F1 to DIN 53 438 Reliable filtering of virtually all types of dust from a particle size of 10µm |