for housings, switch cabinets and devices > > > > > Low surface temperature Limited space requirement, just 3mm thick Even heat distribution over the whole surface Without ventilator – no dust whirls Maintenance-free, long service life Housings with electrical, electronic or mechanical installations are often subject to temperature fluctuations, which lead to condensation, corrosion and leakage currents. In order to guarantee the functional safety of these installation elements, it makes sense and is cost-efficient to create a balanced inside temperature. HORN heating consists of an anodised 1.5 mm thick aluminium plate vulcanised onto a 1.5 mm thick silicone heating film. A small amount of space is required thanks to this flat construction and extensive heat radiation is still provided. TECHNICAL DATA Operating voltage Electrical power Heating element Surface temperature 220 – 240 V, 50/60 Hz alternative 115 V, 50 Hz 40 W, 100 W, 200 W Silicone heating With bi-metal 65/45°C controller, higher temperatures can be reached without a temperature controller depending on the environmental conditions 0,5 m line 2 x 0,75 mm2 Aluminium Retainer bracket on TS 35 mounting rail or M4 screws IP X4 / 1 VDE + UL Technical changes are reserved. All details are provided without liability. The specified information does not release the customer from the obligation to perform independent application tests. / 15.10.2012 Flat heating plates Connection Plate Fixing Protection type/class Approvals INSTALATION NOTES ESTABLISHMENT OF NECESSARY HEATING POWER Installation must take place according to the valid VDE and CE guidelines for the respective application. The corresponding protection measure and contact protection are to be realised by the user with installation. To achieve good temperature control in the full space in the housing, the heating plate should be mounted in the lowest area. A distance of at least 10 mm to the side walls and 50 mm to the underside is required so convection can form. A distance of 35 mm to thermo-plastic parts is recommended. A separate room temperature controller in front of the heating plate must be switched to control the inside housing temperature. The necessary heating power depends on the following parameters: > Location (inside, outside), switch cabinet size (surface) > Environmental temperature, material, insulation, loss power of installed components > An estimated calculation is possible as follows: a.) Standstill heating: inside P = T (K x A) outside P = T (K x A) x2 b.) Operating heating: inside P = T (K x A) – Pv (Installation devices switched on) outside P = T (K x A) x2 – Pv P = required heating power T = Temperature difference between the required average switch cabinet inside temperature and environmental temperature K = heat transmission figure (for steel sheet metal 5 – 6 W/m2 K) A = overall free-standing housing surface in m2 Pv = overall installed loss power in W ORDER DETAILS El. power Watt Voltage Volt Temperature controller All designs are also available in a 115 Volt version. Fixing brackets to clip the heating elements onto a profile rail (TS 35) > 150 mm length type 50168 > 200 mm length type 107547 > 300 mm length type 50169