Schneider Altivar 61/71 Guía De Explotación página 38

Installation - Wiring
Installation recommendations for braking units VW3 A7 102, 103 and 104
min. 100 mm
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BU
min. 100 mm
The resistor body (degree of protection IP23) can reach a temperature of 350°C (662°F).
These resistors must be placed where there is no risk of direct contact and kept away from all other equipment.
Ventilation must be provided to evacuate the dissipated energy.
1757084 11/2009
The braking unit is designed to be installed vertically. It is connected from below. If it is wired correctly, the braking
unit provides IP20 protection.
The braking unit is cooled by a built-in fan. It is therefore important that air can circulate freely around the braking
unit.
The cooling air should be dry and contain no dust or gas.
Install the unit vertically +/- 10.
Avoid placing it close to heating elements. It is especially important to ensure there are no heating elements under the
drive or braking unit.
Leave sufficient free space to ensure that the air required for cooling purposes can circulate.
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Installation recommendation for braking resistors
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