Lenze DSD - Manual (Page 371)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
371
12 Components in the DC bus
12.6 Brake resistor selection
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12.6.4 IP enclosure
The brake resistor can be jeopardised by the ingress of objects, dust, and liquids.
• Select an enclosure which ensures that the brake resistor is sufficiently protected against the in-
gress of objects, dust, and liquids.
Excerpt from DIN 40050
Protection against accidental contact/protection against ingress of solid foreign bodies
Protection against water
Enclosure Function
IP 2x Protection against ingress of solid foreign bodies with a diameter greater than 12 mm (medium-
sized foreign bodies).
Keeping away fingers or similar objects.
IP 5x Protection against harmful dust deposits.
• The ingress of dust is not prevented, but the dust shall not enter in such quantities that the op-
eration of the apparatus is affected (dust-protected).
Complete protection against contact.
IP 6x Protection against the ingress of dust (dust-proof).
Complete protection against contact.
Enclosure Function
IP x3 Protection against water falling at any angle up to 60° from the vertical (splashing water).
IP x4 Protection against water splashing against the apparatus enclosure from any direction (splashing
water).
IP x5 Protection against a water jet directed against the enclosure from any direction (water jet).