Protecting The Motor; Residual Current Circuit Breaker - SystemAir DVC Montageanleitung

7.6

Protecting the motor

WARNING
Danger from electrical voltage!
Observe the 5 rules of electrical safety when conducting all kind of work on the motor (see
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section 2.5)!
" Avoid phase failures: If using 3-phase motors, use an all-pole C or K circuit breaker (see name plate for current
consumption).
7.7 Earth wire transition resistance according to EN 61800 -5-1
CAUTION
Check compliance with the impedance specifi cations as per EN 61800-5-1 for the earth
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connection circuit in the end application.
Connect a further protective earth wire via the additional connection point on the device,
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depending on the installation situation. The earth wire connection point is located on the
housing. It has a bore hole and an earth wire symbol.
7.8

Residual current circuit breaker

" Only use universal RCDs (type B or B+).
Note
" Use RCDs with a trigger threshold of 300 mA and delayed trigger (super-resistant, K characteri-
stic).
" This prevents pulsed charging currents from the capacitors in the integrated EMC fi lter when
activating the voltage supply.
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