Protecting The Motor; Earth Wire Transition Resistance According To En 61800 -5-1; Residual Current Circuit Breaker - SystemAir AxZent Betriebsanleitung

8.5

Protecting the motor

WARNING
Danger from electrical voltage!
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Observe the 5 rules of electrical safety when conducting all kind of work on the motor (see 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).
8.6

Earth wire transition resistance according to EN 61800 -5-1

CAUTION
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Check compliance with the impedance specifi cations as per EN 61800-5-1 for the earth connection circuit in the
end application.
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Connect a further protective earth wire via the additional connection point on the device, 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.
8.7

Residual current circuit breaker

Only use universal RCDs (type B or B+).

Personal protection is not possible when operating the device with RCDs, as with frequency inverters.
RECOMMENDATION
Use RCDs with a trigger threshold of 300 mA and delayed trigger (super-resistant, K characteristic).

This prevents pulsed charging currents from the capacitors in the integrated EMC fi lter when activating the vol-

tage supply.
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Electrical connection