Rational iCombi Pro Original Installation Instructions page 45

Observe the NFPA 70/NEC and CSA C22.2 regulations.
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Only use power cables in accordance with NEC/NEMA or local code regula-
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tions.
Only connect the device using copper cables. The cables must meet the ap-
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plicable regulations.
Color coding of the conductors
Observe the color coding of the conductors and country-specific deviations.
Color of the conductor
Yellow/green
Blue
Brown, gray or black
RCD fault-current circuit breaker
All devices are installed with a protective conductor terminal. It may also be
necessary to include a RCD type B fault-current circuit breaker when installing
the device to comply with country-specific standards and regulations.
Device size 6 half size GN to 20 full size GN
Connect the device to a ground fault circuit interrupter in accordance with the
table Connected loads of different voltage types [} 58].
Device size XS GN
Voltage waveforms with neutral conductor ("NAC"): Connect the device to a
ground fault circuit interrupter in accordance with the table Connected loads of
different voltage types [} 58].
Voltage waveforms without neutral conductor ("AC"): Connect the device to a
ground fault circuit interrupter in accordance with the table Connected loads of
different voltage types [} 58].
Notes on floor devices
The maximum output impedance on the grid connection point is 0.09 Ω.
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The cross-sections of the connection cables are based on the power con-
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sumption and local regulations.
Notes on UltraVent/UltraVent Plus condensation hood
For devices with a condensation hood, disconnect both device from the power
supply before servicing.
Before disconnecting the power cord from the power supply or reconnecting
the device, make sure that the device is switched off to prevent the condensa-
tion hood from starting up.
80.06.083_iCombiPro-iCombiClassic_IM_en-US
6 | Electrical connection
Function of the conductor
Protective conductor (Ground)
Neutral conductor (neutral)
Phase L1, L2, L3
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