9 | Electrical installation
Installer reference guide
53
2MXM-A9, 3MXM-A9, 4MXM-A9, 5MXM-A9
R32 Split series
4P600463-7G – 2022.09
9.1.3 Specifications of standard wiring components
Component
Power supply cable Voltage 220~240V
Current See table below (A)
Phase 1~
Frequency 50Hz
Wire size MUST comply with national wiring
regulation.
3-core cable
Wire size based on the current, but not
less than 2.5mm
2
.
Interconnection
cable
(indoor↔outdoor)
Voltage 220~240V
Wire size Only use harmonised wire providing
double insulation and suitable for
applicable voltage.
4-core cable
Minimum 1.5mm
2
Recommended circuit breaker See table below (B)
Earth leakage circuit breaker / residual
current circuit breaker
MUST comply with national wiring
regulation
Model A B
3MXM40 16.0A 16A
2MXM68 19.8A 20A
3MXM52 16.3A
3MXM68 19.8A
4MXM68 19.8A
4MXM80 20.4A 25A
5MXM90 25.9A 32A
Electrical equipment must comply with EN/IEC 61000-3-12, the European/
International Technical Standard setting the limits for harmonic currents produced
by equipment connected to public low-voltage systems with input current >16 A
and ≤75 A per phase.
9.2 To connect the electrical wiring to the outdoor unit
1 Remove the switch box cover (1 screw).