Hitachi YUTAKI S Series Technical Catalogue page 120

9 Electrical and control settings
Electrical connection
9.3.2 Minimum requirements of the protection devices
!
C A U T I O N
• Ensure specifically that there is an Earth Leakage Breaker (ELB) installed for the units (outdoor and indoor unit).
• If the installation is already equipped with an Earth Leakage Breaker (ELB), ensure that its rated current is large enough to hold the
current of the units (outdoor and indoor unit).
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N O T E
• Electric fuses can be used instead of magnetic Circuit Breakers (CB). In that case, select fuses with similar rated values as the CB.
• The Earth Leakage Breaker (ELB) mentioned on this manual is also commonly known as Residual Current Device (RCD) or Residual
Current Circuit Breaker (RCCB).
• The Circuit Breakers (CB) are also known as Thermal-Magnetic Circuit Breakers or just Magnetic Circuit Breakers (MCB).

Split system - Outdoor unit
Model
RAS-2WHVRP
RAS-2.5WHVRP
RAS-3WHVRP
MC: Maximum current; CB: Circuit breaker; ELB: Earth leakage breaker
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Split system - Indoor unit
YUTAKI S
Power
Model
supply
RWM-(2.0-3.0) 1~ 230V
NRE(-W) 50Hz
?
N O T E
The data corresponding to DHW tank heater is calculated in combination with the domestic hot water tank accessory
"DHWT-(200/300)S-3.0H2E".
YUTAKI S COMBI
Power
Model
supply
RWD-(2.0-3.0)
1~ 230V
NRW(S)E-(200/260)
50Hz
S(-K)(-W)
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Monobloc system - YUTAKI M
Power
Model
supply
RASM-2VRE
1~ 230V
50Hz
RASM-3VRE
?
N O T E
The data corresponding to DHW tank heater is calculated in combination with the domestic hot water tank accessory "DHWT-(200/300)S-3.0H2E".
112 TCGB0123 rev.2 - 10/2019
Applicable voltage
Power supply
U max. (V)
1~ 230V 50Hz 253
Applicable voltage
U max. U min.
(V) (V)
Without electric heaters
With electric heater
253 207
With DHW tank heater
With electric and DHW tank heaters
Applicable voltage
U max. U min.
(V) (V)
253 207
Applicable voltage
U max. U min.
(V) (V)
253 207
MC
(A)
U min. (V)
10.4
207 12.9
15.8
Operation mode
Operation mode
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Operation mode
Without DHW tank heater
With DHW tank heater
Without DHW tank heater
With DHW tank heater
CB ELB
(A) (nº of poles/A/mA)
16
16 2/40/30
20
ELB
MC CB
(nº of
(A) (A)
poles/A/mA)
0.2 5
14.6 16
2/40/30
14.6 16
28.9 32
ELB
MC CB
(nº of
(A) (A)
poles/A/mA)
0.2 5
14.6
16
2/40/30
12.7 16
27.1 32
ELB
MC CB
(nº of
(A) (A)
poles/A/mA)
10.6 16
23.1 32 2/40/30
16.0 20
28.5 32 2/40/30