SMC Networks HRR050-A 20 Series Operation Manual page 29

 Power supply specifications, power supply cable and earth leakage breaker
Prepare the power supply shown in the following table. For the connection between the product and
power supply, use the power supply cable and earth leakage breaker shown below. An earth leakage
breaker must be mounted to a position where the breaker is easily accessible and close to the
thermo-chiller.
Table 3-3 Power supply cable and earth leakage breaker (
Model
(High pump head
[Optional])
HRR050-A/W-20-
HRR050-A/W-40-
 Installation/operation in accordance with the UL standard
For operate the product with the UL compliant conditions, the conditions shown below must be
satisfied:
● Use power supply of overvoltage category 2 (transient overvoltage 2500 V or less)
1 When using a power supply in the overvoltage category 3, take measures such as
mounting an isolation transformer between the product and the power supply or keep the
transient overvoltage of the power supply to 2500 V or less by using a varistor, etc.
HRR Series
Power supply
voltage
1-phase
200-230V AC
(50/60Hz)
3-phase
380-415V AC(50/60Hz)
460-480V AC(60Hz)
Chapter 3 Transport and Setting Up
Recommended
Recommended earth
Cable
qty.
Rated current
x size
(A)
3 cores
x12AWG
(3 cores x
20
2
3.5mm )
(including
ground)
4 cores
x14AWG
(4 cores x
10
2
2.0mm )
(including
ground)
HRX-OM-X071
)
leakage breaker
Sensitivity
of leak current
[mA]
30
3.3 Installation
 1
3-9