Enphase Energy HCS-D Serie Manual De Instrucciones página 12

HCS-D User Manual
INSTALLATION - SERVICE CONNECTIONS
CAUTION: To reduce the risk of fire, connect only to a
circuit provided with the appropriate maximum branch
circuit overcurrent protection in accordance with the
National Electrical Code, ANSI/NFPA 70 (US) or the
Canadian Electric Code C22.2 NO. 280-13 (Canada).
Table 2: Service Connections for Standard and Ruggedized
HCS-D
HCS-D Model
HCS-D40R (Hardwired)
HCS-D40PR NEMA 14-50P
HCS-D50R (Hardwired)
HCS-D50PR NEMA 14-50P
CAUTION: This is a single-phase device. Do not connect
all three phases of a 3-phase feed! You may use any two
phases of a three phase wye-transformer feed. The
centerpoint of the three phases (usually used as Neutral)
must be grounded somewhere in the system. A Neutral
connection is not required by the HCS-D. Only Line 1, Line
2, and Ground are required, as shown in Figure 3.
CAUTION: The two phases used must each measure 120V
to Neutral. Earth Ground must be connected to Neutral at
only one point, usually at the service entry breaker panel.
CAUTION: If a 240V 3-phase feed is from a Delta-
connected secondary, the leg used must have a center-tap.
That tap must be Grounded. Only the two phases on either
side of the center-tapped leg can be used. See Figure 4.
CAUTION: Warranty is void if this unit is not wired
properly.
Circuit Breaker Rating
40A
40A/50A
50A
50A
12
Receptacle Type
n/a
NEMA 14-50R
n/a
NEMA 14-50R