Alpha Technologies PWE-6FT - Manual (Page 25)

25 031-259-B0-001, Rev A
2.0 Installation, continued
2.5 Connecting the Utility Power, continued
2.5.2 Wiring From Duplex Receptacle to Service Disconnect
In most cases, the following configurations (see next page) qualify for service entrance
use, however, other codes may apply. Always contact your local utility to verify that
the wiring conforms to applicable codes.
240VAC Service (XM Series 2 915-240 Power Supply) Enclosures used with the XM
Series 2 915-240 are equipped with a 240VAC duplex receptacle to provide power to
the power supply and peripheral equipment. The receptacle, NEMA 6-15R, is protected
by a single, 2-pole, common trip 15 Amp circuit breaker located inside the service
entrance. Wiring is typically 14AWG per NEC code, a grounding clamp, located on the
enclosure, facilitates dedicated grounding.
120VAC 20A Service (XM Series 2 915-120 Power Supply):
Enclosures used with the XM Series 2 915-120 are equipped with a 120VAC duplex
receptacle to provide power to the power supply and peripheral equipment. The recep-
tacle, NEMA 5-20R, is protected by a single, 1-pole, 20 Amp circuit breaker located
inside the service entrance. Wiring is typically 12AWG per NEC code, a grounding
clamp, located on the enclosure, facilitates dedicated grounding.
120VAC 15A Service (XM Series 2 615 Power Supply):
Enclosures used with the XM Series 2 615 are equipped with a 120VAC duplex
receptacle to provide power to the power supply and peripheral equipment. The recep-
tacle, NEMA 5-15R, is protected by a single-pole, 15 Amp High Magnetic circuit
breaker located inside the service entrance. Wiring is typically 14AWG per NEC code,
a grounding clamp, located on the enclosure, facilitates dedicated grounding.
Alpha recommends wiring with 12AWG, in the event that the enclosure will be upgraded to use 90V power
supplies.
to utility
neutral (white)
neutral bus
Copper ground wire
#8 AWG (minimum)
L1 (black)
breaker
grounding point made
to enclosure wall
L1 (black)
120VAC Service Entrance Wiring
to enclosure
receptacle
Typical 240VAC Service Entrance Wiring
to utility
neutral (white)
neutral bus
Grounding point
made to enclosure
wall
L2
L1
breaker
Copper ground wire
#8AWG (minimum)
L2 (red)
L1 (black)
to enclosure
receptacle
Fig. 2-8, Typical Service Entrance Wiring
When required to bond the box to the neutral plate, use the long green bonding screw provided with the box:
Alpha P/N 523-011-10 or Square D P/N 40283-371-50.