Power Connections; Grounding Instructions; Three Phase Installation - Delta 31-552 Instruction Manual

IMPORTANT: Make sure the electrical characteristics are the same between the motor nameplate and the power
source and make sure the power circuit the machine will be used on is properly fused and that wire size is correct.
IN ALL CASES, MAKE SURE THE RECEPTACLE IN QUESTION IS PROPERLY GROUNDED.
WARNING: DO NOT EXPOSE THE MACHINE TO RAIN OR OPERATE THE MACHINE IN DAMP LOCATIONS.
WARNING: THIS MACHINE MUST BE GROUNDED WHILE IN USE TO PROTECT THE OPERATOR FROM
ELECTRIC SHOCK.
SINGLE PHASE
INSTALLATION
If the motor on your machine is wired for 115 voIt, single
phase, the power cord is equipped with a plug that has
two flat, parallel current-carrying prongs and one longer
round or "U"-shaped, ground prong Which requires a
mating 3-conductor grounded type receptacle, as shown
in Fig. A.
If the motor on your machine is wired for 230 Volt, single
phase, the power cord is equipped with a plug that has
two flat, current-carrying prongs in tandem, and one
round or "U" shaped longer ground prong. This is used
only with the proper mating 3-conductor grounding type
receptacle, as shown in Fig. B.
When the three-prong plug on your machine is plugged
into a grounded 3-conductor receptacle, the long ground
prong on the plug contacts first so the machine is
properly grounded before electricity reaches it.
GROUNDED OUTLET BOX
CURRENT
CARRYING
PRONGS
115
VOLT
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES

POWER CONNECTIONS

GROUNDING INSTRUCTIONS

Fig. A
THREE PHASE
INSTALLATION
If the motor on your machine is wired for 200V, 230V, or
460V, three phase, the necessary wiring from the starter to
the power should be completed by a qualified electrician.
Permanently connected machines:
This machine should be connected to a grounded metal
permanent wiring system; or to a system having a
equipment-grounding conductor. These connections
should be made by a qualified electrician.
WARNING: IN ALL CASES, MAKE CERTAIN THE
RECEPTACLE IN QUESTION IS PROPERLY
G R O U N D E D . I F Y O U A R E N O T S U R E H AV E A
QUALIFIED ELECTRICIAN CHECK THE RECEPTACLE.
GROUNDED OUTLET BOX
CARRYING
230
VOLT
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES
4
CURRENT
PRONGS
Fig. B