Delta 31-552 Power Connections, Grounding Instructions, Single Phase Installation

POWER CONNECTIONS

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.

GROUNDING INSTRUCTIONS

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.

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 GROUNDED. IF YOU ARE NOT SURE HAVE A QUALIFIED ELECTRICIAN CHECK THE RECEPTACLE.

GROUNDED OUTLET BOX

CURRENT

CARRYING

PRONGS

115 VOLT

GROUNDING BLADE

IS LONGEST OF THE 3 BLADES

GROUNDED OUTLET BOX

CURRENT

CARRYING

PRONGS

230 VOLT

GROUNDING BLADE

IS LONGEST OF THE 3 BLADES

Fig. A Fig. B

4