Epilson STSTM

Step 2 Connection of Utility Power Inputs

Connect Input Power from Two Sources

The Epsilon STS™ systems provides for either top or bottom cable entry. Connections are to be made with 75°C copper wire cables and using the lugs supplied with the STS unit. Refer to section 2.0 Installation and/or the system installation drawing(s) for more details (such as cable size and number of conductors).

NOTE: Three phase input power supplied as a Wye must have a separate, solidly grounded neutral that will be connected to the STS neutral busbar. If neutral is not supplied or not required for the load, connect only three phases and ground.

It is recommended to use isolation transformers so that the neutral of both AC sources can be grounded to the same potential.

Step 3 Connection of the Load Outputs

The Epsilon STS™ system provides for either top or bottom cable entry. Connections are to be made with 75°C copper wire cables and using the lugs supplied with the STS unit. Refer to section 2.0 Installation and/or the system installation drawing(s) for more details (such as cable size and number of conductors).

NOTE: Input and output cables inside the STS cabinet must be braced at 12” intervals as shown in Figures QS-3 and QS-4.

For Control Wiring connections refer to section 2.0 Installation.

Figure QS-3200A STS Input/Output Power Connections.

CONTROL WIRES

THREADED THROUGH

PANDUIT/WIRE-WAYS

TOP ENTRY

CONDUIT PLATECONTROL WIRE

PANDUIT/WIRE-WAYS

TB1

TERMINAL

CONTROL

WIRES

COMMUNICATION

CARDS

BRACE AT 12" INTERVALS

BOTTOM ENTRY

CONDUIT PLATE

QS —4

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