APC 150kVA PDU W/ 480 PRI 208/120 SEC K1 XMER Specifications download pdf (Page 26)

Installation Procedures: Connect an Emergency Power Off Switch

18 150 kW InfraStruXure Power Distribution Unit

Connect an EPO switch to the user connection plate and test the switch

1. Connect the switch to the appropriate EPO connection points in the terminal block on the user

connection plate. Read the label next to the terminal block to determine which connection

points apply to your signal type:

– Contact Closure—Normally Open

– Contact Closure—Normally Closed

– 24 VAC/VDC—Normally Open

2. Verify that the EPO DIP switches on the PDU monitoring unit are configured properly for your

signal type. The labels above the switches and the figure below show the correct settings for

both the Normally Open (NO) and Normally Closed (NC) positions.

Note

The default setting on the EPO interface is for a Normally Open (NO) switch.

1 234

ATS EN

ATS 0

AT S 1

ATS 2

EPO

Contact

– +

EPO 24V

AC/DC

Contact Inputs

Contact Outputs

USER INTERFACE

MADE IN USA

External Set of

Normally Open Dry Contacts

1 234

ATS EN

ATS 0

ATS 1

ATS 2

EPO

Contact

– +

EPO 24V

AC/DC

Contact Inputs

Contact Outputs

USER INTERFACE

MADE IN USA

External Set of

Normally Closed Dry Contacts

1 234

ATS EN

ATS 0

AT S 1

ATS 2

EPO

Contact

– +

EPO 24V

AC/DC

Contact Inputs

Contact Outputs

USER INTERFACE

MADE IN USA

External Set of Normally Open Dry Contacts

24 V AC or DC Power Supply

TRIPPED

ARMED

TEST

EPO

Normally ClosedNormally Open

or 24V AC/DC

Location of switches

on PDU monitoring unit

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 55 56

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APC 150kVA PDU W/ 480 PRI 208/120 SEC K1 XMER Specifications Page 26

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