Symcom ISS-105-ISO-3, ISS-105-ISO-4, ISS-105-ISO Installation Guide

INSTALLATION
INSTRUCTIONS

Rapid City, SD, USA, 05/2009

MODEL ISS-105-ISO-3
MODEL ISS-105-ISO-4
MODEL ISS-105-ISO

Revision B1

II_ISS-105-ISO-B1

2880 North Plaza Drive, Rapid City, South Dakota 57702

[phone] · [phone] · fax [phone]

TO PREVENT IGNITION OF FLAMMABLE OR COMBUSTIBLE ATMOSPHERES,

DISCONNECT POWER FROM SYSTEM PRIOR TO INSTALLATION OR SERVICE!

READ THESE INSTRUCTIONS ENTIRELY BEFORE INSTALLATION.

CAUTION: Only personnel trained in intrinsically safe systems should install this

equipment. Improper installation may result in serious injury or damage. Before
proceeding with installation, read and understand these instructions completely. The
ISS-105-ISO Isolated Switch is UL913 listed as an associated apparatus for
interfacing between hazardous and non-hazardous areas. The ISS-105-ISO must be
installed in a non-hazardous area. Follow SymCom's Control Drawing ISS-105 on the
last page of this bulletin for proper installation. All wiring connected to a hazardous
location must be separated from all non-intrinsically safe wiring. Description of special
wiring methods can be found in the National Electrical Code ANSI/NFPA 70, Article
504 Intrinsically Safe Systems. Check your state and local codes for additional
requirements.

INSTALLATION:

1. Mount the ISS-105-ISO in a non-hazardous location on a DIN-rail, or by installing two
#6-#8 screws into the mounting holes shown in Figure 1.

2. Connect wiring per SymCom's Control Drawing ISS-105. Follow all hazardous code
requirements when installing wiring to the input terminals.

Figure 1: Mounting Diagram
OPERATION:

The ISS-105-ISO relays are 120VAC powered isolated switches suitable for transferring
switch states from hazardous locations to non-hazardous locations. Each input controls
the corresponding output. The green LEDs illuminate when the corresponding input is
closed. The red LEDs illuminate when the corresponding relay is energized.

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