12-18

Safety Isolation System

ElectroGuard

Typical Wiring Diagram/Wire Length Considerations

Typical Wiring Diagram

Wire Length Considerations

Each Remote Lockout Station is connected to the Control Module

in the Power Panel of the Safety Isolation System. The total length

of the wire used to connect the Remote Lockout Stations to the

Control Module should not exceed the maximum values shown in

the following tables.

Calculate the total wire length as follows:

1. Determine the distance in feet or meters from each Remote

Lockout Station to the Control Module (located inside the Safety

Isolation System Power Panel).

2. Sum the distances for all of the Remote Lockout Stations.

3. Double this value.

4. Compare this doubled value with the maximum values for total

wire length shown in the table below:

Total Wire Length for Remote Lockout Stations

If the application requires a total wire length greater than those

shown in the table, one or more Expansion Modules should be used.

The maximum wire length for the Expansion Modules is shown in

the following table:

For North America

For Outside of North America

Wire Gauge

Max. Total

Wire Length

Wire Gauge

Max. Total

Wire Length

14AWG

4,600 feet

18 Gauge Metric

1,400 meters

16AWG

2,600 feet

14 Gauge Metric

800 meters

18AWG

1,300 feet

Safety Isolation System

with Optional Fusible

Disconnecting Means

L1

Designates

field

connection

points

Remote

Lockout

Station(s)

To Motor

Starters

To

Loads

GC

1IC 2IC

L2

L3

T1

T2

T3

ATTENTION: It is important not to

exceed the maximum wire length values

shown in this section. If the maximum values

are exceeded, this may result in an unreliable

signal to the Safety Isolation System.

Consider using an Expansion Module if wire

lengths greater than those shown for the

Remote Lockout Stations are needed.

Total Wire Length for Expansion Modules

System will require 8 Remote Lockout Stations (RLS):

The wire length from RLS # 1 to the Control Module (in the

ElectroGuard Power Panel) will be 50ft.

The wire length from RLS # 2 to the Control Module will be 200ft.

The wire length from RLS # 3 to the Control Module will be 100ft.

The wire length from RLS # 4 to the Control Module will be 300ft.

The wire length from RLS # 5 to the Control Module will be 500ft.

The wire length from RLS # 6 to the Control Module will be 1000ft.

The wire length from RLS # 7 to the Control Module will be 850ft.

The wire length from RLS # 8 to the Control Module will be 750ft.

14AWG wire will be used to connect the RLS to the Control Module

(see illustration below).

Isolation System is capable of supporting a maximum of six (6) RLS.

Since this installation will require eight (8) RLS, an optional 4 port

Expansion Module will also be used. The Expansion Module will be

wired to the Control Module and will take the place of one of the

original six RLS. We will, therefore, plan to wire five (5) of the RLS

directly to the Control Module and three (3) of the RLS to the

Expansion Module. Since the Expansion Module allows greater wire

lengths than the Control Module, we will plan to wire the RLS to be

installed furthest away from the Power Panel to the Expansion

Module.

For RLS # 1: wire length = 50ft x 2 = 100ft

For RLS # 2: wire length = 200ft x 2 = 400ft

For RLS # 3: wire length = 100ft x 2 = 200ft

For RLS # 4: wire length = 300ft x 2 = 600ft

For RLS # 5: wire length = 500ft x 2 = 1000ft

For North America

For Outside North America

Wire Gauge

Max. Total

Wire Length

Wire Gauge

Max. Total

Wire Length

14AWG

40,000 feet

18 Gauge Metric

12,200 meters

16AWG

23,000 feet

14 Gauge Metric

7,000 meters

18AWG

11,700 feet

152m

(500ft)

304m

(1000ft)

259m

(850ft)

228m

(750ft)

RLS

#5

RLS

#4

RLS

#3

RLS

#7

RLS

#8

RLS

#6

RLS

#1

RLS

#2

91m (300ft)

30m (100ft)

61m (200ft)

15m (50ft)

Expansion

Module

Control

Module

Power Panel