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Installation, Wiring connections – Precision Control Systems ExtrudeIR 4069E User Manual

Page 13

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Model 4069E ExtrudeIR

TM

Instruction Manual

Operating

Instructions

Research, Inc.

Page 9 of 26













WIRING
CONNECTIONS

Installation


This section describes how to wire the Model 4069E power control system. The
features and options mentioned here are identified in the model number found inside
the enclosure.

WARNING!
Hazardous voltages are present at the main disconnect switch and load terminals.

Always remove AC line voltage from the system before making contact with internal
assemblies, line or load wiring, or fuses. Also remove AC line voltage from the system
before making connections, equipment changes, or resistance measurements.



Conduit entry into the system should be made near the right side of the cabinet for
power wiring. Assure that metal fragments are not allowed to fall into the equipment
while holes are made for conduit fittings. See Figure 1.

Wire Ratings:

Wire Temperature Rating:

75

°C or Higher

Line/Load Wiring Voltage Rating (240 VAC systems)

300 VAC Minimum

Line/Load Wiring Voltage Rating (480 VAC systems)

600 VAC Minimum

Allowable Wire Sizes:

Current

Rating of

System

Line

Connections

Load

Connections

Ground

Connection

Control

Circuit

Connections

120 Amp
160 Amp

#6-250 MCM
#6-250 MCM

#6-250 MCM
#6-250 MCM

#4-1/0 AWG
#4-1/0 AWG

22-10 AWG
22-10 AWG


Recommended Minimum Wire Sizes:

NOTE:

Wire temperature and connector ampacity ratings are based on NEC 310-16 using
75

°

C copper wire de-rated for 50

°

C ambient environment.

Current

Rating of

System

Line

Connections

Load

Connections

Ground

Connection

Control

Circuit

Connections

120 Amp
160 Amp

1 AWG

2/0 AWG

6 AWG
4 AWG

6 AWG
6 AWG

16 AWG
16 AWG

Electrical Inputs:

Heater open interlock switch

Contacts Rated for 120 VAC at 2.0 A

Cooling flow interlock switch

Contacts rated for 120 VAC at 100 mA

Heater over-temp. thermoswitch

Contacts rated for 120 VAC at 100 mA

Remote interlock switch

Contacts rated for 120 VAC at 100 mA