Precision Control Systems 930 - Manual (Page 25)

Model 930 ControlIR TM Instruction Manual Dimensions and Specifications
Research, Inc. Page 21 of 25
Wiring Specifications
Electrical Isolation:
Heat sink to supply and load voltage: 2500 Volts peak.
Command signal to supply and load voltage: 1400 Volts peak.
Slew Rate:
200 ms. Slew rate is the time required for the load voltage to change 63% of the
value represented by the command signal. The current limiting action will affect
the slew rate if the load current is greater than the current rating of the SCRs.
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
Control Wiring 300 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 table 310-16
using 75
°
C copper wire derated 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. thermo-switch Contacts rated for 120 VAC at 100 mA
Remote interlock switch Contacts rated for 120 VAC at 100 mA