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NV350 Handbook
Option Letter
S
Forward airflow, standard fan
R
Reverse airflow, standard fan
Q
Forward airflow, quiet fan
P
Reverse airflow, quiet fan
V
Forward airflow, temperature controlled fan
C
Customer air, fan not fitted
T
Forward airflow, top fan
U
Customer air, fan not fitted, cover not fitted
K
Custom fan/chassis assembly
L
Fixed speed fan (Non-standards only)
followed by: S or I, where:
Option Letter
S
Screw input terminals
I
IEC input
followed by: S, M, L, R, or T, where:
Option Letter
S
Standard Leakage (Class B Filter)
M
Medium Leakage
L
Low Leakage
R
Reduced Leakage
T
Tiny Leakage
Unit configuration may be given using the above code and/or by the option description. The input terminal type
(screw or IEC) may alternatively be determined by examination of the unit.
optionally followed by: EN#V, EN12V, EN13.5V, IN#V, IN12V, IN13.5V, ES#V, ES12V, ES13.5V, IS#V, IS12V or
IS13.5V. Where:
Option Letter
EN#V
AC good, global module good, PSU enable, 5-5.5V, 2A standby output
EN12V
AC good, global module good, PSU enable, 12V, 1A standby output
EN13.5V
AC good, global module good, PSU enable, 13.5V, 1A standby output
IN#V
AC good, global module good, PSU inhibit, 5-5.5V, 2A standby output
IN12V
AC good, global module good, PSU inhibit, 12V, 1A standby output
IN13.5V
AC good, global module good, PSU inhibit, 13.5V, 1A standby output
ES#V
AC good, PSU enable, 5-5.5V, 2A standby output
ES12V
AC good, PSU enable, 12V, 1A standby output
ES13.5V
AC good, PSU enable, 13.5V, 1A standby output
IS#V
AC good, PSU inhibit, 5-5.5V, 2A standby output
IS12V
AC good, PSU inhibit, 12V, 1A standby output
IS13.5V
AC good, PSU inhibit, 13.5V, 1A standby output
Where: # represents the standby output voltage and is in the range 5 to 5.5.
The Global Options Inhibit and Enable functions permit the customer to turn off or on the main PSUs outputs and the
fan. The standby supply is for use by the customer and provides an SELV output that continues to operate when all
the main PSUs outputs have been turned off using the Inhibit or Enable functions. All the functions of the Global
Option pass through a single 8 way PWB socket and are all rated SELV.
NV350 Modules:
Up to 3 of the following modules types may be fitted:
@B
or
@BH
or
@C
Airflow Option
Input Option
Leakage Option
Global Option
Page 15 of 30
17158 issue 32, February 2020
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