Derating Data; Derating Data For Booksize Format; Derating Data For Chassis Format; General - Siemens SINAMICS S120 Device Manual

System overview

2.11 Derating data

2.11 Derating data
2.11.1

Derating data for booksize format

SINAMICS S120 Cabinet Modules NEMA with power units, booksize format, and the
associated system components are dimensioned for an ambient temperature of 104 °F
(40 °C) and installation altitudes up to 3,300 ft (1,000 m) above sea level. If SINAMICS S120
Cabinet Modules with power units in booksize format are operated at ambient temperatures
above 104 °F (40 °C) and/or installation altitudes higher than 3,300 ft (1,000 m) above sea
level, the corresponding derating factors must be taken into account as a function of the
ambient temperature and/or the installation altitude. These derating factors differ from the
derating factors for chassis format power units and are specified in Catalog PM21 /
SINAMICS S120 Drive System. They are valid for SINAMICS S120 Cabinet Modules with
booksize format power units in degrees of protection IP20, IP21, IP23 (NEMA1 filtered), IP43
and IP54 (NEMA12 ventilated).
2.11.2

Derating data for chassis format

2.11.2.1

General

SINAMICS S120 Cabinet Modules NEMA as well as the associated system components are
dimensioned for an ambient temperature of 104 °F (40 °C) and installation altitudes up to
6,600 ft (2,000 m) above sea level.
S120 Cabinet Modules NEMA include Basic Line Modules, Smart Line Modules, Active Line
Modules and Motor Modules with power units, chassis format including the associated
system components, (e.g. line filter, chassis Braking Modules and motor filter), as well as
Line Connection Modules and Auxiliary Power Supply Modules.
Exceptions are the S120 Cabinet Modules with Booksize format power units. This derating
data can be taken from Chapter "Cabinet Modules" in subsection "Derating data" of the
particular S120 Cabinet Modules.
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Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A