Specifications

SINAMICS G150
Drive converter cabinet units
75 kW to 1500 kW
3/11
Siemens D 11 · 2008
3
T ech nical s pecifications (continued)
Degrees of protection of cabinet units
Standard EN 60529 applies to the protection of electrical eq uip-
ment by means of housings, covers or eq uivalent, and includes:
• Protection of persons against accidental contact with live or
moving parts within the housing and protection of the eq uip-
ment against the ingress of solid foreign bodies (touch protec-
tion and protection against ingress of foreign bodies)
• Protection of the eq uipment against the ingress of water (wa-
ter protection)
• Abbreviations for the internationally agreed degrees of protec-
tion.
T he degrees of protection are specified by abbreviations com-
prising the code letters IP and two digits.
O verload capacity
SINAMIC S G150 drive converter cabinet units are eq uipped with
an overload reserve to deal with breakaway torq ues, for ex am-
ple. If larger surge loads occur, this must be taken into account
when configuring. In drives with overload req uirements, the ap-
propriate base load current must therefore be used as a basis
for the req uired load.
T he criterion for overload is that the drive is operated with its
base load current before and after the overload occurs, and a
load duration of 300 s is assumed here.
T he base load current
I
L
for a low overload is based on a load
cycle of 110 % for 60 s or 150 % for 10 s.
T he base load current
I
H
for a high overload is based on a load
cycle of 150 % for 60 s or 160 % for 10 s.
Low overload
High overload
D eg r ees of
protection of th e
driv e conv er ter
cab inet u nit
F irs t dig it
(tou ch pr otection and
protection ag ains t
ing r es s of s olid
ob jects )
S econd dig it
(protection of th e
eq u ipm ent ag ains t th e
ing r es s of w ater)
IP20 (standard) Protected against solid
objects, diameter
% 12.5 mm.
No water protection
IP21 (option M21) Protected against solid
objects, diameter
% 12.5 mm.
Protected against verti-
cally falling water drops
V ertically falling water
drops shall not have a
harmful effect.
IP23 (option M23) Protected against solid
objects, diameter
% 12.5 mm.
Protected against
spraying water
Water sprayed on both
sides of the vertical at
an angle of up to 60°
shall not have a harmful
effect.
IP43 (option M43) Protected against solid
objects, diameter
% 1 mm.
Protected against
spraying water
Water sprayed on both
sides of the vertical at
an angle of up to 60°
shall not have a harmful
effect.
IP54 (option M54) Dust protected.
Ingress of dust is not
totally prevented, but
dust must not be
allowed to enter in such
q uantities that the func-
tioning or safety of the
eq uipment is impaired.
Protected against
splashing water
Water splashing onto
the enclosure from any
direction shall not have
a harmful effect.
60 s
10 s
300 s
t
1.1 x I
L
1.5 x I
L
Short-time current 110 %
Short-time current 150 %
Rated current (continuous)
Converter current
G_D213_EN_00035
Base load current I
L
for low overload
I
L
I
rated
60 s
10 s
t
1.5 x I
H
1.6 x I
H
Short-time current 160 %
Short-time current 150 %
Rated current (continuous)
Converter current
G_D213_EN_00036
Base load current I
H
for high overload
I
H
I
rated
300 s
© Siemens AG 2008