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産業機器 Siemens 3RB20のPDF リファレンス・マニュアルをオンラインで閲覧またはダウンロードできます。Siemens 3RB20 46 ページ。 Protection equipment, overload relays
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Technical specifications
Type
Size
Width
General data
Trips in the event of
Trip class acc. to IEC 60947-4-1
Phase failure sensitivity
Overload warning
Reset and recovery
• Reset options after tripping
• Recovery time
- For automatic RESET
- For manual RESET
- For remote RESET
Features
• Display of operating state on device
• TEST function
• RESET button
• STOP button
Safe operation of motors with "increased safety" type of protection
EC type test certificate number acc. to
directive 94/9/EC
Ambient temperature
• Storage/transport
• Operation
• Temperature compensation
• Permissible rated current at
- Temperature inside control cabinet 60 °C
- Temperature inside control cabinet 70 °C
Repeat terminals
• Coil repeat terminal
• Auxiliary contact repeat terminal
Degree of protection acc. to IEC 60529
Touch protection acc. to IEC 61140
Shock resistance with sine acc. to IEC 60068-2-27
Electromagnetic compatibility (EMC) – Interference immunity
• Conductor-related interference
- Burst acc. to IEC 61000-4-4
(corresponds to degree of severity 3)
- Surge acc. to IEC 61000-4-5
(corresponds to degree of severity 3)
• Electrostatic discharge acc. to IEC 61000-4-2
(corresponds to degree of severity 3)
• Field-related interference acc. to IEC 61000-4-3
(corresponds to degree of severity 3)
Electromagnetic compatibility (EMC) – Emitted interference
Resistance to extreme climates – Air humidity
Dimensions
Installation altitude above sea level
Mounting position
Type of mounting
Footnotes see page 10.
3RU1 Thermal Overload Relays
3RU11 16
3RU11 26
S00
S0
45 mm
45 mm
Overload and phase failure
CLASS 10
Yes
No
Manual, automatic and remote RESET
min
Depends on the strength of the tripping current and characteristic
min
Depends on the strength of the tripping current and characteristic
min
Depends on the strength of the tripping current and characteristic
Yes, by means of TEST function/switch position indicator slide
Yes
Yes
Yes
DMT 98 ATEX G 001
II (2) GD,
DMT 98 ATEX G 001 N1
°C
-55 ... +80
°C
-20 ... +70
°C
Up to 60
%
100 (over +60 °C current reduction is not required)
%
87
Yes
Not required
Yes
Not required
IP20
Finger-safe
g/ms
8/10
kV
EMC interference immunity is not relevant for thermal overload relays
kV
EMC interference immunity is not relevant for thermal overload relays
kV
EMC interference immunity is not relevant for thermal overload relays
V/m
EMC interference immunity is not relevant for thermal overload relays
EMC interference immunity is not relevant for thermal overload relays
%
100
See dimensional drawings
m
Up to 2000; above this, please enquire
The diagrams show the permissible mounting positions for mounting onto con-
tactors and stand-alone installation. For installation in the hatched area, a setting
correction of 10 % must be implemented.
Stand-alone installation:
0 °
1 3 5 °
1
x 1 , 1
e
Contactor + overload relay:
1 3 5 °
1
3)
Direct mounting
/
Direct mounting/stand-alone installation with terminal
stand-alone
bracket
installation with
4)
terminal bracket
Overload Relays
3RU11 for standard applications
3RU11 36
3RU11 46
S2
S3
55 mm
70 mm
1)
2)
IP20
4 5 °
0 °
4 5 °
1
1
x 1 , 1
x 1 , 1
e
e
9 0 °
9 0 °
1 3 5 °
N S B 0 1 3 6 4
0 °
0 °
2 2 , 5 °
2 2 , 5 °
1 3 5 °
N S B 0 1 3 6 3
x 1 , 1
e
4)
Siemens · 2011
9