Main Circuit - Siemens SIRIUS 3RT Series System Manual

SIRIUS 3RU2/3RB3 overload relays
5.10 Technical data
Type
Size
Width
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) - Immunity
Conducted interference suppression

- Burst acc. to IEC 61000-4-4
(corresponds to severity 3)
- Surge acc. to IEC 61000-4-5
(corresponds to severity 3)
Electrostatic discharge acc. to

IEC 61000-4-2
(corresponds to severity 3)
Field-related interference suppression to

IEC 61000-4-3
(corresponds to severity 3)
Electromagnetic compatibility (EMC)
- Emitted interference
Resistance to extreme climates - Humidity
Dimensions
Installation altitude above sea level
Mounting position
Type of fixing
Remote RESET in conjunction with the appropriate accessory
1)
For screw and snap-on mounting onto DIN rail TH 35
2)
5.10.2.2

Main circuit

Table 5- 39 Technical data for the main circuit, 3RU21 overload relays
Type
Size
Width
Rated insulation voltage U
(pollution degree 3)
Rated impulse withstand voltage U
Rated operational voltage U
Type of current
DC current

AC current

540
g/ms
kV
kV
kV
V/m
%
m
V
i
kV
imp
V
e
3RU21 16
S00
45 mm
IP20
Screw connection and spring-loaded terminals: finger-safe
Ring cable lug connection: finger-safe only with optional
terminal covers
8 / 10
EMC immunity is not relevant in the case of thermal overload
relays
EMC immunity is not relevant in the case of thermal overload
relays
EMC immunity is not relevant in the case of thermal overload
relays
EMC immunity is not relevant in the case of thermal overload
relays
EMC immunity is not relevant in the case of thermal overload
relays
90
See Dimension drawings (dimensions in mm) (Page 552)
Up to 2,000; above this, please contact us
See Minimum clearances and mounting position (Page 508)
Direct mounting/stand-alone assembly with terminal support
3RU21 16
S00
45 mm
690
6
690
Yes
Yes, frequency range up to 400 Hz
System Manual, 01/2011, A8E56203870002-03
3RU21 26
S0
45 mm
3RU21 26
S0
45 mm
SIRIUS Innovations
2)