Siemens SIRIUS 3RU2 - Main circuit

Technical data
11.3 3RU21 thermal overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
110 Manual, 09/2014, A5E03656507420A/RS-AA/002
11.3.1.2
Main circuit
Technical data for the main circuit, 3RU2116/3RU2126 overload relays
Table 11- 7 Technical data for the main circuit, 3RU2116/3RU2126 overload relays
Type
3RU2116
3RU2126
Size
S00
S0
Width
45 mm
45 mm
Rated insulation voltage U
i
(pollution degree 3)
V 690
Rated impulse withstand voltage U
imp
kV 6
Rated operating voltage U
e
V 690
Type of current
• DC current
Yes
• AC current
Yes, frequency range up to 400 Hz
Current setting
A 0.11 to 0.16 to
11 to 16
1.8 to 2.5 to
34 to 40
Power loss per device
(max.) W 4,1 ... 6,3 5,1 ... 7,5
Short-circuit protection
• With fuse without contactor
See "Selection and ordering data" in Catalog IC 10 - SIRIUS
• With fuse and contactor
See the configuration guide titled "Configuring SIRIUS
Innovations - Selection data for load feeders in fuseless and
fused designs
(http://support.automation.siemens.com/WW/view/en/50250592)".
Protective separation between main and
auxiliary courrent paths
acc. to IEC/EN 60947-1
V 440 440 / 690
2)
2)
690 V operating voltage for protective separation applies to devices with screw or ring
cable lug connection up to the 25 A setting range. 440 V applies in excess of this and in the
case of devices with spring-loaded connection.