Siemens SIRIUS 3RU2 - Performance features

Technical data
11.2 Performance features
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
104 Manual, 09/2014, A5E03656507420A/RS-AA/002
11.2
Performance features
11.2.1
General data
Table 11- 1 General data for 3RU21 and 3RB30/3RB31 overload relays
Feature
Description
3RU21
3RB30/3RB31
Sizes
• Are matched to the dimensions,
connections and technical features of the
other devices in the SIRIUS modular
system (contactors, etc.)
• Permit the mounting of slim-line and
compact load feeders in widths of 45 mm
(S00), 45 mm (S0) and 55 mm (S2)
• Make configuration easier
S00 / S0 / S2 S00 / S0 / S2
Overlapping current range
• Allows straightforward and consistent
configuration with one series of overload
relays (for small to large loads)
0.11 to 80 A 0.1 to 80 A