Siemens SIRIUS 3RU - General Data and Overview Tables

Technical data
11.2 Overview tables
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
148 Manual, 09/2016, A5E03656507420A/RS-AB/003
11.2
Overview tables
Overview tables technical data
You will find overview tables with technical data in the "Product information" tab in our online
ordering system
(https://mall.industry.siemens.com/mall/en/ww/Catalog/Products/8210541?tree=CatalogTree).
11.3
Performance features
11.3.1
General data
Table 11- 1 General data for 3RU21, 3RB20 / 3RB21 and 3RB30 / 3RB31 overload relays
Feature
Description
3RU21
3RB30/3RB31
3RB20 / 3RB21
Sizes
• Are matched to the dimensions,
connections and technical features
of the other devices in the SIRIUS
modular system
• Permit the mounting of slim-line
and compact load feeders in widths
of 45 mm (S00), 45 mm (S0),
55 mm (S2), 70 mm (S3), 120 mm
(S6) and 145 mm (S10 / S12)
• Make configuration easier
S00 / S0 / S2 / S3 S00 / S0 / S2 / S3 S6
S10 / S12
Overlapping
current range
• Allows straightforward and
consistent configuration with one
series of overload relays (for small
to large loads)
0.11 ... 100 A 0.1 ... 115 A 50 ... 630 A