Sirius 3Ru2/3Rb3 Overload Relays; Standards - Siemens SIRIUS 3RT Series System Manual

SIRIUS 3RU2/3RB3 overload relays

5.1

Standards

5.1.1 Standards
Applicable standards
3RU21 thermal overload relays and 3RB30/3RB31 solid-state overload relays meet the
requirements of the following standards:
Table 5- 1
Device standards
EMC standard
Resistance to
extreme climates
Touch protection
Reference
Other standards that 3RU21 and 3RB30/3RB31 overload relays conform to are listed in the
chapter titled Technical data (Page 536). SIRIUS components have been approved by a
whole range of bodies for various sectors (shipbuilding, etc.). An up-to-date list of approvals
appears in Chapter 20 of the Siemens Low Voltage LV1 Catalog, and more information, as
well as an option to download certificates, can be obtained on the Internet
(http://www.siemens.com/automation/service&support).
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
Standards
IEC/EN 60947-1

IEC/EN 60947-4-1

IEC/EN 60947-5-1

IEC 61000-4; UL 508/CSA C 22.2

3RB30/3RB31 solid-state overload relays also meet the requirements of EMC
standards. These standards are not relevant in the case of the 3RU21 thermal
overload relay.
The overload relays are climate-proof according to IEC 60721-3.
Overload relays are safe to touch according to DIN VDE 0106 Part 100.
Terminal covers may have to be fitted onto the connecting bars, depending on
the assignment to other devices.
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