Radio Interference; Standards, Approvals And Certificates - Siemens 3RS2 Manual

Safety instructions, standards

2.2 Standards, approvals and certificates

Note
Safe state
The basis of the safety function is the definition of the safe state.
In the case of temperature monitoring relays, this is the "OFF state", i.e. an open contact for
sensors or shutdown of the actuators.
2.1.3

Radio interference

Radio interference
NOTICE
The 3RS2 devices, except digital devices with IO-Link 3RS2800, are certified as devices of
classes A (industrial environment) and B (residential environment).
The digital devices with IO-Link 3RS2800, are certified as class A devices. The use of these
devices can lead to radio interference in residential areas!
2.2 Standards, approvals and certificates
Applicable standards
The temperature monitoring relays meet the requirements of the following standards:
Table 2-1 Standards ‑ monitoring relays
Device standards
EMC standard
Resistance to extreme cli‐
mates
12
• IEC / EN 60947-1 "Low-voltage switchgear and controlgear: General rules"
• IEC / EN 60947-5-1 "Control circuit devices and switching elements: Electromechanical control
circuit devices"; VDE 0660 "Low-voltage switchgear"
• DIN EN 50042 "Terminal marking"
• IEC / EN 61000-6-2 "Generic standard Immunity"
• IEC / EN 61000-6-4 "Generic standard emission"
• IEC 60721-3-3 "Classification of environmental conditions"
The monitoring relays are climate-proof according to IEC 60721-3.
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002