SIRIUS 3RT2 contactors/contactor assemblies
2.4 Configuration
SIRIUS Innovations
118 System Manual, 01/2011, A8E56203870002-03
2.4.3 Application environment
2.4.3.1 3RH2 contactor relays
The following information must be taken into account when planning applications involving
3RH2 contactor relays.
Degree of protection and resistance to extreme climates
3RH2 contactor relays are suitable for use in any climate. They are safe to touch according
to DIN EN 50274. The 3RH2 contactor relays have IP20 degree of protection. The drive
system for the 3RH2 contactor relays has IP40 degree of protection.
Shock load and vibratory load
The 3RH2 contactor relays have been tested in terms of their shock resistance to sine
pulses and rectangular pulses for AC and DC operation.
Ambient temperature
The 3RH2 contactor relays are dimensioned for operation at ambient temperatures of
between -25 °C and +60 °C. The devices can be stored at temperatures within the range
from -55 °C to +80 °C.
Reference
More information ... Can be found in the chapter titled ...
About the environments in which contactor relays
are used
General data, rated data (CSA and UL), and data
relating to short-circuit protection for 3RH2.
contactor relays (Page 272)
2.4.3.2 3RT2 power contactors
The following information must be taken into account when planning applications involving
3RT2 power contactors.
Degree of protection and resistance to extreme climates
3RT2 power contactors are suitable for use in any climate. They are safe to touch according
to DIN EN 50274. The 3RT2 contactors have IP20 degree of protection. The drive system for
the 3RT20 contactors has IP40 degree of protection.
Shock load and vibratory load
The 3RT2 contactors have been tested in terms of their shock resistance to sine pulses and
rectangular pulses for AC and DC operation.
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