Manual ESR5-NO-31-UC
07/2017 MN049014 EN www.eaton.com
25
14 Calculating the power dissipation
Input power dissipation
P
Input
= 2,7 W (at DC)
P
Input
= 2,9 W (at AC)
Contact power dissipation
With the same load currents:
P
Contact
= n • IL² • 200 m
Ω
Bei unterschiedlichen Lastströmen:
P
Contact
= (IL1² + IL2² + ... + ILn²) • 200 m
Ω
Total power dissipation
P
Total
= P
Input
+ P
Contact
therefore
P
Total
= P
Input
+ n • IL² • 200 m
Ω
or
P
Total
= P
Input
+ (IL1² + IL2² + ... + ILn²) • 200 m
Ω
Key:
The total power dissipation of the safety relay is based on the
input power dissipation and the contact power dissipation for the
same and for different load currents.
P
Power dissipation in mW
n
Number of enabling current paths used
IL
Contact load current
Summary of Contents for ESR5-NO-31-UC
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