Siemens 7SR105 Rho User Manual page 83

1.3 Environmental Performance
This section describes about the environmental tests performed with 7SR105 Rho Motor Protection Relay under
different conditions.
Table 1-13
Type Test
Vibration
Shock and Bump
Degree of Protection
Seismic
Contact
Electrical Endurance
Test
Table 1-14
Type Test
Insulation Resistance
Impulse Voltage
Withstand
Hi Voltage (Dielectric)
Voltage
© 2018 Siemens Protection Devices
Mechanical Tests
Reference
IEC 60255-21-1
IEC 60255-21-2
IEC 60529
IEC 60255-21-3,
Class I
IEC 60255-1
(Ref: Std IEC 61810-1)
IEC 60255-1
(Ref: Std IEC 61810-1)
Electrical Tests
Reference
#
IEC 60255-27
#
IEC 60255-27
#
IEC 60255-27
Requirement
Response, Class I
Endurance, Class I
Shock response, Class I
Shock withstand, Class I
Bump, Class I
IP54 front
IP20 back
In single axis sine sweep in X-axis
Sweep (@a sweep rate of 1 octave/min) vibration
in the frequency range
(1 Hz to 35 Hz) at amplitude of 3.5 mm or 1.0 gn
(whichever is less)
In single axis sine sweep in Y-axis: sweep (@a
sweep rate of 1 octave/min) vibration in the
frequency range (1 Hz to 35 Hz) at amplitude of
1.5 mm or 0.5 gn (whichever is less)
Making capacity, Make and carry capacity,
Breaking capacity
10000 operations at 250 V, 5 A
Requirement
Insulation resistance >100 M Ohms at 500 V DC
Test Duration: > 5 s
5 kV, 1.2/50 µs, 0.5 J
5 +ve, -ve pulses
Between all terminals and case earth and any
two independent circuits.
• All case terminals connected together 2.0 kV
AC RMS, 50 Hz, 1 min between terminals of
independent circuits
• 1.0 kV AC RMS, 1 min across normally open
contacts
7SR105 Rho Performance Specification
Chapter 3 Page 7 of 17