7SR45 Performance Specification
© 2017 Siemens Protection Devices Limited Chapter 3 Page 6 of 10
Type Test Reference Requirement
In single axis sine sweep in Y-axis: sweep
(@a sweep rate of 1 octave/min) vibration in the
frequency range (1 Hz - 35 Hz) at amplitude of
1.5 mm or 0.5 gn (whichever is less)
Contact IEC 60255-1
(Ref: Std IEC 61810-1)
Making capacity, Make and carry capacity,
Breaking capacity
Electrical Endurance
Test
IEC 60255-1
(Ref: Std IEC 61810-1)
10000 operations at 250 V, 5 A
Table 1-12 Electrical Tests
Type Test Reference Requirement
Insulation Resistance IEC 60255-27
Insulation resistance >100 M Ohms at
500 V DC
Test Duration: > 5 s
Impulse Voltage
Withstand
IEC 60255-27
5 kV, 1.2/50 µs, 0.5 J
5 +ve, -ve pulses
(Between all terminals and case earth and any
two independent circuits)*
High Voltage
(Dielectric) Voltage
IEC 60255-27
All case terminals connected together
2.0 kV AC RMS, 50 Hz, 1 min
(Between any terminal and earth,
independent circuits)*
• 1.0 kV AC RMS, 1 min across normally
open contacts
High Frequency
Disturbance
IEC 60255-26 • Common-mode test voltage: 2.5 kV
• Differential test voltage: 1.0 kV
• Test duration: 2 s
• Source impedance: 200 Ω
Electrostatic Discharge IEC 60255-26 • 8 kV air discharge
• 6 kV contact discharge
Electrical Fast
Transient or Burst
IEC 60255-26, Zone B Test severity Amplitude:
2 kV, 5 kHz
Surge Immunity IEC 60255-26, Zone B Time to half-value: 1.2/50
s
• Amplitude: 4 kV between all groups and
case earth (CM)
• Amplitude: 2 kV between terminals of each
group (DM)
Radiated Immunity IEC 60255-26
Test field strength, frequency band
80 MHz to 1.0 GHz and 1.4 GHz to 2.7 GHz:
10 V/m, Test using AM: 1 kHz/80 %
Conducted Radio
IEC 60255-26 150 kHz to 80 MHz 10 V
Power Frequency
Magnetic Field
IEC 60255-26 30 A/m applied continuously,
300 A/m applied for 3 s
Radiated Emissions IEC 60255-26
CISPR 11, Class A
30 MHz - 230 MHz, 40 dB µ V/m at
10 m measurement distance
230 MHz - 1 GHz, 47 dB µ V/m at 10 m
measurement distance
To Next Page
Loading...
Need help?
General