Self-powered feeder protection
9 ABB
Table 12. Environmental conditions
Operating temperature range
Short-time service temperature range
-40...+85ºC (<16 h)
Display viewable range : above -20 ºC up to
+70 ºC
Transport and storage temperature range
Table 13. Environmental tests
Dry heat test (humidity < 50% )
Working
Storing
96 h at +70°C
96 h at +85°C
Dry cold test
Working
Storing
96 h at -25°C
96 h at -40°C
2 cycles (12 h + 12 h) at
+25°C…+55°C,
Rh > 93%
Change of temperature test
Cyclic : 3 hours at -25°C + 3
hours at +55°C ,
Number of cycles : 5
Table 14. Electromagnetic compatibility tests
1 MHz/100 kHz burst disturbance test:
Common mode
Differential mode
2.5 kV, 400/40 pulses/s
1.0 kV, 400/40 pulses/s
IEC 61000-4-18, class III
IEC 60255-26
Electrostatic discharge test:
Contact discharge
Air discharge
4 kV, 150 pF/330 Ω
6 kV, 150 pF/330 Ω
Conducted radio frequency interference
tests:
10 V
f=150 KHz...80 Mhz
10 V
f=27, 68 MHz
Not applicable for low energy trip
output
IEC 60255-26
IEC 61000-4-6