Communication solutions for power utilities
1U SHELF TYPE MAS-2
WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
11/39
Damped oscillatory waves
IEC 870-2-1 level 2.
1 kV
p
Protection against overvoltages
Electronic PTC
Protection against polarity inversion
Permanent. By series diode
Maximum consumption
9 W
1.2.6
Environmental conditions
Operating
Temperature and humidity
In accordance with IEC 721-3-3 class 3K5.
5
C to +50
C
<95% non condensing
Mechanical
IEC 721-3-3 class 3M1
Storage
Maximum temperature
In accordance with IEC 721-3-1 class 1K5.
20
C to +70
C
Mechanical
IEC 721-3-1 class 1M1
Transportation
Maximum temperature
In accordance with IEC 721-3-2 class 1K5.
20
C to +70
C
Mechanical
IEC 721-3-2 class 2M1
1.2.7
Other characteristics
Alarm relay
Changeover maximum current
3 A
Changeover maximum voltage
250 V
AC
, 150 V
DC
Changeover maximum power
See Figure 1