Environmental Conditions; Protection Degree; Tests - ABB REF 542plus Technical Reference Manual

1MRS755859
6.7.
6.8.
6.9.
Multifunction Protection and Switchbay Control
Unit
Technical Reference Manual

Environmental conditions

Table 6.7.-1 Environmental conditions
Ambient operation temperature
Ambient transport and storage
temperature
Ambient humidity
Altitude

Protection degree

Base unit
Housing: IP 20
*
HMI
Front: IP 44
*
Rear: IP 20
*
HMI with cover
Front: IP 54
*
Rear: IP 20
*

Tests

Type test
Detailed information on type tests are listed in the document: REF 542plus. Type
test certificate, 1MRS756443.
Protection functions
Protection functions are type tested according to IEC 60255 standard series.
Electromagnetic compatibility
All relevant tests are according to the following standard series:
IEC 60255 for electromagnetic compatibility and product standard
*
EN 61000 for electromagnetic compatibility
*
EN 50263 for measuring relays and protection equipment
*
EN 60694 + IEC 60694AMD 12000 for common specifications for high-voltage
*
switchgear and control gears
Insulation resistance
Greater than >100 MΩ at 500 V DC.
-10 + 55 °C
-25 +70 °C
Up to 95% without condensation
< 1.000m a.s.l
REF 542plus REF 542plus
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