Installation MS20/MS30
Release 13 09/2019
13
Conditions for safe use for Industrial Ethernet Rail Switch MS20 and MS30 devices
943-435-999 according to the IECEx Certification Scheme
Page 2/3
WARNING! The USB connection and the V.24
Interface connection are for temporary
connection only, for maintenance use. Do not
use, connect or disconnect unless the area is
known to be non-hazardous. Connection or
disconnection in an explosive atmosphere could
result in an explosion!
Relay
Relay
P1
P2
Power Supply ran
ge “A”
(P1, P2 Redundant)
18
–
32 VDC;
4.0
–
2.25 A; max. 72 W
Temperature Code: T4
Ambient Temperature rating:
Ta: 0°C to +60°C for
“S” types
Ta: -
40°C to +70°C for “T” or “E” types
– refer to the type designation on the device
(Position 10 of nomenclature: “Temperature range”).
Zone 2: Explosive Atmosphere
Ordinary Location,
Non-Hazardous Area,
non-explosive atmosphere
The earth conductor must be at
least the same wire size (mm²
or AWG) as the supply
conductors.
MS20/30 switch basic module
with voltage range type “A”
Relay contacts:
The Fault Relays are tested as Sealed Device
according to IEC 60079-15.
Switching current max. 1 A, (resistive load)
Switching voltage max. 60 VDC or 30 VAC, SELV.
Summary of Contents for Hirschmann MICE MS20
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