Control Drawing for RSPE devices according to Class , Division 2 Hazardous Locations
Rev.: 1 Document No.: 000182303DNR Page 2/2
Ordinary Location,
Non-Hazardous Area,
Non-Explosive Atmosphere
Explosive Atmosphere
Class , Division 2
Groups A, B, C, D
Hazardous Location
RSPE - Industrial Ethernet
Rail Switch Power Enhanced
Relay
USB
P1
P2
The earth conductor must
be at least of the same
wire size (mm² or
AWG)
as the supply conductors.
Temperature Code: T4
Ambient Temperature rating:
Ta: 0 °C to +60 °C for “S” temperature types
Ta: í40 °C to +70 °C for “T” or “E” temperature types
(Refer to the temperature code of the type designation on the
device.)
Power Supply connectors
*) Notes:
The nonincendive eld wiring circuit concept allows interconnection
of nonincendive eld wiring apparatus and associated nonincendive
eld wiring apparatus using any of the wiring methods permitted for
unclassi ed locations when certain parametric conditions are met.
Capacity: C
a
C
i
+ C
Cable
; Inductivity: L
a
L
i
+ L
Cable
WARNING!
The USB is 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.
The maximum cable length has to be determined as follows:
(a) max. Cable Length < (L
a
í L
i
) / Cable
L
(”Cable
L
” denotes the inductance per unit length of used cable)
and
(b) max. Cable Length < (C
a
í C
i
) / Cable
C
(“Cable
C
” denotes the capacitance per unit length of used cable)
The lower value of (a) and (b) is to apply.
Relay contacts:
Equipment with nonincendive eld wiring parameters.
Polarity is not relevant.
The relay terminals are dependent upon the following
Entity parameters:
U
i
I
i
C
i
L
i
30 V 90 mA 2 nF 1 H
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