Control Drawing for RSPE devices according to Class 1 Division 2 Hazardous Locations
Rev.: 1 Document No.: 000182303DNR Page 2/2
Ordinary Location,
Non-Hazardous Area,
Non-Explosive Atmosphere
Explosive
Atmosphere
Class I 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 bis +60 °C for “S” temperature types
Ta: í40 °C bis +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 inter-
connection 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 mainte-
nance 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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