Siemens SITRANS P - Page 83

Explosion protection in accordance with
ATEX
HART PROFIBUS PA
Designation II 1D Ex ia IIIC T120 °C Da
Permissible ambient temper‐
ature
-40 ... +80 °C (-40 ... +176 °F) -40 … +75 °C (-40 … +167 °F)
Permissible temperature of
medium
-40 … +100 °C (-40 … +212 °F)
Connection To a certi󹪝ed intrinsically safe circuit
with the max. values:
U
i
= 30 V, I
i
= 101 mA, P
i
= 760 mW
U
i
= 29 V, I
i
= 110 mA, P
i
= 800 mW
FISCO
• ia/ib:
Ui = 17.5 V, Ii = 380 mA, Pi = 5.32 W
• ic:
Ui = 17.5 V, Ii = 570 mA
Linear barrier
• ia/ib:
Ui = 24 V, Ii = 174 mA, Pi = 1.0 W
• ic:
Ui = 32 V, Ii = 132 mA, Pi = 1.0 W
E󹪜ective inner capacitance C
i
= 3.29 nF Ci = 1.1 nF
E󹪜ective inner inductance Li = 0.24 µH Li = 4.8 µH
• Type of protection for Zone 2
A power supply unit of intrinsically safe protection type "Ex ia" in zone 2 is su󹪟cient to connect devices of intrinsically safe
protection type [Ex ic].
Designation II 3G Ex ec IIC T4/T6 Gc
Permissible ambient temper‐
ature "ec"
-40 … +80 °C (-40 … +176 °F) temperature class T4
-40 … +40 °C (-40 … +104 °F) temperature class T6
Permissible temperature of
medium
-40 … +100 °C (-40 … +212 °F) temperature class T4
-40 … +70 °C (-40 … +158 °F) temperature class T6
Connection "ec" To a circuit with the operating values:
U
n
= 10.5 to 30 V, 4 ... 20 mA
To a circuit with the operating values:
U
H
= 10.5 ... 24 V DC
Technical data
8.7 Certi󹪝cates and approvals
SITRANS P320/P420
Compact Operating Instructions, 01/2021, A5E38874562-AC 83