3. Intrinsic Safety Explosion Protection Instrumentation
3-2
TI 32S01J30-01E
3.1
Intrinsic Safety Explosion Protection
Instrumentation Using Barrier base plates
3.1.1
Intrinsic Safety Explosion Protection of ATEX/UKEX
Standard
Base plate for barrier (S2BN5D)
Base plate for barrier (S2BN5D) is complied with I. S. explosion protection standard. P+F’s I. S.
barriers can be connected to the I. S. equipment installed in the hazardous area with explosion-
proof wiring.
Explosion-proof Specifications and Complied Standard
[Explosion-proof specifications]
II 3(1) G Ex ec [ia Ga] IIC T4 Gc
II (1) D [Ex ia Da] III C
I (M1) [Ex ia Ma] I
[Complied standard]
EN IEC 60079-0: 2018
EN 60079-11:2012
EN IEC 60079-7:2015 + A1:2018
Wiring of Intrinsic Safety Explosion Protection
An intrinsic safety circuit must be isolated from non-intrinsic safety circuit. Wiring should be
prepared in accordance with EN 60079-14, or the standard of the country and the area in which it
is set. In regards to the further wiring than the base plate for barrier (S2BN5D), take notice that it
should be an intrinsic safety circuit. The wiring in cabinet should keep the distance to non-intrinsic
safety circuit.
After setting, check the wiring according to the checklist described in EN 60079-17.
Parameter of Intrinsic Safety
Please refer to the P+F’s instruction manual of I.S. barriers installed in the base plate for barrier
(S2BN5D) for the parameter of Intrinsic Safety.
Nov. 10, 2022-00
