3. Intrinsic Safety Explosion Protection Instrumentation
3-5
TI 32S01J30-01E
3.1.4
Intrinsic Safety Explosion Protection of Canada (FM)
Standard
S2BN5D base plate for barrier
S2BN5D base plate for barrier can be connected to the I.S. equipment installed in the hazardous
area with explosion-proof wiring and can be installed in Division 2 by mounting in a keyed metal
cabinet approved by approval authorities.
Please refer to the instruction manual of P+F I.S. barriers for installation of I.S. barriers.
Explosion-proof Specifications and Complied Standard
[Explosion-proof specifications]
Intrinsically Safe Associated Apparatus for Class I, II, III Division I Groups A, B, C, D, E, F
and G
Intrinsically Safe Associated Apparatus Class I Zone 0, Group IIC
Intrinsically Safe Associated Apparatus Zone 20, Group IIIC
[Complied standard]
CAN/CSA-C22.2 No. 60079-0:11
CAN/CSA-C22.2 No. 60079-11:14
Wiring of Intrinsic Safety Explosion Protection
An intrinsic safety circuit must be isolated from non-intrinsic safety circuit. Installation and wiring
of Intrinsic Safety Explosion Protection shall be carried out in according with “Appendix 1.4 US
(FM) NI/Canada (FM) NI Control Drawing of S2BN5D”.
Parameter of Intrinsic Safety
Please refer to the P+F’s instruction manual of I.S. barriers installed in S2BN5D for the parameter
of Intrinsic Safety.
Dec. 3, 2021-00
