Siemens SITRANS P Compact Operating Instructions page 85

Explosion protection in accordance with FM (USA)
Special conditions for use
• For type of protection "db": When you use the device as partition wall device in zones that require EPL Ga, isolate the non-
intrinsically safe circuit safely from ground, e.g.: through a SELV circuit.
• For type of protection "ec": Isolate the non-intrinsically safe circuit safely from ground, e.g.: through a SELV circuit that
ensures transient protection up to 140% of the nominal voltage.
• Mount the device so that the enclosure is not exposed to any intense electrostatic charging processes.
• To prevent electrostatic charging in hazardous areas, clean the outside of the enclosure using a cloth moistened with water.
Explosion protection in accordance with cCSAus (Canada/USA)
CSA18CA70163103X
Marking (XP/DIP) or (IS); (NI)
Further certificates for explosion protection
Explosion protection in accordance with NEPSI (China)
GYJ19.1058X
Explosion protection in accordance with INMETRO (Bra‐
sil)
BRA-18-GE-0035X
Explosion protection in accordance with EAC (Russia)
TC RU C-DE.AA87.B.01202
Explosion protection in accordance with IECEx
IECEx BVS 18.0038X
SITRANS P320/P420
Compact Operating Instructions, 01/2021, A5E38874562-AC
The permissible operating values can be found in the certificate.
According to CSA Ex ia/db IIC T4/T6 Ga/Gb
Standards
Ex ia IIC T4/T6 Ga
Ex ia IIIC T120°C Da
Ex tb IIIC T120°C Db
Ex ec IIC T4/T6 Gc
Class I, DIV 1, Gr. A-D (Explosion Proof)
Intrinsically Safe (IS) for Class I, DIV 1, Gr. A-D
(Intrinsically Safe (IS))
Class II, DIV 2, Gr. E-G; Class III
Class I, DIV 2, Gr. A-D (NI)
According to US Class I, Zone 0/1, AEx ia/db IIC T4/T6 Ga/Gb
Standards
Class I, Zone 0, AEx ia IIC T4/T6 Ga
Zone 20, AEx ia IIIC T120°C Da
Zone 21, A/Ex tb IIIC T120°C Db
Class I, Zone 2, AEx ec IIC T4/T6 Gc
Class I, DIV 1 Gr. A-D (Explosion proof (XP))
Class I, DIV 1 Gr. A-D (Intrinsically Safe (IS))
Class II, DIV 2, Gr. E-G; Class III
Class I, DIV 2, Gr. A-D (NI)
The permissible operating values and markings can be found in the
certificate.
Technical data
8.7 Certificates and approvals
85