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Appendix 1
FM approval for use in USA
A1.0 Factory Mutual Approval
For installations in the USA, the BA338C and
accessories have also been approved intrinsically
safe and nonincendive by FM Approvals, project
identification 3022309. Copies of the Certificate of
Compliance are available from the BEKA
associates sales office and from the BEKA web
site www.beka.co.uk.
A1.1 Intrinsic safey approval
The BA338C is approved to the FM Class 3610
intrinsic safety standard. Installations must comply
with BEKA associates Control Drawing CI330-32,
which is attached to this Appendix, ANSI/ISA
RP12.06.01 ‘Installation of Intrinsically Safe
Systems for Hazardous (Classified) Locations’ and
with the National Electrical Code ANSI/NFPA70.
The BA338C has a T4 rating at ambient
temperatures between –20
o
C and +60
o
C and may
be used with the following gases:
Intrinsic Safety
Division 1 or 2
Class I Group A & B
Group C
Group D
Zone 0, 1 or 2
Class 1 Group IIC
Group IIB
Group IIA
The FM entity parameters are similar to the ATEX
parameters. The intrinsically safe circuits shown in
this manual may therefore be used for installations
in the USA, providing the Zener barriers and
galvanic isolators are FM Approved and comply
with BEKA associates Control Drawing CI330-32.
A1.2 Nonincendive approval
The BA338C is Class 3611 nonincendive approved
by Factory Mutual allowing it to be installed in
Division 2 Classified Areas without the need for
Zener barriers or galvanic isolators. Installations
must comply with the BEKA associates Control
Drawing CI330-34, which is attached to this
Appendix, and with the National Electrical Code
ANSI/NFPA70.
The BA338C has a T4 rating at ambient
temperatures up to +60
o
C and may be used with
the following gases:
Nonincendive
Division 2
Class I Group A & B
Group C
Group D
Zone 2
Class I Group IIC
Group IIB
Group IIA
