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Appendix 3
FM Approval for use in the USA and
cFM Approval for use in Canada
A3.0 Factory Mutual Approval
For installations in the USA and Canada, versions
of the BA304E and BA324E are available with FM
and cFM intrinsic safety and nonincendive
approval, project identifications 3041487 and
3041487C. Copies of the Certificates of
Compliance are available from the BEKA
associates sales office and www.beka.co.uk
The FM and cFM Approved indicators are identical
to the ATEX & IECEx certified versions except the
three M20 x 1,5 tapped cable entries are replaced
by three plain unthreaded 22.25mm diameter
entries. Approved hubs and glands are listed in
note 7 of Intrinsically Safe Control Drawing
CI300-72 and note 5 of Nonincendive Control
Drawing CI300-73. The certification label on the
FM and cFM Approved versions also includes
ATEX and IECEx gas certification information so
that the indicators may also be used in systems
covered by either authority.
A3.1 Intrinsic safety approval
The BA304E and BA324E indicators are approved
to FM Class 3610 intrinsic safety standard for use
in Division 1 and 2 hazardous (classified) locations.
Installations must comply with BEKA associates
Control Drawing CI300-72, 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. Installations in
Canada must comply with the Canadian Electrical
Code C22.2
The BA304E and BA324E have T5 rating at
ambient temperatures up to +70ºC and may be
used with the following gases and dusts:
Intrinsic Safety
Division 1 or 2
Class I Group A & B
Group C
Group D
Class II Group E, F & G
Class III
Zone 0, 1 or 2
Class 1 Group IIC
Group IIB
Group IIA
The FM and cFM entity parameters are similar to
the ATEX and IECEx parameters and the systems
shown in section 4 of this manual may therefore
also be used for FM and cFM installations.
A3.2 Nonincendive approval
The BA304E and BA324E indicators are also
approved to nonincendive standard FM Class 3611
allowing installation in Division 2 hazardous
(classified) locations without the need for Zener
barriers or galvanic isolators. US installations
must comply with the BEKA associates Control
Drawing CI300-73, which is attached to this
Appendix, and with the National Electrical Code
ANSI/NFPA70.
Canadian nonincendive installations must comply
with the Canadian Electrical Code C22.2 and with
BEKA associates Control Drawing CI300-73, which
is attached to this Appendix.
The BA304E and BA324E have a T5 rating at
ambient temperatures up to +70ºC and may be
used with the following gases and dusts:
Nonincendive
Division 2
Class I Group A & B
Group C
Group D
Class II Groups E, F & G
Class III
Zone 2
Class I Group IIC
Group IIB
Group IIA
