Siemens S7-300 Installation And Operating Manual page 61

Summary of UL and FM approvals
The table below provides an overview of the fail-safe signal modules, including detailed
information on their approvals and fields of application.
SM 326; DI 24 x DC 24V
SM 326; DI 8 x NAMUR
SM 326; DO 8 x DC 24V/2A
SM 326; F-DO 10 x DC
SM 336; F-AI 6 x 0/4 ... 20
C-Tick-Mark for Australia
The fail-safe signal modules meet requirements to AS/NZS CISPR11 (Class A).
IEC 61131
The fail-safe signal modules meet requirements and criteria to IEC 61131-2 Standard
(Programmable Logic Controllers, Part 2: Equipment Requirements and Tests).
Fields of application
SIMATIC products are designed for operation in industrial environments.
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
Component
PM
SM 326; DO 10 x DC
24V/2A
24V/2A PP
SM 336; AI 6 x 13 Bit
mA HART
Fields of application
Industry
UL 508 FM 3611, 3600,
3810 CI. I Div. 2
CSA C 22.2 No.
142 CI. I Zone 2
UL 1604
CSA–213
Available Available
Available Available
Available Available
Available Available
Available Available
Available Available
Available Available
Radiated interference
EN 61000-6-4:2007
General technical data
7.2 Standards and Approvals
Certified to:
ATEX 2671 X
Guideline
94/9/EC
No
II (2) G [Ex ib]
IIC
available
No
No
No
No
No
Requirements in terms of
Immunity to interference
EN 61000-6-2:2005
ATEX
EN 60079-15
II 3 G Ex nA II
T3..T6
available
II 3 (2)
G Ex nA [ib]
IIC T4
available
Available
II 3 G Ex nA II
T3..T6
available
II 3 G Ex nA II
T3..T6
available
II 3 G Ex nA II
T3..T6
available
II 3 G Ex nA II
T4
available
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