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2. CENTUM and Explosion Protection Instrumentation
2-10
TI 33Q01J30-01E
Overview of Connecting A2BN4D barrier base plate for FM and CSA
I.S. barriers of MTL products which can be mounted to the base plate (A2BN4D), comply with I.S.
explosion protection standard. For connecting to the devices installed in Division 1 or Division 2,
it is necessary to compare intrinsic safety parameters between the devices installed and A2BN4D
to evaluate whether connection is possible or not.
Division2
Non-Hazardous Area
Division1
F020319E.ai
BARRIER
PWR
BUS 1
BUS 2
BUS 2
SYS
PWR
FS1
FS1
A2BN4D-200C0 S1
+ _
_+
2.5A-T
TM1
TM2
1
2
3
4
1113
6
7
8
5
11
12
10
9
15
16
14
13
IO2
IO1
UNIT
NODE
I.S. Barriers of MTL products
Intrinsic safety
device
Base plate for barrier
A2BN4D
NI equipment
Intrinsic safety
device
Figure Connection of A2BN4D for FM and CSA (1)
Division2
Non-Hazardous Area
Division1
F020320E.ai
BARRIER
PWR
BUS 1
BUS 2
BUS
2
SYS
PWR
FS1
FS1
A2BN4D-200C0 S1
+ _
_+
2.5A-T
TM1
TM2
1
2
3
4
1113
6
7
8
5
11
12
10
9
15
16
14
13
IO2
IO1
UNIT
NODE
I.S. Barriers of MTL products
Intrinsic safety
device
Base plate for barrier
A2BN4D
NI equipment
Intrinsic safety
device
Figure Connection of A2BN4D for FM and CSA (2)
Dec .3, 2021-00