2 Safety Barriers
2 Safety Barriers
2 Safety Barriers
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2<br />
Dual-Channel <strong>Safety</strong> <strong>Barriers</strong> Polarity: + / +<br />
Series 9002/11<br />
Dual-Channel <strong>Safety</strong> <strong>Barriers</strong> Polarity: + / +<br />
Safe area<br />
+ve<br />
Control room<br />
equipment<br />
0V<br />
+ve<br />
U N<br />
R L<br />
Hazardous area<br />
+ve<br />
Intrinsically safe<br />
field device(s)<br />
+ve<br />
• Application specific for the connection of<br />
3-wire NPN, voltage output sensors<br />
• Low operational current<br />
• Approved for installation in Division 2<br />
and Zone 2<br />
/PA<br />
05823E01<br />
Selection Table<br />
Channel U N R min R max I max <strong>Safety</strong> Data Order number<br />
U o I o P o IIC IIB<br />
1<br />
2<br />
1+2<br />
L o C o L o C o<br />
V O O mA V mA mW mH mF mH mF<br />
24<br />
24<br />
- -<br />
264<br />
11979<br />
- -<br />
296<br />
12221<br />
- -<br />
8<br />
23<br />
- -<br />
28<br />
28<br />
28<br />
109<br />
3<br />
112<br />
760<br />
20<br />
780<br />
1.3<br />
1.3<br />
0.76<br />
0.083<br />
0.083<br />
0.065<br />
9<br />
150<br />
84<br />
0.65<br />
0.65<br />
0.551<br />
9002/11-280-112-001<br />
Functional and Maximum <strong>Safety</strong> Values<br />
U N Nominal voltage I max Maximum current<br />
through the safety barrier<br />
R min<br />
R max<br />
Minimum resistance<br />
of the safety barrier<br />
Maximum resistance<br />
of the safety barrier<br />
P o<br />
Maximum power<br />
U o Maximum voltage L o Maximum permissible<br />
external inductance<br />
I o Maximum current C o Maximum permissible<br />
external capacity<br />
2/5<br />
Automation 03.08.2010
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