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Text version of the page
2/4
2
Automation 17.04.2008
Single-Channel Safety Barriers for Positive Polarity
Series 9001
Single-channel safety barriers for positive polarity
05495E02
• Grounded cicuit
• Current limitation to < 100 mA
• Approved for installation in Division 2 and
Zone 2
Selection Table
UN Rmin. Rmax. Imax. ÄU Safety values Order number
Uo Io Po IIC IIB
Lo Co Lo Co
V Ù Ù mA V V mA mW mH mF mH mF
12 64 73 < 100 < 1.4 15.8 270 1067 0.23 0.478 2.2 2.88 9001/01-158-270-101
12 46 53 < 100 < 1.4 15.8 390 1541 0.16 0.478 0.89 2.88 9001/01-158-390-101
16 57 66 < 100 < 1.4 19.9 390 1940 – – – – 0.89 1.42 9001/01-199-390-101
24 111 124 < 100 < 1.4 28 280 1960 – – – – 0.6 0.65 9001/01-280-280-101
Functional and Maximum Safety Values
UN Rated operating voltage ãU Additional voltage drop
through the safety barrier
Lo Maximum permissible
external inductance
Rmin. Minimum resistance
of the safety barrier
Uo Maximum voltage Co Maximum permissible
external capacity
Rmax. Maximum resistance
of the safety barrier
Io Maximum current
Imax. Maximum current
through the safety barrier
Po Maximum power
0V
0V
Intrinsically safe
field device
Control room
equipment
Safe area Hazardous area
UN
/ PA
-Ue
+Ue / 0V
+Ue
*) Ambient temperature - 20 °C ... + 50 °C