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KFD0 SCS Ex1.55
SMART - isolating transformer

Service indended: Supply unit with intrinsically safe circuit class [Ex ib] IIC for tansmitters, Position monitors and I/P converter for hazardous areas.


 

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Technical Details
Operation Manual
Declaration of conformit
Technical Data
Case dimensions
20 x 107 x 115 mm
Mounting
Rail :
35 mm to EN 50022
Degree of protection
IP 20 to EN 60529
Wiring
Screw terminals
Feed circuit (non-intrinsically safe)
Nominal voltage : 20 ... 30 VDC
Nominal current : 4 ... 20 mA
Internal dissipation : 150 mW
Field circuit (intrinsically safe)
Output voltage : ≥ 16 V
Signal current : 4 ... 20 mA
Load : ≤ 800 Ohm
Data acc. to
certificate of conformity
PTB Nr. : Ex-97.D.2048
Max. voltage : 32,1 V DC
Max. current : 28 mA
Max. power : 647 mW
Ignition protection class: [Ex ib]
Explosion group : IIC
CA : 63 nF
LA : 0,5 mH
Voltage drop
Transmitter feed isolation : ≤5 V
Isolating transformer : 5 ... 8 V
Permissible temperatures Tmin / Tmax
Ambient temperature: -20 ... + 60 °C
Accuracy
Temperature drift : < 5 μA / 10 K
Weight
Approx. 0,12 kg
Order-No.
115723