Pepperl+Fuchs KFD2-STC3-Ex1
SMART Transmitter Power Supply

Pepperl+Fuchs KFD2-STC3-Ex1
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  • 1-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • 2-wire SMART transmitter
  • Output 4 mA ... 20 mA
  • SMART capable up to 40 kHz (-1dB)
  • Suitable for Honeywell DE protocol
  • Terminals with test points
Item Number: KFD2-STC3-Ex1
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Ambient temperature-20 ... 60 ?°C (-4 ... 140 ?°F)
EU-Type Examination CertificateBAS 01 ATEX 7369
Rated voltage20 ... 35 V DC
Dimensions20 x 115 x 115 mm (0.8 x 4.5 x 4.5 inch) , housing type B1
ConnectionPower Rail or terminals 7+, 8-
Connection sidecontrol side
Frequency rangefield side into the control side: bandwidth with 1 mApp signal 0 ... 40 kHz (-1 dB); 0 ... 50 kHz (-6 dB)
safe area to hazardous area: bandwidth with 250 mVpp signal 2 Hz ... 40 kHz (-1 dB); 1 Hz ... 50 kHz (-6 dB)
Power dissipation 1.6 W
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
Available voltageapprox. 17 V at 4 ... 20 mA
Rise time10 micro/s
CertificateBASEEFA 09 ATEX 0218X
Signal typeAnalog input
Input signal4 ... 20 mA
Degree of protectionIP20
Massapprox. 150 g
Optional accessories- power feed module KFD2-EB2(.R4A.B)(.SP)
- universal power rail UPR-03(-M)(-S)
- profile rail K-DUCT-BU(-UPR-03)
Degree of protectionIEC 60529:2001
Connectionterminals 1+, 3-
Electromagnetic compatibilityNE 21:2006
Output/power supplyfunctional insulation, rated insulation voltage 50 V AC
Deviation 0.05 % of output signal range (current output), 10 andmicro;A at 20 ?°C (68 ?°F)
Labelingspace for labeling at the front
Connection sidefield side
Ripple 0.05 % of output signal range
Connectionscrew terminals
Display elementsLED
Ripplewithin the supply tolerance
Output signal4 ... 20 mA , max. load 1000 andOmega; , for HART 230 andOmega;, Honeywell DE 230 ... 280 andOmega; (transmitter and communicator dependent)
Connectionterminals 9+, 10-, 11+
Power consumption 2 W

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