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KFD2-STC4-Ex1.2O SMART Transmitter Power Supply
Key Benefits at a Glance
- 1-channel isolated barrier
- 24 V DC supply (Power Rail)
- Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources
- Signal splitter (1 input and 2 outputs)
- Dual output 0/4 mA ... 20 mA
- Terminal blocks with test sockets
- Up to SIL 3 acc. to IEC/EN 61508
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Note
All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.
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Technical data of KFD2-STC4-Ex1.2O
| Signal type | Analog input |
| Safety Integrity Level (SIL) | SIL 3 |
| Connection | Power Rail or terminals 14+, 15- | |
| Rated voltage | Ur | 20 ... 35 V DC |
| Ripple | within the supply tolerance | |
| Power dissipation | 1.8 W | |
| Power consumption | 2.4 W |
| Connection side | field side | |
| Connection | terminals 1+, 2-, 3 or 5-, 6+ | |
| Input signal | 0/4 ... 20 mA | |
| Open circuit voltage/short-circuit current | terminals 1+, 3-: 22.7 V / 38 mA | |
| Voltage drop | terminals 5, 6 : ≤ 2.4 V at 20 mA | |
| Input resistance | terminals 2-, 3: max. 76 Ω terminals 1+, 3: max. 500 Ω (250 Ω load) | |
| Available voltage | terminals 1+, 3: ≥ 16 V at 20 mA |
| Connection side | control side | |
| Connection | terminals 7-, 8+,9; 10-, 11+,12 | |
| Load | 0 ... 550 Ω at 20 mA | |
| Output signal | 0/4 ... 20 mA (overload > 25 mA) | |
| Ripple | max. 50 µA rms |
| Deviation | at 20 °C (68 °F), 0/4 ... 20 mA ≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage | ||||
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| Frequency range | field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 7.5 kHz (-3 dB) control side into the field side: bandwidth with 0.5 Vpp signal 0.3 ... 7.5 kHz (-3 dB) | ||||
| Settling time | 200 µs | ||||
| Rise time/fall time | 20 µs | ||||
| Output/power supply | functional insulation, rated insulation voltage 50 V AC | |
| Output/Output | functional insulation, rated insulation voltage 50 V AC |
| Display elements | LED | |
| Labeling | space for labeling at the front |
| Electromagnetic compatibility | |||||
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| Electromagnetic compatibility | NE 21:2011 | |
| Degree of protection | IEC 60529:2001 | |
| Protection against electrical shock | UL 61010-1:2012 |
| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) |
| Degree of protection | IP20 | ||||||||||
| Connection | screw terminals | ||||||||||
| Mass | approx. 200 g | ||||||||||
| Dimensions | 20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) , (W x H x D) housing type B2 | ||||||||||
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| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 | ||||||||||
| EU-type examination certificate | BAS 99 ATEX 7060 X | ||||||||||||||||
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| Supply | |||||||||||||||||
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| Equipment | terminals 1+, 3- | ||||||||||||||||
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| Equipment | terminals 2-, 3 | ||||||||||||||||
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| Equipment | terminals 1+, 2 / 3- | ||||||||||||||||
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| Equipment | terminals 5-, 6+ | ||||||||||||||||
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| Output | |||||||||||||||||
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| Certificate | TÜV 99 ATEX 1499 X | ||||||||||||||||
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| Galvanic isolation | |||||||||||||||||
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| Directive conformity | |||||||||||||||||
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II (1)G [Ex ia Ga] IIC , [exsign] II (1)D [Ex ia Da] IIIC , [exsign] I (M1) [Ex ia Ma] I| UL approval | ||||||||
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| IECEx approval | ||||||||
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| Note | Both output loads must be connected to ensure complete and correct operation within the technical specification. Open circuit of one of the two outputs will not affect the connected output, but would result in a loss of transmitter supply voltage of up to 0.7 Volt. | |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |