Pepperl+Fuchs KFD2-CR4-1
Transmitter Power Supply
- 1-channel signal conditioner
- 24 V DC supply (Power Rail)
- Input 2-wire and 3-wire transmitters and 2-wire current sources
- Output 0/4 mA ... 20 mA
- Accuracy 0.1 %
- Up to SIL 2 acc. to IEC 61508
- Overview +
- Comments +
This compact relay module, KFD2-CR4-1, features four relay outputs and is designed for safe signal transmission between field devices and control systems. It is ideal for applications where electrical isolation is critical, ensuring that output signals remain accurate and interference-free in challenging environments.
Datasheet:
| KFD2-CR4-1 art.228759 |
Available voltageterminals 1+, 3: 15.7 V at 20 mA
| Rise time | 20 micro/s |
| Output signal | 0/4 ... 20 mA |
| Electromagnetic compatibility | NE 21:2011 |
| Ripple | within the supply tolerance |
| Load | 0 ... 800 andOmega; |
| Dimensions | 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2 |
| Power dissipation | 1.3 W |
| Input signal | 0/4 ... 20 mA |
| Rated voltage | 20 ... 35 V DC |
| Input resistance | terminals 2-, 3: max. 64 andOmega; terminals 1+, 3: max. 500 andOmega; (250 andOmega; load) |
| Connection side | control side |
| Connection | terminals 1+, 2-, 3- |
| Connection side | field side |
| Connection | Power Rail or terminals 14+, 15- |
| Degree of protection | IEC 60529:2001 |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Signal type | Analog input |
| Ripple | 50 mV ss at 20 mA |
| Ripple | max. 50 andmicro;A rms |
| Display elements | LED |
| Degree of protection | IP20 |
| Settling time | 200 micro/s |
| Deviation | at 20 ?°C (68 ?°F), 0/4 ... 20 mA 10 andmicro;A incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage |
| Ambient temperature | -20 ... 60 ?°C (-4 ... 140 ?°F) |
| Labeling | space for labeling at the front |
| Connection | screw terminals |
| Safety Integrity Level (SIL) | SIL 2 |
| Connection | terminals 7-, 8+, 9 |
| Open circuit voltage/short-circuit current | terminals 1+, 3-: 22.7 V / 38 mA |
| Mass | approx. 150 g |
| Power consumption | 1.6 W |
| De-energized delay | 20 micro/s |
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