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"Thumbs up to Rob for helping out with an urgent requirement we had on a Friday afternoon. The part we wanted was over in Europe and Rob went out of his way to get it ordered and on site here for the following Tuesday."
The Pepperl + Fuchs KFD0-CS-1.50 is a high-precision DC repeater designed to provide galvanic isolation for measuring circuits in industrial settings. This one-channel device is loop-powered and requires no auxiliary power, making it an efficient solution for a variety of applications. It boasts an accuracy of 0.1%, ensuring reliable and accurate signal transmission.
Constructed to meet the rigorous standards of EMC according to NAMUR NE 21, the KFD0-CS-1.50 is suitable for use with positioners, I/P converters, transmitters, and indicators. Its input and output are galvanically isolated, which protects signal integrity and prevents electrical interference.
The unit's technical specifications include an input rated voltage of 10 to 35 V and a rated current of 4 to 20 mA. The output voltage is designed to be ≥ 0.9 x Uin - (0.23 x current in mA) - 0.7 for input voltages between 10 V and 26.1 V, and ≥ 23 V - (0.23 x current in mA) for input voltages above 26.1 V. The short-circuit current is limited to ≤ 100 mA, and the transfer current is ≤ 25 mA.
With a deviation after calibration of ± 20 µA, which includes calibration, linearity, hysteresis, and load fluctuations up to a load of 1 kOhm at 20 °C, the KFD0-CS-1.50 maintains its precision across a range of conditions. The rise time is ≤ 5 ms at 4 to 20 mA with an input voltage of less than 26 V, ensuring swift response times for dynamic processes.
The device is safely electrically isolated according to EN 50020 with a voltage peak value of 375 V, and it conforms to the directives of electromagnetic compatibility as per EN 50081-2 and EN 50082-2. It also meets the insulation coordination and electrical isolation standards of EN 50178.
Designed for durability and reliability, the KFD0-CS-1.50 operates within an ambient temperature range of -20 to 60 °C and is housed in a compact enclosure with IP20 protection. Weighing approximately 100 g and measuring 20 x 107 x 115 mm, it is both lightweight and space-efficient for easy integration into existing systems.
The KFD0-CS-1.50 is ideal for isolating power loops for control of various field devices and can also be used for signal duplication, although not free of reactions, with one input and two outputs. This makes it a versatile component for a wide range of industrial automation tasks.
| Specification | Description |
|---|---|
| Part Number | KFD0-CS-1.50 |
| Alternative Part Number | KFD0CS150 |
| Manufacturer | Pepperl + Fuchs |
| Signal Type | Analogue output |
| Supply Voltage | Loop powered |
| Power Loss | 0.2 W |
| Input Connection | Terminals 12-, 11+; 8-, 10-, 9+ |
| Rated Input Voltage (Ui) | 10 ... 35 V |
| Rated Input Current (Ii) | 4 ... 20 mA |
| Output Connection | Terminals 1+, 2-; 4+, 5- |
| Output Voltage | ≥ 0.9 x Uin - (0.23 x current in mA) - 0.7 for 10 V < Uin < 26.1 V |
| Short-circuit Current | ≤ 100 mA |
| Transfer Current | ≤ 25 mA |
| Deviation After Calibration | ± 20 µA incl. calibration, linearity, hysteresis and load fluctuations at 20 °C |
| Ambient Temperature Influence | ≤ 2 µA/K (0 ... +50 °C); ≤ 5 µA/K (-20 ... +60 °C) |
| Rise Time | ≤ 5 ms at 4 ... 20 mA and Uin = input voltage < 26 V |
| Electrical Isolation | Input/output safe electrical isolation acc. to EN 50020, voltage peak value 375 V |
| Electromagnetic Compatibility | Directive 89/336/EEC EN 50081-2, EN 50082-2 |
| Insulation Coordination | EN 50178 |
| Protection Degree | IEC 60529 |
| Ambient Temperature Range | -20 ... 60 °C |
| Protection Degree | IP20 |
| Mass | Approx. 100 g |
| Dimensions | 20 x 107 x 115 mm |
| Application | Isolation of power loops for control of positioners, I/P converters, signal duplication |
Thumbs up to Rob for helping out with an urgent requirement we had on a Friday afternoon. The part we wanted was over in Europe and Rob went out of his way to get it ordered and on site here for the following Tuesday.City Bearings
Absolutely fantastic service. Rob was very helpful. Great communication. Requested part was shipped in no time.Konrad Eliaszuk
Found the component i was looking for ad a great price. Great support from the staff as I was paying using a wire transfer. - Quick delivery and very good packaging.Adriano Tiberi
Found the part we needed at the best price. Spoke to Rob to make sure the part was actually in stock, as many companies don't actually have the part available to ship. It was in stock ready and the part was checked and shipped and received within a couple of days from their German stock. Would definitely use again and recommend.Chris Sentance
FIRST TIME WORKING WITH MARVO. THEY HAD WHAT I NEEDED AND TOOK GREAT CARE OF ME AND GOT MY ORDER OUT IMMEDITELY. WAS VERY IMPRESSED WITH THE SERVICE AND THE PERSON I SPOKE WITH. I WILL DEFINITELY WORK WITH THEM QGAIN IN THE FUTURE.Robert Cohen
Excellent service partially from Mark who stayed late to ensure the part arrived with me same day as this was a critical part for me even though this was my first time using Marvo. I will defiantly be using again.Josh Holt
Extremely Helpful. Shipped me a replacement unit next day and i was up and running within 24 hours. Replacement new from machinery manufacturers was on a 7 day lead time.Sean Conlin
After ordering an urgent part from Marvo i received a great level of customer service and Rob was very helpful.Claire Hinchliff
Excellent service partially from Mark who stayed late to ensure the part arrived with me same day as this was a critical part for me even though this was my first time using Marvo. I will defiantly be using again.Josh Holt
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