Description
KL4428 | Bus Terminal, 8-channel analog output, current, 4…20 mA, 12 bit, single-ended
The KL4428 analog output terminal generates signals in the range between 4 to 20 mA. The power is supplied to the process level with a resolution of 12 bits and is electrically isolated. The output stage is powered by the 24 V supply. The KL4428 combines eight channels in one housing and is particularly suitable for space-saving installation in control cabinets. The use of single conductor connection technology enables the connection of multi-channel actuator technology with minimum space requirements.
The Bus Terminal has a common ground potential. The power contacts are connected through. The reference ground of the outputs is the 0 V power contact. The LEDs indicate the data exchange with the Bus Coupler.
Product information
| Technical data | KL4428, KS4428 |
| Technology | single-ended |
| Number of outputs | 8 |
| Power supply | 24 V DC via power contacts (alternative 15 V DC with power supply terminal KL9515) |
| Signal current | 4…20 mA |
| Load | < 150 Ω (short-circuit proof) |
| Output error | < ±0.2 % (relative to end value) |
| Resolution | 12 bit |
| Conversion time | ~ 8 ms |
| Electrical isolation | 500 V (K-bus/signal voltage) |
| Current consumption power contacts | typ. 60 mA + load |
| Current consumption K-bus | typ. 20 mA |
| Bit width in the process image | output: 8 x 16 bit data (8 x 8 bit control/status optional) |
| Special features | increased packing density |
| Weight | approx. 75 g |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C |
| Relative humidity | 95 %, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. | IP20/variable |
| Pluggable wiring | for all KSxxxx Bus Terminals |
| Approvals/markings | CE, UL, ATEX, DNV GL |
| Ex marking | II 3 G Ex nA IIC T4 Gc |
| Housing data | KL-12-8pin | KS-12-8pin |
| Design form | compact terminal housing with signal LEDs | terminal housing with pluggable wiring level |
| Material | polycarbonate | |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm | |
| Installation | on 35 mm DIN rail, conforming to EN 60715 with lock | |
| Side by side mounting by means of | double slot and key connection | |
| Marking | labeling of the BZxxx series | |
| Wiring | solid conductor (e), flexible conductor (f) and ferrule (a): spring actuation by screwdriver | |
| Connection cross-section | s*: 0.08…2.5 mm², st*: 0.08…2.5 mm², f*: 0.14…1.5 mm² |
s*: 0.08…1.5 mm², st*: 0.08…1.5 mm², f*: 0.14…1.5 mm² |
| Connection cross-section AWG | s*: AWG 28…14, st*: AWG 28…14, f*: AWG 26…16 |
s*: AWG 28…16, st*: AWG 28…16, f*: AWG 26…16 |
| Stripping length | 8…9 mm | 9…10 mm |
| Current load power contacts | Imax: 10 A | |
*s: solid wire; st: stranded wire; f: with ferrule
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