![KL3448 | Bus Terminal, 8-channel analog input, current, 0…20 mA, 12 bit, single-ended](https://multimedia.beckhoff.com/media/kl3448_ks3448__web_preview.png)
The KL3448 analog input terminal processes signals in the range between 0 and 20 mA. The current is digitized to a resolution of 12 bits and is transmitted, in an electrically isolated form, to the higher-level automation device. The KL3448 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 sensor technology with minimum space requirements. The reference ground for all inputs is the 0 V power contact. The power contacts are connected through. Overload is detected. The terminal status is relayed to the controller via the K-bus. The LEDs indicate the data exchange with the Bus Coupler as well as overload or wire breakage.
Product status:
regular delivery
Product information
Technical data | KL3448 |
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Number of inputs | 8 |
Power supply | via the K-bus |
Signal current | 0…20 mA |
Technology | single-ended |
Internal resistance | < 85 Ω |
Common-mode voltage UCM | – |
Conversion time | ~ 4 ms |
Resolution | 12 bit |
Measurement error/uncertainty | < ±0.3% (relative to full scale value) |
Surge voltage resistance | 30 V DC |
Electrical isolation | 500 V (K-bus/signal voltage) |
Current consumption power contacts | – |
Current consumption K-bus | typ. 105 mA |
Bit width in the process image | input: 8 x 16 bit data (8 x 8 bit control/status optional) |
Configuration | no address or configuration setting |
Special features | high packing density |
Weight | approx. 55 g |
Operating/storage temperature | -25…+60°C/-40…+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 |
Approvals/markings | CE, UL, ATEX, IECEx, DNV GL |
Pluggable wiring | for all KSxxxx Bus Terminals |
Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
Housing data | KL-12-8pin | KS-12-8pin |
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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 (s), flexible conductor (st) and ferrule (f): 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*: AWG28…14, st*: AWG28…14, f*: AWG26…16 | s*: AWG28…16, st*: AWG28…16, f*: AWG26…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
Ordering information | |
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KL3448 | Bus Terminal, 8-channel analog input, current, 0…20 mA, 12 bit, single-ended |
KS3448 | Bus Terminal, 8-channel analog input, current, 0…20 mA, 12 bit, single-ended, pluggable wiring |
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