4-channel analog output terminal 4?20 mA, 12 bit

4 x 2-wire system

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The KL4424 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. In the KL4424, the four outputs are 2-wire versions.

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.

Technical data KL4424, KS4424
Technology single-ended
Number of outputs 4
Power supply 24 V DC via power contacts (alternative 15 V DC with power supply terminal KL9515)
Signal current 4…20 mA
Load < 350 Ω (short-circuit proof)
Output error < ±0.1 % (relative to end value)
Resolution 12 bit
Conversion time ~ 4 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: 4 x 16 bit data (4 x 8 bit control/status optional)
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, IECEx, cFMus
Ex marking ATEX:
II 3 G Ex nA IIC T4 Gc
Ex nA IIC T4 Gc
Ex tc IIIC T135 °C Dc
Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, AEx ec 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



Data Sheet: controldrawing_io_cx_cpx_en


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