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KL4021 | Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended

KL4021 | Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended

KL4021 | Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended

Run LED 1
Power contact
+24 V
Power contact 0 V
+Output 1
Shield
+24 V
0 V
Shield
Top view 
Contact assembly 
KL4021 | Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended

KL4021 | Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended

The KL4021 analog output terminal generates analog output signals in the range from 4 to 20 mA. The power is supplied to the process level with a resolution of 12 bits and is electrically isolated. Ground potential for the output channels of a Bus Terminal is common with the 24 V DC supply. The output stages are powered by the 24 V supply. The run LEDs give an indication of the data exchange with the Bus Coupler.

Product status:

regular delivery

Product information

Technical dataKL4021
Technologysingle-ended
Number of outputs1
Power supply24 V DC via power contacts (alternative 15 V DC with power supply terminal KL9515)
Signal current4…20 mA
Load< 500 Ω
Output error< ±0.1 % (relative to end value)
Resolution12 bit
Conversion time~ 1.5 ms
Electrical isolation500 V (K-bus/signal voltage)
Current consumption power contactstyp. 30 mA + load
Current consumption K-bustyp. 60 mA
Bit width in the process imageoutput: 1 x 16 bit data (1 x 8 bit control/status optional)
Configurationno address or configuration setting
Weightapprox. 80 g
Operating/storage temperature0…+55 °C/-25…+85 °C
Relative humidity95 %, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP20/variable
Pluggable wiringfor all KSxxxx Bus Terminals
Approvals/markingsCE, UL, ATEX, IECEx, DNV GL
Ex markingATEX:
II 3 G Ex nA IIC T4 Gc
IECEx:
Ex ec IIC T4 Gc
Housing dataKL-12-8pinKS-12-8pin
Design formcompact terminal housing with signal LEDsterminal housing with pluggable wiring level
Materialpolycarbonate
Dimensions (W x H x D)12 mm x 100 mm x 68 mm
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection
Markinglabeling of the BZxxx series
Wiringsolid conductor (e), flexible conductor (f) and ferrule (a): spring actuation by screwdriver
Connection cross-sections*: 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 AWGs*: AWG 28…14,
st*: AWG 28…14,
f*: AWG 26…16
s*: AWG 28…16,
st*: AWG 28…16,
f*: AWG 26…16
Stripping length8…9 mm9…10 mm
Current load power contactsImax: 10 A

*s: solid wire; st: stranded wire; f: with ferrule

Ordering information
KL4021Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended
KS4021Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended, pluggable wiring
KL4021-0050Bus Terminal, 1-channel analog output, current, 4…20 mA, 12 bit, single-ended, Siemens S7 format

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