KL1904 | Bus Terminal, 4-channel digital input, 24 V DC, TwinSAFE

Name: Bus Terminal, 4-channel digital input, 24 V DC, TwinSAFE
Brand: Beckhoff
SKU: KL1904

The KL1904 safety Bus Terminal is a digital input terminal for sensors with potential-free contacts for 24 V DC and has four fail-safe inputs.

Product status:

regular delivery

Product information

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Technical data	KL1904
Connection technology	2-wire
Number of inputs	4
Protocol	TwinSAFE/Safety over EtherCAT
Response time	typ. 4 ms (read input/write to K-bus)
Fault response time	≤ watchdog time (parameterizable)
Current consumption power contacts	–
Current consumption K-bus	48 mA
Installation position	horizontal
Safety standard	DIN EN ISO 13849-1:2008 (Cat. 4, PL e) and EN 61508:2010 (SIL 3)
Weight	approx. 50 g
Protection rating	IP20
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
Design form	compact terminal housing with signal LEDs	terminal housing with pluggable wiring level
Material	polycarbonate
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 BZxxxx 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	I_max: 10 A
Dimensions (W x H x D)	12 mm x 100 mm x 68 mm

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

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