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Beckhoff KM1644

Bus Terminal module, 4-channel digital input, 24 V DC, manual operation

MPN: KM1644
Category: KL1xxx | Digital input

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12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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What is the Beckhoff KM1644?

The digital KM1644 input terminal is used for manual input directly in the process data. The four switches supply their status to the control system as digital bit information. The four LEDs indicate the four output bits from the process data and cannot

Specifications

Specification	manual operation level
Number of inputs	4
Number of outputs	4
Nominal voltage	–
Current consumption K-bus	typ. 20 mA
Current consumption power contacts	– (no power contacts)
Switch settings	ON, OFF, PUSH
Bit width in the process image	4 inputs + 4 outputs
Special features	manual/emergency operation
Weight	approx. 65 g
Storage temperature	-25…+85°C
Operating temperature	0…55°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
Design form	compact terminal housing with signal LEDs
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	–
Wiring	specific push-in connection
Dimensions (W x H x D)	24 mm x 100 mm x 52 mm

KM1644: frequently asked questions

When can KM1644 be shipped?

KM1644 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up KM1644 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for KM1644 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for KM1644, subject to availability and destination.