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Beckhoff KL3403

Bus Terminal, 3-channel analog input, power measurement, 500 V AC, 1 A, 16 bit

MPN: KL3403
Category: KL3xxx | Analog input

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Beckhoff KL3403?

The KL3403 Bus Terminal enables the measurement of all relevant electrical data of the supply network. The voltage is measured via the direct connection of L1, L2, L3 and N. The current of the three phases L1, L2 and L3 is fed via simple current

Specifications

Number of inputs	3 x current, 3 x voltage
Technology	3-phase power measurement
Measured values	current, voltage, effective power, energy, cos φ, peak values U, I and P, frequency
Measuring voltage	max. 500 V AC 3~ (ULX-N: max. 288 V AC)
Measuring current	max. 1 A, via measuring transformers x A/1 A
Resolution	16 bit (21 bit, internal)
Measurement error/uncertainty	0.5% relative to full scale value (U, I), 1% calculated value
Measuring procedure	true RMS with 64,000 samples/s
Update time	50 ms per measured value preset, free configurable
Electrical isolation	1500 V (K-bus/field potential)
Current consumption power contacts	– (no power contacts)
Current consumption K-bus	typ. 115 mA
Bit width in the process image	input/output: 3 x 16 bit data, 3 x 8 bit control/status
Special features	energy meter, power measurement, true RMS
Weight	approx. 75 g
Operating temperature	-25…+60°C
Storage temperature	-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
Pluggable wiring	for all KSxxxx Bus Terminals
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	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
Connection cross-section AWG	s: AWG28…14, st: AWG28…14, f*: AWG26…16
Stripping length	8…9 mm
Current load power contacts	Imax: 10 A
Dimensions (W x H x D)	12 mm x 100 mm x 68 mm

KL3403: frequently asked questions

When can KL3403 be shipped?

KL3403 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 KL3403 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 KL3403 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 KL3403, subject to availability and destination.