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Beckhoff EJ1254

EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

MPN: EJ1254
Category: EJ1xxx | 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 EJ1254?

The EJ1254 EtherCAT plug-in module acquires the fast binary 24 V control signals from the process level and transmits them, in an electrically isolated form, to the controller. The module has four channels that indicate their signal state via light

Specifications

Specification	similar to EN 61131-2, type 3, “0”: -3…5 V DC, “1”: 11…30 V DC, typ. 3 mA input current
Connection technology	4-wire
Number of inputs	4
Nominal voltage	24 V DC (-15%/+20%)
“0” signal voltage	-3…+5 V (similar to EN 61131-2, type 3)
“1” signal voltage	11…30 V (similar to EN 61131-2, type 3)
Input current	typ. 3 mA (similar to EN 61131-2, type 3)
Input filter	typ. 1 µs
Resolution timestamp	1 ns
Precision of timestamp in the terminal	10 ns (+ input delay)
Distributed clock precision	1 µs
Input delay TON/TOFF	1 µs
Distributed clocks	yes
Time resolution signal	1 ns
Auxiliary power current	typ. 10 mA + load
Current consumption E-bus	typ. 135 mA
Electrical isolation	500 V (E-bus/field potential)
Special features	timestamping, latch last edge
Weight	approx. 30 g
Operating temperature	-25…+60°C
Storage temperature	-40…+85°C
Relative humidity	95%, no condensation
EMC immunity/emission	conforms to EN 61000-6-2/EN 61000-6-4
Vibration/shock resistance	conforms to EN 60068-2-6/EN 60068-2-27
Protect. rating/installation pos.	IP20/see documentation
Approvals/markings	CE
Design form	EtherCAT I/O plug-in module
Material	polycarbonate
Installation	on signal distribution board
Mechanical coding	EJ plug-in module: signal-specific coding pins on the housing, signal distribution board: holes in the printed circuit board
Position of the coding pins	1, 3
Locking	latching lug in circuit board cut-out
Connection method	field wiring: application-specific wiring level on the signal distribution board, EJ plug-in module: 2 x 20-pin socket strip
Dimensions (W x H x D)	12 mm x 66 mm x 55 mm

EJ1254: frequently asked questions

When can EJ1254 be shipped?

EJ1254 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 EJ1254 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 EJ1254 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 EJ1254, subject to availability and destination.