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Beckhoff BK5250

DeviceNet® Compact Bus Coupler

MPN: BK5250
Category: BKxxxx | Bus Coupler

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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 BK5250?

The Compact Bus Coupler BK5250 for DeviceNet® extends the Beckhoff Bus Terminal system by a cost-optimized version in a compact housing. Up to 64 Bus Terminals are supported; with the terminal bus extension, up to 255 Bus Terminals can be connected. The

Specifications

Number of Bus Terminals	64 (255 with K-bus extension)
Max. number of bytes fieldbus	512 byte input and 512 byte output
Digital peripheral signals	1,020 inputs/outputs
Analog peripheral signals	256 inputs/outputs
Configuration	via KS2000 or the controller
Data transfer rates	automatic detection
Bus interface	1 x open pluggable connector, 5-pin, included
Data transfer medium	screened, twisted copper wire with power supply, 5-pin
Power supply	24 V DC (-15%/+20%), through bus cable 11…25 V (conforms to DeviceNet® specification)
Interfaces	configuration interface
Diagnostics LED	2 x power supply, 2 x K-bus, 2 x fieldbus
Current supply K-bus	1750 mA
Power contacts	max. 24 V DC/max. 10 A
Electrical isolation	500 V (power contact/supply voltage Bus Coupler)
Operating modes	bit strobe, polling, cyclic, change of state (COS)
Type	communications adapter
Weight	approx. 100 g
Operating temperature	-25…+60°C
Storage temperature	-40…+85°C
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, CCC, UL, ATEX, IECEx
Ex marking	ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc
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
Stripping length	8…9 mm
Current load power contacts	Imax: 10 A
Dimensions (W x H x D)	44 mm x 100 mm x 68 mm

BK5250: frequently asked questions

When can BK5250 be shipped?

BK5250 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 BK5250 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 BK5250 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 BK5250, subject to availability and destination.