Beckhoff BK3120 Bus Coupler
Beckhoff BK3120 Bus Coupler

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Beckhoff

Beckhoff BK3120 Bus Coupler, PROFIBUS, Economy plus

SKU: BK3120
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$359.74
In stock (94 units)
Condition
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Beckhoff Automation · I/O · Bus Terminals · Bkxxxx Bus Coupler

Beckhoff BK3120 Bus Coupler

Technical data for the BK3120, reproduced from the Beckhoff product page for this item number.

Bus interface1 x D-sub 9-pin socket with shielding
Weightapprox. 170 g
Power supply24 V DC (-15%/+20%)
Power contactsmax. 24 V DC/max. 10 A

How it works

This page reproduces the technical data Beckhoff publishes for this item number, including the values needed for cabinet design, spares planning and replacement decisions.

Specifications

Technical data
Number of Bus Terminals64 (255 with K-bus extension)
Max. number of bytes fieldbus128 byte input and 128 byte output
Transmission rateautomatic detection up to 12 Mbaud
Bus interface1 x D-sub 9-pin socket with shielding
Transmission mediumshielded copper cable, 2 x 0.25 mm²
Power supply24 V DC (-15%/+20%)
Input current70 mA + (total K-bus current)/4, 500 mA max.
Current supply K-bus1750 mA
Power contactsmax. 24 V DC/max. 10 A
Electrical isolation500 V (power contact/supply voltage/fieldbus)
Housing data
Design formcompact terminal housing with signal LEDs
Materialpolycarbonate
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection

Order number

BK3120 — Beckhoff product page, technical data

Official source

https://www.beckhoff.com/en-us/products/i-o/bus-terminals/bkxxxx-bus-coupler/bk3120.html

FAQ

Where do these values come from?

They are taken from the technical data Beckhoff publishes for item number BK3120, on the product page linked below.

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Standard (US & Canada, tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders under $500.00; free on orders of $500.00 and above.

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Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.

This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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