Home / B&R / Plug-in modules / B&R 8AC125.61-2 – BiSS encoder interface (Mode C) for installation in ACOPOS…

Available on request

B&R 8AC125.61-2 – BiSS encoder interface (Mode C) for installation in ACOPOS…

Name: B&R 8AC125.61-2 – BiSS encoder interface (Mode C) for installation in ACOPOS…
Brand: B&R
SKU: 8AC125.61-2

MPN: 8AC125.61-2 · Brand: B&R

Price on request

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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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Quick facts

Availability	Confirmed on request
Category	Plug-in modules
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)
Datasheet	Manufacturer datasheet ↗

Shipping & availability

When can 8AC125.61-2 be shipped?

8AC125.61-2 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 8AC125.61-2 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 8AC125.61-2 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 8AC125.61-2, subject to availability and destination.

• BiSS encoder interface (Mode C) for installation in ACOPOS servo drives

• 6.25 Mbit/s, 12 V encoder supply

• Encoder monitoring

ACOPOS plug-in module, BiSS encoder interface 12 V, baud rate 6.25 Mbit/s

Specifications

General information

Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – CRA (Cyber Resilience Act)	Non-compliant
Certifications – UL	cULus E225616; Power conversion equipment
Certifications – KC	Yes
Module type	ACOPOS plug-in module
B&R ID code	0xBD5A
Slot " data-placement="top" data-html="true" data-container="body" data-content="The AC125 is an encoder module. It is also possible to connect multiple encoder modules. In this case, the encoder module in the smallest slot automatically serves as motor feedback.">	Slots 2, 3 and 4
Max. power consumption	5.8 W

Encoder connection " data-placement="top" data-html="true" data-container="body" data-content="Only B&R 8BCF EnDat 2.2 cables are permitted to be used for wiring the module.">

Electrical isolation – Encoder - ACOPOS	No
Module-side connection	9-pin female DSUB
Status indicators	UP/DN LEDs
Encoder monitoring	Yes
Max. encoder cable length	100 m; Depends on the cross section of the power supply wires in the encoder cable " data-placement="top" data-html="true" data-container="body" data-content="Maximum encoder cable length l<sub>max</sub> can be calculated as follows (the maximum permissible encoder cable length of 100 m is not permitted to be exceeded): <br><br>l<sub>max</sub> = 2.5 * A / [(I<sub>G</sub> + 0.03) * ρ] <br><br>I<sub>G</sub> ... Max. current consumption of the encoder [A]<br> A ... Cross section of the power supply wires [mm²]<br> ρ ... Specific resistance [Ωmm²/m] (e.g. for copper: ρ = 0.0178)">

Encoder power supply

Protective measures – Overload-proof	Yes
Protective measures – Short-circuit proof	Yes
Output voltage	Typ. 12 V
Load capacity	350 mA

Synchronous serial interface

Signal transmission	RS485
Baud rate	6.25 Mbit/s

Ambient conditions

Temperature – Nominal	5 to 40°C
Temperature – Maximum	55°C
Temperature – Storage	-25 to 55°C
Temperature – Transport	-25 to 70°C
Relative humidity – Operation	5 to 85%
Relative humidity – Storage	5 to 95%
Relative humidity – Transport	Max. 95% at 40°C

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

Datasheet 8AC125.61-2	PDF · 470 KB · 1.2 (04/24/2020) - EN
ACOPOS User´s Manual	PDF · 54 MB · 2.10 (05/23/2022) - EN

Certificates (4)

ACOPOS KC certificates	ZIP · 601 KB · 1.00 (04/03/2019)
E225616 UL Certificate of Compliance ACOPOS	PDF · 242 KB · 1.1 (09/11/2019)
EU Declaration Servos ACOPOS	PDF · 271 KB · 2024-02 (10/29/2025)
UK Declaration Servos ACOPOS	PDF · 109 KB · 2022-09 (09/08/2022)

12-month warrantyon all new stock

3-month warrantyon used & refurbished parts

30-day returnsno restocking fee on unused parts

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