Product Overview

The SIMATIC DP PROFIBUS connection plug (MLFB: 6ES7972-0BB12-0XA0) is a compact, high-functionality bus connector designed for PROFIBUS DP networks. It supports data rates up to 12 Mbit/s, features a 90° cable outlet, and integrates a terminating resistor with isolation for improved network stability and troubleshooting. It also includes a PG (programming) socket for seamless diagnostics and commissioning.
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Technical Specifications

Data Transmission

Transfer Rate: 9.6 kbit/s to 12 Mbit/s—fully compatible with PROFIBUS DP requirements
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Physical & Mechanical

Form Factor: 90° right-angle cable outlet

Dimensions: 15.8 mm (W) × 64 mm (H) × 35.6 mm (D)
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Weight: ~10 g
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Material: Robust plastic enclosure; silicon-free design
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Electrical & Network Interface

Connectors:

Two screw terminals for PROFIBUS cables

One 9-pin Sub-D female connector for PG/device connection
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Terminating Resistor: Integral with slide-switch for flexible activation and isolation
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Environmental & Protection

Operating Temperature: 0 °C to +60 °C; storage/transport: –40 °C to +70 °C
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Protection Rating: IP20; suitable for control cabinet environments
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Standards & Compliance

Certifications:

RoHS compliant
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UL recognized
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Network Isolation: Offers enhanced termination integrity to preserve bus signal quality
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Lifecycle & Logistics

Product Status: Active product (PLM: PM300)
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Lead Time: Typically ships ex-works within 1 day
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Weight & Packaging:

Net weight: ~0.060 kg (60 g) including packaging
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Packaging dimensions: 6.8 × 8.0 × 3.2 cm
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Country of Origin: Germany
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Product Codes:

EAN: 4025515067085

UPC: 662643125351

HS Code: 85366990
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Compliance & Classification

RoHS Compliant since July 1, 2010
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WEEE: Take-back obligation applies
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REACH Article 33: Contains lead monoxide above 0.1 %—use as intended; disclosures available
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Classification Codes:

eClass 12 / 14: 27-44-01-13

ETIM 7 / 8 / 9: EC002636

UNSPSC: 32-15-17-03
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Engineering Insights

Optimal Network Decoupling
The integrated terminating resistor with isolation and slide-switch minimizes reflections and simplifies diagnostics along the PROFIBUS network.

Compact & Durable Design
At just ~10 g and featuring a right-angle cable exit, this connector saves space and reduces mechanical strain on infrastructure cables.

Convenient Diagnostic Access
The built-in PG socket enables convenient inline access for commissioning, programming, and troubleshooting without disrupting network flow.

Wide Environmental Range
The IP20-rated housing combined with a broad operational temperature range ensures reliable performance in industrial cabinets.

Streamlined Deployment
Ready-to-deploy with rapid lead times and German manufacturing quality—ideal for both greenfield projects and retrofits.