Siemens gk1901-0db20-6aa0

By Abdullah Zahid
11 min read
Siemens 6GK1901-0DB20-6AA0 IE FC M12 Plug PRO D-coded metal connector for PROFINET Industrial Ethernet field installation

Siemens 6GK1901-0DB20-6AA0 IE FC M12 Plug PRO (PROFINET) — Industrial Ethernet FastConnect M12 Plug-In Connector, 4-Pole, D-Coded, With Rugged Metal Enclosure

If you are searching for the Siemens 6GK1901-0DB20-6AA0 by exact catalog number, you are likely in the engineering specification or active procurement phase — validating whether this D-coded M12 PROFINET connector fits your network topology before committing to an order. This is the IE FC M12 Plug PRO, a 4-pole, D-coded M12 plug assembly rated IP65/67 with an integrated FastConnect cut-and-clamp termination system that eliminates crimping tools entirely. It operates at 10/100 Mbit/s, supports PoE and PoE+, and is UL/cULus and RoHS certified — making it a natural fit for PROFINET deployments in demanding factory environments.

If you have already confirmed this is the right part, check current pricing and availability for the 6GK1901-0DB20-6AA0 at LeadTime.ca — ships worldwide.

Who Should Buy the 6GK1901-0DB20-6AA0 — and Who Shouldn't

This connector is the right choice for engineers and integrators deploying PROFINET Industrial Ethernet on factory floors where field termination speed, environmental protection, and installation reliability matter. It is specifically appropriate when all of the following apply:

  • Your device port is D-coded M12 — confirmed on SCALANCE X208PRO, ET200 PRO PN, ET200 eco PN, or any compliant PROFINET D-coded port
  • Your Industrial Ethernet cable has a 6.5 mm overall cross-section with 0.33 mm² (AWG22) conductors
  • Your network runs at 10 Mbit/s or 100 Mbit/s — this connector does not support Gigabit Ethernet
  • You need IP65/67 environmental protection for washdown, dusty, or thermally variable environments (-40 to +85°C)
  • Your project requires UL/cULus and RoHS certification for North American compliance
  • Field technicians will perform termination without crimping tools or soldering equipment

If your devices use A-coded or X-coded M12 ports, if your cable routing requires an angled connector outlet rather than 180-degree axial, or if your network already runs Gigabit Ethernet, a different M12 variant is the correct specification. The 6GK1901-0DB20-6AA0 is D-coded only and limited to 10/100 Mbit/s — these are hard constraints, not preferences.

On this page:

What the 6GK1901-0DB20-6AA0 Actually Does in a PROFINET System

The 6GK1901-0DB20-6AA0 is the physical termination point where your Industrial Ethernet cable meets the D-coded M12 female port on a PROFINET network device. It belongs to the SIMATIC NET IE FC M12 Plug PRO product family and its primary function is field assembly — you bring your cable, insert the conductors into the four integrated cut-and-clamp contact slots, tighten the screw joint to a maximum of 0.6 N·m, and the connector is terminated. No crimping press, no soldering iron, no specialized tooling beyond a standard M12 wrench with 0.5 mm pitch.

The metal enclosure and IP65/67 protection class are not optional extras — they are the reason this connector survives in the same environments as the SCALANCE X208PRO switches and ET200 PRO PN I/O modules it most commonly terminates. Operating temperature range of -40 to +85°C covers the full swing of an outdoor industrial cabinet in winter to a high-temperature production oven room. The connector supports both PoE and PoE+ power delivery, which matters for facilities deploying wireless access points or edge sensors powered directly through the Ethernet cable run.

Each 6GK1901-0DB20-6AA0 supports 10 reusable assembly cycles. That figure directly affects total cost of ownership in facilities that reconfigure production cells or relocate machinery seasonally. A connector that can be removed, re-terminated, and redeployed ten times is a capital asset, not a consumable — particularly in discrete manufacturing and automotive parts environments where line rebalancing is routine.

Typical System Architecture for the IE FC M12 Plug PRO

The 6GK1901-0DB20-6AA0 sits at the field-level termination point in a PROFINET Industrial Ethernet network, bridging structured cable runs from the control cabinet to distributed field devices. Here is where it fits in the typical signal chain:

  • PLC or controller (S7-1500, S7-1200, or equivalent) in the control cabinet provides the PROFINET master, connected via patch panel or managed switch
  • SCALANCE X208PRO or equivalent managed Industrial Ethernet switch distributes network connections across the machine or production zone
  • IE FC TP Industrial Ethernet cable (AWG22, 6.5 mm OD) runs from the switch to the field device location
  • 6GK1901-0DB20-6AA0 terminates the cable end with the FastConnect cut-and-clamp system, providing a D-coded M12 male plug at the field end
  • ET200 PRO PN, ET200 eco PN, or any D-coded PROFINET device receives the plug at its M12 female port to complete the network link

Where This Connector Gets Used: Industries and Machine Types

In automotive assembly and CNC machining environments, the 6GK1901-0DB20-6AA0 is used to connect SCALANCE X208PRO switches to distributed I/O at press stations, robotic cells, and conveyor drive panels. The FastConnect field assembly capability is particularly valued here because machine relocations and line rebalancing are frequent, and having technicians re-terminate cables without calling in a specialist cuts downtime significantly.

Food and beverage processing facilities specify this connector explicitly for its IP67 washdown rating and metal enclosure. Plastic-housed connectors degrade faster in wet zones; the metal enclosure of the 6GK1901-0DB20-6AA0 reduces corrosion risk and supports the hygiene-critical maintenance cycles common in packaging and filling lines.

In pharmaceutical and chemical production, the -40 to +85°C operating range and IP65/67 protection class satisfy the environmental requirements of clean rooms and process areas where humidity reaches 95% at 25°C. The RoHS compliance is also a procurement requirement in these regulated industries.

For multi-site facility rollouts where non-specialist contractors handle physical cable termination, the FastConnect system provides a controlled, repeatable process. Field technicians without crimping training can reliably terminate AWG22 Industrial Ethernet FC cable in a single pass, reducing rework and eliminating the capital cost of crimping tool kits at each site.

Application Typical Deployment
Automotive assembly and CNC control networks SCALANCE X208PRO switch to robot cell or press station via FastConnect field termination
Food and beverage processing lines IP67-rated connection at washdown-exposed ET200 PRO PN I/O modules on conveyor or filling equipment
Pharmaceutical and chemical production High-humidity clean room or process area PROFINET field wiring with RoHS-compliant connectors
Modular and reconfigurable production cells Repeated re-termination across 10 reuse cycles during seasonal line changes or equipment relocation
Multi-site facility rollout by non-specialist technicians Standardized FastConnect termination across remote sites without crimping tools or soldering equipment

Key Specifications: What Engineers Need Before They Order

Specification Value
Transfer Rate 10 Mbit/s, 100 Mbit/s
Connector Coding D-coded (PROFINET)
Protection Class IP65/67
Operating Temperature -40 to +85°C
PoE / PoE+ Support Yes / Yes
Cable Cross-Section (compatible) 6.5 mm OD, 0.33 mm² (AWG22) conductor
Tightening Torque (max) 0.6 N·m
Enclosure Material Metal
Reusable Cycles 10
Certifications UL, cULus, RoHS, Cat5

Full technical specifications are available on the product page at LeadTime.ca.

6GK1901-0DB20-6AA0 vs. Alternative M12 Connector Variants

Variant Type Coding Transfer Rate Cable Outlet FastConnect Best For
6GK1901-0DB20-6AA0 (this model) D-coded 10/100 Mbit/s 180° axial Yes PROFINET field termination, SCALANCE/ET200 devices
A-coded M12 variant A-coded 10/100 Mbit/s Varies Varies Legacy or multi-purpose Industrial Ethernet (non-PROFINET)
X-coded M12 variant X-coded Gigabit Ethernet Varies Varies Multi-protocol or Gigabit Industrial Ethernet networks
Angled M12 variant D-coded 10/100 Mbit/s Angled Varies Space-constrained panels where axial outlet conflicts with cable routing
Non-FastConnect M12 plug D-coded 10/100 Mbit/s Axial No Cost-sensitive applications where crimping tools are already on site

If your architecture uses D-coded PROFINET ports on SCALANCE X208PRO or ET200 PRO PN modules and you need field-installable connectors rated for harsh environments, the 6GK1901-0DB20-6AA0 is the correct choice — check current availability and pricing at LeadTime.ca.

Expert Verdict: Is the FastConnect System Worth the Premium?

For systems integrators and panel builders running PROFINET on SCALANCE X208PRO or ET200 PRO PN infrastructure, the 6GK1901-0DB20-6AA0 is a straightforward specification — the FastConnect cut-and-clamp system genuinely reduces per-connector labor time, and the IP65/67 metal enclosure is not an upgrade from a standard industrial connector, it is the baseline for washdown and dusty environments. The PoE and PoE+ support adds network flexibility at no additional hardware cost, which matters as wireless APs and edge sensors push closer to machine-level Ethernet. The 10-cycle reusability figure is meaningful in automotive and high-change-rate manufacturing — a connector that survives ten reassembly cycles in production cell reconfigurations offsets the initial cost premium over non-FastConnect alternatives within the first two or three line changes.

Where this connector has clear limits: it is a 10/100 Mbit/s device only. If your infrastructure is migrating to Gigabit Industrial Ethernet, the 6GK1901-0DB20-6AA0 is not the correct specification — full stop. The 180-degree axial cable outlet also creates routing challenges in tight panel spaces where angled variants would reduce bend radius stress. And if your budget is constrained and crimping tools are already on site, the non-FastConnect M12 alternatives are less expensive per unit, though the labor cost difference narrows quickly when volume is above a few dozen terminations.

From a procurement standpoint, the 6GK1901-0DB20-6AA0 carries Active Product status with EAN 4019169852333 — it is not approaching end-of-life, which matters for long-horizon maintenance and spare parts planning. Lead times align with standard connector order windows, and volume pricing is available. If this matches your system requirements, view current stock and pricing at LeadTime.ca.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

Field Termination Overview: FastConnect Installation in Practice

The 6GK1901-0DB20-6AA0 is designed for field assembly without crimping or soldering. The following overview covers what to verify before and during installation — for full procedures, consult the Siemens installation documentation for the IE FC M12 Plug PRO family.

  • Confirm your cable is 6.5 mm overall diameter with 0.33 mm² (AWG22) conductors before stripping — cables outside these dimensions will not seat correctly in the cut-and-clamp contacts
  • Insert each twisted pair conductor straight into its designated contact slot and push firmly until the conductor bottoms; the integrated cut-and-clamp contact cuts insulation and clamps the conductor in a single motion
  • Position the strain relief boot at the connector base before threading the collar, ensuring the 180-degree axial outlet aligns with your planned cable routing path
  • Tighten the screw joint using a standard M12 connector wrench (0.5 mm pitch) to a maximum of 0.6 N·m — over-torquing beyond this limit risks crushing internal contacts and causing intermittent faults
  • After connection to the SCALANCE X208PRO or ET200 device port, verify the screw joint is fully seated with no gap at the mating face, and check the device's link status indicator to confirm an active network connection

Compatible Siemens Devices and System Expansion

The 6GK1901-0DB20-6AA0 is verified compatible with the following SIMATIC NET and ET 200 devices. Any D-coded PROFINET port on a compliant network device will accept this connector — the list below reflects the primary application targets confirmed in the product documentation:

  • SCALANCE X208PRO — managed Industrial Ethernet switch, primary application for machine-level PROFINET networks
  • ET200 PRO PN — distributed I/O module for remote press stations, conveyor lines, and machine tool networks
  • ET200 eco PN — modular base unit deployments in compact or space-constrained machine installations
  • Any D-coded PROFINET-compliant network port — standard D-coding ensures interoperability across compliant devices from any manufacturer

Note: The connector is not compatible with A-coded or X-coded M12 ports, Gigabit Ethernet infrastructure, or non-PROFINET Industrial Ethernet protocols. Verify device port coding before ordering.

What Engineers Get Wrong When Ordering This Part

The following checklist covers the most common specification and ordering errors associated with the 6GK1901-0DB20-6AA0. Review every point before finalizing your purchase order.

  1. Verify D-coding matches your PROFINET device port (not A-coded or X-coded)
  2. Confirm cable cross-section is 6.5 mm (not thinner or thicker than AWG22)
  3. Check that your network runs at 10 or 100 Mbit/s (not Gigabit or proprietary protocols)
  4. Ensure your fastener tools include M12 x 0.6 N·m torque limit (standard 0.5 mm pitch wrench)
  5. Verify compatibility with SCALANCE X208PRO, ET200 PRO PN, or ET200 eco PN for FastConnect
  6. Confirm operating temperature range -40 to +85°C meets your facility environment

If you have worked through this checklist and confirmed all criteria match your application, view the 6GK1901-0DB20-6AA0 product page at LeadTime.ca to check current stock and request a quote.

Frequently Asked Questions

How many times can I re-terminate the 6GK1901-0DB20-6AA0?

The 6GK1901-0DB20-6AA0 supports 10 reusable assembly cycles per the official Siemens datasheet. Contact wear increases beyond 10 cycles, so connectors used in high-frequency reconfiguration environments should be tracked and replaced at the 10-cycle limit to maintain connection integrity.

Does the 6GK1901-0DB20-6AA0 support PoE power delivery?

Yes. The 6GK1901-0DB20-6AA0 supports both PoE and PoE+ power delivery through the M12 connection. This allows it to supply power to wireless access points and edge sensors connected at the field level, simplifying cabling by eliminating separate power runs.

What exact cable specification does this connector require?

The connector requires an Industrial Ethernet FC TP cable with a 6.5 mm overall cross-section and 0.33 mm² conductors (AWG22 standard). Do not confuse conductor cross-section with overall cable jacket diameter — both dimensions must be confirmed independently from your cable's specification sheet before ordering.

Can the 6GK1901-0DB20-6AA0 be used with non-Siemens PROFINET devices?

Yes. The D-coded M12 plug format is a standard PROFINET connector specification, and the 6GK1901-0DB20-6AA0 will connect to any compliant D-coded PROFINET female port regardless of device manufacturer. Verify that the receiving device port is D-coded — not A-coded or X-coded — before making this substitution.

What is the IP rating difference between IP65 and IP67 on this connector?

IP65 covers protection against low-pressure water jets from any direction, while IP67 covers temporary immersion in water up to defined depth limits. The 6GK1901-0DB20-6AA0 carries both ratings, making it suitable for washdown environments and temporary water exposure on factory floors. It is not rated for continuous submersion or pressurized water applications.

Is the 6GK1901-0DB20-6AA0 suitable for outdoor or railway installations?

The operating temperature range of -40 to +85°C and IP65/67 protection class cover many outdoor industrial environments. However, the product documentation confirms that EN 50155 railway certification does not apply to this connector, so it should not be specified for rail vehicle or trackside applications without further validation.

Why Order from LeadTime.ca

  • LeadTime.ca ships the 6GK1901-0DB20-6AA0 and the broader SIMATIC NET connector family worldwide — no geographic restrictions on sourcing
  • Volume pricing is available for project quantities — contact the team before committing to large orders to confirm bracket pricing
  • Hard-to-find or short-lead-time Siemens catalog numbers are a LeadTime.ca specialty — useful when standard distribution channels show extended wait times
  • Direct technical support channel for pre-order compatibility questions, not just order processing

At-a-Glance Summary

  • Model: Siemens 6GK1901-0DB20-6AA0 — IE FC M12 Plug PRO, 4-pole, D-coded, Industrial Ethernet FastConnect
  • Transfer rate: 10 Mbit/s and 100 Mbit/s only — not compatible with Gigabit Ethernet
  • Protection class: IP65/67 with metal enclosure — rated for washdown and dusty factory floor environments
  • Operating temperature: -40 to +85°C; storage and transport also rated -40 to +85°C
  • Cable requirement: 6.5 mm overall diameter, 0.33 mm² (AWG22) conductors — FastConnect cut-and-clamp, no crimping required
  • Maximum tightening torque: 0.6 N·m on M12 x 0.5 mm pitch screw joint
  • Reusability: 10 assembly cycles per connector
  • PoE and PoE+ support: Yes
  • Certifications: UL, cULus, RoHS, Cat5 structured cabling classification
  • Primary compatible devices: SCALANCE X208PRO, ET200 PRO PN, ET200 eco PN, any D-coded PROFINET port
  • Life cycle status: Active Product — EAN 4019169852333
  • Net weight: 40 g; dimensions: 19 mm W x 19 mm H x 73 mm D