SICK STE-1204-GZ Field-Wireable M12 Connector for PROFINET Communication
The SICK STE-1204-GZ field-wireable M12 connector is a robust industrial Ethernet connection solution designed to simplify PROFINET wiring in harsh automation environments. This 4-pin, D-coded, straight M12 male connector allows fast on-site cable termination, eliminating delays caused by fixed-length cables or rework. Its durable metal locking system and IP67 protection address common challenges such as vibration, moisture ingress, and unstable network connections. Designed for CAT5 and CAT5e cables, the STE-1204-GZ ensures reliable signal integrity while supporting efficient installation and long-term operational stability in industrial networks.
Built for industrial reliability, the SICK STE-1204-GZ uses an IDC quick-connection mechanism that enables consistent electrical contact without complex wiring steps. This reduces assembly time and minimizes human error during installation or maintenance. The fully shielded design helps maintain stable PROFINET communication in electrically noisy environments, while the die-cast zinc housing withstands mechanical stress on the factory floor. With a wide operating temperature range and secure screw-locking interface, the connector is well suited for sensors, distributed I/O, and networked devices used in manufacturing, material handling, and automated production systems.
Why SICK STE-1204-GZ?
The SICK STE-1204-GZ is chosen when reliability, speed, and flexibility matter at the machine level. It allows engineers to build precise PROFINET connections directly on site, avoiding cable waste and installation delays. Its rugged metal construction, secure M12 locking, and IP67 sealing make it dependable in demanding industrial environments where vibration, moisture, and temperature extremes are part of daily operation.
What problem does it solve?
The STE-1204-GZ solves the challenge of unstable or time-consuming industrial Ethernet wiring. Fixed cables often lead to incorrect lengths, weak connections, or costly downtime during changes. This field-wireable connector enables fast termination, stable shielding, and consistent signal quality, ensuring PROFINET devices communicate reliably even in electrically noisy and mechanically demanding production systems.
Key Features & Specifications – SICK STE-1204-GZ: Part Number 6048261
| Feature | Details | Benefit |
|---|---|---|
| Connector Type | M12 male connector, 4-pin, straight, D-coded | Ensures secure and standardized PROFINET Ethernet connections |
| Signal Type | PROFINET (Industrial Ethernet) | Stable, high-speed data transmission for real-time automation systems |
| Connection Method | IDC quick connection | Fast, tool-efficient wiring with consistent contact quality |
| Locking Mechanism | Quick screw connection | Vibration-resistant fastening for reliable long-term operation |
| Housing / Locking Nut Material | Die-cast zinc | High mechanical strength and durability in harsh industrial conditions |
| Cable Compatibility | CAT5, CAT5e | Supports common industrial Ethernet cabling standards |
| Shielding | Fully shielded | Protects signals from electromagnetic interference |
| Permitted Wire Cross-Section | 0.14 mm² to 0.34 mm² | Flexible compatibility with typical industrial Ethernet conductors |
| Rated Voltage | Up to 60 V | Suitable for standard industrial communication systems |
| Current Rating | 1.75 A | Reliable power handling for networked field devices |
| Ingress Protection | IP67 | Protection against dust and temporary immersion in water |
| Operating Temperature | –40 °C to +85 °C | Reliable performance in extreme indoor and outdoor environments |
| Compliance & Approvals | CE, UKCA, China RoHS | Supports global deployment and regulatory compliance |
| Typical Applications | Sensors, I/O modules, field devices | Ideal for factory automation, material handling, and machine networks |
Commercial Information – SICK STE-1204-GZ (Part Number 6048261)
| Commercial Data | Details |
|---|---|
| Weight | 41 g |
| Country of Origin | Germany |
The Applications
1. High-Reliability Networking in Automated Production Lines
Automated production lines rely on constant data exchange between controllers, sensors, and distributed I/O devices. The STE-1204-GZ is used where precise PROFINET connections must be assembled directly on the machine to avoid delays caused by incorrect cable lengths. Its IDC quick-connection design allows technicians to terminate cables rapidly during commissioning or maintenance. The D-coded M12 interface ensures correct Ethernet wiring, while full shielding helps maintain stable communication near motors, drives, and switching equipment. With IP67 protection and a metal locking system, the connector continues to perform reliably despite vibration, dust, and exposure to industrial contaminants.
2. Continuous Operation in Conveyor and Material Handling Systems
In conveyor-based material handling systems, sensors and control devices are distributed across long distances and exposed to constant movement. The STE-1204-GZ is applied to maintain secure Ethernet links where cable stress and vibration are common challenges. Field-wireable termination allows maintenance teams to quickly replace damaged connectors without shutting down entire sections. The robust metal housing resists mechanical strain, while the secure screw-lock prevents accidental disconnection. Shielded CAT5 and CAT5e compatibility helps preserve signal integrity, ensuring smooth communication between scanners, controllers, and drive systems during nonstop operation.
3. Ethernet Connectivity in Packaging Machinery Environments
Packaging machinery often operates under demanding conditions that include dust, moisture, temperature fluctuations, and frequent cleaning cycles. The STE-1204-GZ is used to provide reliable Ethernet connectivity between sensors, vision systems, and control units in these environments. Its IP67-rated sealing protects internal contacts from water and debris, while the wide temperature tolerance supports consistent performance near heaters or cold processing zones. Field assembly enables clean cable routing in compact machine frames, reducing strain on connectors and improving long-term reliability in fast-moving packaging applications.
4. Precise Cable Termination for Machine Retrofit Projects
When upgrading or retrofitting existing machinery, standard cable lengths rarely fit older layouts. The STE-1204-GZ is commonly selected for retrofit projects because it allows Ethernet cables to be cut and terminated to exact lengths on site. This reduces clutter, avoids sharp bends, and shortens installation time. The IDC connection ensures consistent electrical contact, even when working in confined spaces. With reliable shielding and a standardized M12 D-coded interface, the connector enables legacy machines to achieve stable PROFINET communication without extensive rewiring or downtime.
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