6SL3210-1PE13-2UL1 SIEMENS

A SIEMENS BaseUnit (Basis unit) is a modular terminal housing component used within the SIMATIC ET 200SP distributed I/O system. It serves as the physical and electrical base onto which electronic I/O modules are mounted. The BaseUnit holds the wiring terminals for external sensors and actuators, establishes the internal backplane bus connection, and routes the supply voltage across the system. It enables a permanent wiring design, allowing electronic modules to be hot-swapped without disconnecting field cables.

Product Specifications

• Rated Supply Voltage: 24 V DC (standard), with support for up to 120 V DC / 230 V AC depending on the specific model type (e.g., Type A0, A1, B0, B1).

• Maximum Current Carrying Capacity: Up to 10 A for the self-assembling internal AUX/power buses; up to 2 A per individual process terminal.

• Terminal Technology: Push-in terminals for toolless conductor connection, supporting solid and stranded wires with ferrules from 0.14 mm² to 1.5 mm² (AWG 26 to AWG 16).

• Potential Group Management: Available as light-colored BaseUnits (opens a new potential group and feeds fresh 24 V DC power) or dark-colored BaseUnits (forwards the power supply from the preceding unit).

• Terminal AUX Options: Configuration variants available with direct AUX terminals for additional potential distribution, or without AUX terminals for higher density.

• Integrated Shielding Connection: Direct integrated contact point for low-impedance connection of shield elements for analog and high-speed modules.

• Operating Temperature Range: -30°C to +60°C for standard operation (extended temperature versions available under the SIPLUS ET 200SP line).

• Ingress Protection Rating: IP20 protection class for mounting inside control cabinets.

Key Product Advantages

• Permanent Wiring System: Field wiring connects directly to the BaseUnit, allowing electronic modules to be installed, removed, or replaced without touching field connections or interrupting adjacent modules.

• Toolless Push-in Terminals: Enables fast and reliable conductor connections, reducing wiring assembly time and maintaining high vibration resistance without needing periodic screw retightening.

• Automatic Mechanical Coding: The BaseUnit receives a coding element when an electronic module is first inserted, preventing the insertion of an incorrect module type during subsequent maintenance.

• Compact Footprint: High channel density reduces control panel space requirements while maintaining clear pin assignment labeling and accessible probe testing points.

• Color-Coded Identification: Distinct module coloring (light vs. dark base) clearly indicates power distribution groups, simplifying cabinet layout, maintenance, and visual troubleshooting.

Important Operational Considerations

• Power Infeed Selection: Ensure the total load current on a single potential group does not exceed 10 A; open a new potential group using a light-colored BaseUnit whenever power limits are reached.

• Proper Mechanical Latching: Align the electronic module correctly before pressing it into the BaseUnit to avoid bending pin connectors or damaging the coding mechanism.

• Voltage Compatibility Matching: Verify that the BaseUnit variant (such as Type A0 or Type B0) matches the mechanical and electrical specifications of the intended I/O module.

• Shielding and Grounding: Always connect shield connections directly to the designated shield contact on the BaseUnit to preserve EMC immunity for sensitive analog or communication signals.

• Cabinet Environment: Because the BaseUnit provides an IP20 rating, it must be installed inside an appropriately rated enclosure to shield against dust, conductive contaminants, and moisture.

Industrial Applications

• Factory Automation: Used across automotive production lines, conveyor systems, and assembly machinery to manage high-density sensor and actuator connections.

• Process Industry Infrastructure: Applied in chemical, pharmaceutical, and water treatment facilities where continuous operation and hot-swappable module maintenance are critical.

• Packaging and Material Handling: Integrated into high-speed packaging machinery where vibration resistance and compact panel space are essential.

• OEM Machine Building: Utilized by equipment builders to deliver standardized, easy-to-service control panels with reduced wiring assembly time.