Siemens 6ES7193-6BP20-0BA0 SIMATIC ET 200SP Base Unit

Product Overview

The Siemens 6ES7193-6BP20-0BA0 is a BaseUnit BU15-P16+A10+2B (BU Type A0) for the SIMATIC ET 200SP distributed I/O system. It provides the mechanical and electrical interface for ET 200SP I/O modules, featuring 16 push-in signal terminals plus 10 auxiliary terminals pre-bridged to the left for seamless cross-module signal continuity. The 2B power group configuration provides isolated power groups, making it ideal for systems requiring electrical separation between circuit segments.

Key Specifications

• Product Type: BaseUnit BU15-P16+A10+2B, BU Type A0
• System: SIMATIC ET 200SP Distributed I/O
• Terminals: 16 push-in process terminals + 10 auxiliary terminals (bridged to left)
• Terminal Type: Push-in (IEC 60947-7-1)
• Rated Supply Voltage: 24 V DC
• Auxiliary Power Group: A10 — 10 A maximum
• Power Group Configuration: 2B — isolated groups (not shared potential)
• Max Input Current (L+): 10 A
• Per-Terminal Current: 2 A maximum per process terminal
• Slots: 1 (Type A0 / A1 compatible)
• Dimensions (W x H): 15 mm x 141 mm
• Weight: Approx. 57 g (0.057 kg)
• Wire Gauge (Solid/Flexible): 0.14 mm² to 2.5 mm²
• Operating Temperature: -30 °C to +60 °C (horizontal), -30 °C to +50 °C (vertical)
• Mounting: DIN rail (ET 200SP carrier rail)
• External Protection: External upstream 24 V DC protection device required (no internal breaker)
• EAN: 4025515080862

Features & Benefits

• 10 auxiliary terminals bridged to the left — eliminates manual jumper wiring between modules, reducing commissioning time by 6–10 hours on typical multi-module builds
• 2B isolated power groups — electrically separates power groups, ideal for safety circuits, mixed-potential systems, and applications requiring galvanic isolation between field device segments
• Compact 15 mm width — fits 6–8 modules in a standard enclosure, delivering ~60% panel footprint reduction vs. legacy 40 mm+ screw-terminal base units
• Push-in terminal technology — vibration-resistant, tool-free connections compliant with IEC 60947-7-1; ideal for automotive welding cells and high-vibration environments
• A10 auxiliary capacity — supports analog modules and I/O modules with higher auxiliary current demand

Typical Applications

• Automotive robotic welding cells and assembly stations
• Pharmaceutical batch processing with traceable, pre-bridged configurations
• Food & beverage high-speed packaging lines
• Multi-axis CNC control architectures
• Building management systems (BMS) for HVAC valve and damper control
• Any application requiring isolated power groups between control circuit segments

Installation Guide

1. Verify carrier rail compatibility — ensure ET 200SP standard rail; do not mix with ET 200S hardware.
2. Confirm left-bridged orientation — the AUX terminals are fixed bridged to the left; verify alignment with your system layout diagram before wiring.
3. Mount on de-energized rail — slide horizontally until seated; listen for the audible click.
4. Install external protection — an upstream 24 V DC protection device is mandatory; this BaseUnit has no internal circuit breaker.
5. Wire field devices — use 0.14–2.5 mm² conductors; insert into push-in terminals to the audible click.
6. Tug-test and continuity check — verify every connection before energizing.
7. Seat I/O module — install compatible ET 200SP Type A0/A1 module onto the backplane.

FAQ

Q: What is the difference between 6BP20-0BA0 and 6BP20-0DA0?
A: The 0BA0 (2B) provides isolated power groups, while the 0DA0 (2D) uses shared potential groups. Both have 10 AUX terminals. Choose 2B when you need electrical isolation between circuit segments (e.g., safety circuits); choose 2D for standard 24 V DC common-ground systems.

Q: What is the difference between 6BP20-0BA0 and 6BP00-0BA0?
A: The 6BP20-0BA0 includes 10 auxiliary terminals (A10) bridged to the left; the 6BP00-0BA0 has no auxiliary terminals (A0). The 6BP20 eliminates manual jumper wires in multi-module systems.

Q: Does this BaseUnit have a built-in circuit breaker?
A: No. An external upstream protection device must be installed on the 24 V DC supply line. Operating without it risks catastrophic failure of all connected I/O modules.

Q: Is this compatible with ET 200S carrier rails?
A: No. ET 200SP and ET 200S use different carrier standards. Mixing them causes physical and electrical incompatibility. Verify your rail designation before ordering.

Q: What does "bridged to the left" mean?
A: The 10 auxiliary terminals are internally connected to the AUX rail of the BaseUnit to the left (upstream) side. This direction is fixed and cannot be reconfigured in the field. Verify your panel layout requires left-bridging before ordering.

Selection Tips

• Choose 6BP20-0BA0 when you need both auxiliary terminals AND isolated power groups — this is the only 15 mm Type A0 variant that combines both features.
• If your system uses a common 24 V DC ground reference and does not need isolation, the 6BP20-0DA0 (2D) is functionally equivalent at a lower complexity.
• If you do not need auxiliary terminals at all, save cost with the 6BP00-0BA0 (A0, no AUX).
• Confirm conductor gauge compatibility with your site wiring standard — this unit supports only push-in terminals, not screw or cage-clamp types.
• Verify the EAN 4025515080862 with your distributor to avoid cross-shipment errors.