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6ES5188-3UA12 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
Siemens part 6ES5 188-3UA12 is the central controller (S5-155H/S5-135U series) incorporating a power supply unit 955-3LC42. It provides power and backplane support for up to 21 module slots in SIMATIC S5 systems. Located at the core of control architectures, it manages module bus communication and power distribution. Suitable for industrial cabinet installations, it supports applications including legacy automation retrofit, process control, and manufacturing lines requiring S5-series integration.
Best Suited For
- SIMATIC S5-155H/S5-135U control systems
- Integration into cabinet-based module racks
- Supporting up to 21 I/O and function modules
- Retrofit of existing S5 installations
Technical Specifications
I/O & Electrical
Communication & Power
Physical & Environmental
Certifications
Meets EC Low-Voltage Directive 73/23/EEC; safe electrical separation per VDE 0805/EN 60950.