S20-AI-4-UTH Bosch Rexroth Indramat
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MPN: R911173342
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The Bosch Rexroth Indramat S20-AI-4-UTH is part of the S20 IndraControl Modules series and provides four analog input channels designed for temperature measurement using thermocouple sensors. This module features a narrow housing that measures 126.1 mm in height, 35 mm in width, and 54 mm in depth, and is intended for use with shielded twisted pair cables.
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Product Description:
The S20-AI-4-UTH is an analog input module manufactured by Bosch Rexroth Indramat for the S20 IndraControl Modules series. Intended for installation on an S20 backplane, the unit digitizes temperature signals originating from sensors on the machine floor. Locating signal conditioning close to the process reduces field wiring length and supports the predictable updates required by ovens, molding presses, and climate chambers. Its slice-style architecture allows individual channels to be expanded or serviced without disturbing adjacent modules. This modular arrangement also simplifies the organization of temperature measurement points in automation cabinets with limited available space.
The module provides four differential channels, with each channel dedicated to a single thermocouple circuit. Its conversion electronics are factory calibrated for precise temperature acquisition, reducing the need for external signal scaling in the PLC. The analog input function supports organized variable mapping during controller configuration, allowing each temperature value to be assigned to the appropriate control task. Bosch Rexroth recommends shielded twisted-pair wiring for the field connections to reduce common-mode noise around motors, contactors, and other electrically active equipment. The housing occupies only 35 mm of DIN-rail width, conserving cabinet space when an application requires several temperature sensing modules.
The housing uses a narrow format with an installation depth of 54 mm and a total height of 126.1 mm from the rail base to the latch. This slim profile aligns with adjacent digital and analog slices while preserving space for airflow and field wiring. Sensor excitation is supplied through the UA line, which distributes the required auxiliary power within the S20 station. User conductors terminate on one terminal field, keeping all channel wiring grouped at a single connection point. The removable plug uses the long connector style, allowing the field conductors to remain organized when the module is disconnected from the station. The module uses housing type 3, and its dimensions support installation within the established mechanical envelope of an S20 assembly.
