Siemens 6ES7193-4CL20-0AA0 SIMATIC ET 200S TM-E15S24-AT Thermocouple Terminal Module

Overview

SIEMENS SIMATIC ET 200S

6ES7193-4CL20-0AA0 SIMATIC ET 200S TM-E15S24-AT Thermocouple Terminal Module

A 15 mm screw-terminal base with an integrated thermocouple reference junction and a continuous AUX1 bus without external AUX1 terminals.

At a Glance

Brand	Siemens
Model	6ES7193-4CL20-0AA0
Product Type	Thermocouple terminal module
Core Function	Internal reference-junction compensation
Application	ET 200S 2AI TC High Feature modules

Reference junction in the base

Temperature compensation takes place at the thermocouple reference junction in the terminal module.

Four signal terminals

The electronic module assigns terminals 1, 2, 5 and 6.

Dedicated module pairing

Only the matching 2AI TC HF electronic module may be inserted.

Product Overview

6ES7193-4CL20-0AA0 provides the thermocouple connection base and internal reference junction for the ET 200S 2AI TC HF electronic module.

The screw-terminal base carries the backplane and power buses through the station while the AUX1 potential remains continuous without accessible AUX1 terminal points.

Ordering focus: Preserve the AT reference-junction base and 2AI TC HF pairing; inserting another electronic-module type can damage the internal reference junction.

Key Functions

Provide local thermocouple compensation

The integrated reference junction supports temperature compensation directly at the thermocouple connection.

Terminate the assigned input signals

Screw terminals 1, 2, 5 and 6 connect to the electronic module.

Continue station potentials

The base passes the power and AUX1 buses through the terminal-module row.

Official Specifications

Signal-terminal count	4, arranged as 2 × 2
Connection technology	Screw terminals
Signal-terminal positions	1, 2, 5 and 6
Reference-junction construction	Integrated in the terminal base
AUX1 bus arrangement	Continuous, without external AUX1 terminal access
Dimensions (W × H × D)	15 × 132 × 43 mm
Approximate weight	55 g
Bare solid and flexible conductor range	0.14–2.5 mm²
Ferruled flexible conductor range	0.14–1.5 mm²
Wire stripping length	11 mm
Conductors per connection	1; alternatively 2 totaling up to 1.5 mm² in a common ferrule
Terminal screw tightening torque	0.4–0.7 N·m

Official source:Siemens terminal-module manual · Siemens exact terminal-base data sheet · Siemens ET 200S wiring rules

Frequently Asked Questions

Can I insert an ordinary digital module into 6ES7193-4CL20-0AA0?

No, only the 2AI TC HF electronic module may be inserted because a different module can damage the internal reference junction.

Where is thermocouple reference-junction compensation provided when using 6ES7193-4CL20-0AA0?

Compensation is provided by the reference junction integrated in the terminal base.

Which signal terminals are assigned through 6ES7193-4CL20-0AA0?

The electronic module assigns terminals 1, 2, 5 and 6.

Can I feed an external conductor into AUX1 at 6ES7193-4CL20-0AA0?

No, the continuous AUX1 bus has no accessible connection terminals on this base.

Does 6ES7193-4CL20-0AA0 interrupt the AUX1 potential between adjacent terminal modules?

No, the AUX1 bus continues through the base.

Should I use spring-terminal wiring for 6ES7193-4CL20-0AA0?

No, this article is the screw-terminal version of the thermocouple base.

How much rail width is needed for one 6ES7193-4CL20-0AA0?

The terminal base occupies a 15 mm mounting width.

Compatibility & Ordering Notes

Before ordering 6ES7193-4CL20-0AA0: Use the dedicated 2AI TC HF electronic module, retain the integrated reference-junction arrangement and choose another suitable terminal base wherever external AUX1 access is required.

Compatibility Checklist for 6ES7193-4CL20-0AA0

• Do not insert other electronic-module types.
• Wire the four assigned signal positions.
• Preserve continuous AUX1 routing through the station.
• Allow for the 132 mm base height.

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