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6ES5432-4UA12

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Siemens 6ES5432-4UA12 is a SIMATIC S5 digital input module with 32 floating 24 VDC inputs for S5 control systems.
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Technical specifications for 6ES5432-4UA12

  • Manufacturer:
    Siemens
  • Part Number:
    6ES5432-4UA12
  • Product Family:
    Siemens Simatic S5
  • Product Type:
    Digital Input Module
  • Stock:
    1
  • Rated input voltage:
    24 V DC
  • Number of inputs:
    32
  • Isolation:
    Yes, 4 groups of 8 inputs
  • Logic 0 input level:
    -33 to 5 V
  • Logic 1 input level:
    13 to 33 V
  • Rated input current:
    8.5 mA
  • Input frequency:
    100 Hz / 300 Hz / 1 kHz max.
  • Input delay:
    3 ms / 1 ms / 0.3 ms typical
  • Input resistance:
    2.8 kohm typical
  • Coincidence factor:
    100%
  • Max line length at 3 ms:
    600 m unshielded
  • Max line length at 1 ms:
    200 m unshielded
  • Max line length at 0.3 ms:
    50 m unshielded
  • Digital section supply:
    5 V, 130 mA typical
  • 2-wire BERO supply:
    22 to 33 V
  • Power dissipation:
    7.5 W
  • Enable input voltage:
    24 V DC
  • Enable input current:
    5 mA
  • Enable line length:
    200 m max.
  • VDE 0160 test voltage:
    500 V AC between groups and group-ground
  • Weight:
    1.105 lbs (0.501 kg)
  • Estimated shipping dimensions:
    26.6 x 21.2 x 3.3 cm
  • Tariff Code:
    85389091
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Compatibility Installation Safety & Compliance

Features:

  • 32 floating digital inputs accept grouped 24 VDC field signals.
  • The compact 432 input function fits SIMATIC S5 rack assemblies.
  • Field wiring can be arranged with shielded cable and filtered load supply.
The current configuration is a compact SIMATIC S5 digital input assembly with 32 floating channels for 24 VDC field contacts.

It captures discrete field states for controller logic in legacy S5 control cabinets and supports grouped status monitoring at the rack interface.

Check the rack position, signal grouping, front wiring and supply filtering before installation so the module matches the existing S5 assembly.

Availability depends on Siemens lifecycle status and Apter Power sourcing confirmation.
Product resources for Siemens 6ES5432-4UA12:
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Discrete 24 VDC status acquisition from field contacts in SIMATIC S5 control cabinets.
  • Grouped input monitoring in S5-135U and S5-155U rack assemblies.
  • Legacy S5 replacement projects that retain floating digital input wiring.
  • The 432 input function is intended for compact SIMATIC S5 rack assemblies with grouped field returns.
  • Four isolated input groups let separate field circuits remain distinct at the rack interface.
  • Two-wire BERO devices can use the module supply arrangement without changing the input role.
  • Set the front selector for the required input delay before commissioning the card.
  • Keep the S5 front-connector wiring aligned with the selected rack position and channel grouping.
  • Use the documented signal-cable and 24 V load-supply practices when extending field wiring.
  • The input groups are tested for the required VDE 0160 isolation between groups and earth.
  • The 24 V input interface accepts the documented logic window without requiring a separate signal conditioner.
  • Cover unused rack positions so the installed assembly retains its specified IP20 protection.
Description
Siemens 6ES5432-4UA12 is a SIMATIC S5 432-4 digital input module for compact S5 control cabinets. It acquires grouped 24 V DC field signals through floating input channels and supports discrete status processing in legacy automation racks.

The module is used with documented S5-135U, S5-155U and related S5 controller architectures where reliable field-state acquisition is required. Its compact format suits established S5 assemblies and migration planning based on the original I/O arrangement.

Before replacement, verify the rack location, input voltage, signal grouping and front wiring against the complete order code. Siemens documentation also calls for shielded signal cabling and filtering in the 24 V DC load supply for the applicable installation.
Alternative Names
6ES5432-4UA12 6ES5 432-4UA12 6ES54324UA12 SIMATIC S5 432 Siemens 432 Digital Input Module 432-4 Digital Input 6ES5 432 4UA12 S5 32DI 24VDC Module
Technical notes
Before installing Siemens 6ES5432-4UA12, verify the S5 rack position, shielded signal cable and required load-supply filtering for the selected installation.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What input function does Siemens 6ES5432-4UA12 provide?
It is a SIMATIC S5 432 digital input module for floating 24 VDC field signals.
Which S5 controllers are associated with Siemens 6ES5432-4UA12?
The official S5 documentation associates the module with S5-135U and S5-155U installations and related S5 systems.
What cable precaution applies to Siemens 6ES5432-4UA12?
Siemens documentation specifies a shielded signal cable as an additional installation measure.
What supply precaution applies to Siemens 6ES5432-4UA12?
The S5 documentation identifies a filter requirement in the module's 24 V DC load supply.
Is Siemens 6ES5432-4UA12 still in active production?
Siemens lists the item under End Product Lifecycle; availability therefore depends on remaining stock and service sourcing.
What should be checked before replacing Siemens 6ES5432-4UA12?
Confirm the complete order number, input voltage range, rack position, signal grouping and required S5 documentation before substitution.