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6ES5432-7LA11

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The Siemens 6ES5432-7LA11 is a 16-channel digital input module designed for SIMATIC S5-115U and S5-115H programmable logic controller systems.
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Technical specifications for 6ES5432-7LA11

  • Manufacturer:
    Siemens
  • Part Number:
    6ES5432-7LA11
  • Product Family:
    Siemens Simatic S5
  • Product Type:
    Digital Input Module
  • Stock:
    1
  • Product Type:
    Digital Input Module
  • Number of Inputs:
    16 inputs
  • Galvanic Isolation:
    optocoupler, isolated in groups of 4
  • Rated Input Voltage:
    48/60 V UC
  • AC Frequency Range:
    47 to 63 Hz
  • Input Voltage for "0" Signal:
    0 to 10 V
  • Input Voltage for "1" Signal:
    30 to 72 V
  • Input Current for "1" Signal:
    9/10 mA typical
  • Input Delay (0 to 1):
    2 to 13 ms
  • Input Delay (1 to 0):
    10 to 25 ms
  • Cable Length Unshielded Max:
    600 m (1968 ft)
  • Cable Length Shielded Max:
    1000 m (3280 ft)
  • Insulation Voltage Rating:
    60 V AC (in acc. with VDE 0160), tested at 500 V AC
  • Internal Current Consumption (5V DC:
    Max. 5 mA
  • Power Loss:
    10.0 W typical
  • Front Connector:
    24-pin
  • Weight:
    0.7 kg
  • Tariff Code:
    8537101190
  • 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 Configuration & Programming Safety & Compliance Firmware & Updates

Features:

  • 16 digital input channels operating at 48/60 V UC rated voltage with optical galvanic isolation in 4 distinct groups.
  • Wide logic state signal evaluation range from 0 to 10 V for signal "0" and 30 to 72 V for signal "1".
  • Fast response performance with input delay times of 2 to 13 ms (0 to 1) and 10 to 25 ms (1 to 0).
The Siemens 6ES5432-7LA11 is a factory-configured digital input module designed specifically for installation in SIMATIC S5-115U and S5-115H rack assemblies.

This module processes external binary process signals from field sensors and switches, converting them into internal logic voltage levels through optocouplers for reliable signal transmission across long distances.

During system integration, field wiring must be routed through a dedicated 24-pin front connector, maintaining efficient low-power backplane operation within the system rack.

The Siemens 6ES5432-7LA11 is available in new surplus and fully tested refurbished condition, backed by standard warranty coverage not provided by the original manufacturer (OEM).
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.
  • Digital signal acquisition from field switches, pushbuttons, and sensors in SIMATIC S5-115U automation racks.
  • Industrial process monitoring requiring high electrical noise immunity over long field cable distances.
  • Fault-tolerant PLC control systems using SIMATIC S5-115H redundant configurations.
  • Requires no complex module firmware setup or software parameterization for hardware deployment.
  • Input address mapping is assigned directly within the central controller user program.
  • Operates via standard hardware jumper configurations on the underlying rack backplane.
  • Meets VDE 0160 standards for electrical clearance and insulation voltage ratings in control systems.
  • Tested at 500 V AC to verify robust galvanic separation between field circuits and system ground.
  • Complies with industrial safety regulations for low-voltage signal conditioning and isolation.
  • Pure hardware-based input module requiring no firmware updates or microcode maintenance over its operating lifecycle.
  • Input addresses and operational behavior are defined entirely within the SIMATIC S5 central processing unit program.
  • Ensures long-term interchangeability across existing S5-115U subracks without system software modifications.
Description
Siemens 6ES5432-7LA11 is a high-reliability digital input module engineered for the SIMATIC S5-115U and S5-115H programmable controller automation series. The module converts external binary process signals from field devices into internal logic voltage levels required by the central processing unit. Equipped with 16 discrete inputs organized into 4 galvanically isolated groups, it provides continuous electrical separation to prevent field interference from damaging internal PLC bus circuits.

Designed to handle flexible signal requirements, the Siemens 6ES5432-7LA11 supports a rated input voltage of 48/60 V UC with an AC frequency tolerance of 47 to 63 Hz. Optical isolation through onboard optocouplers protects each channel group while maintaining reliable signal conversion over long field wiring distances up to 1000 meters. The front panel features green LED indicators for rapid visual diagnostic verification of individual channel logic states during machine operation.

The Siemens 6ES5432-7LA11 integrates efficiently into standard S5-115U subracks using a single slot and interfaces field wiring via a removable 24-pin front connector. Its low internal 5V power consumption of just 5 mA minimizes overall rack thermal load, making it an ideal digital interface solution for industrial process automation, power distribution control, and factory machine monitoring environments.
Alternative Names
6ES5431-7LA11 6ES54327LA11 6ES5 432-7LA11 6ES5-432-7LA11 6ES5431-7LA1 SIMATIC S5 6ES5432-7LA11 Siemens 432-7 Digital Input Module
Technical notes
The Siemens 6ES5432-7LA11 requires a 24-pin front connector for field signal connections and features front-panel green LEDs for individual channel status indication.
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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.
Does the Siemens 6ES5432-7LA11 provide electrical isolation between channels?
Yes, the Siemens 6ES5432-7LA11 features optocoupler galvanic isolation grouped into 4 channels per group.
What front connector is required to wire the Siemens 6ES5432-7LA11 module?
The Siemens 6ES5432-7LA11 requires a 24-pin front connector (screw terminal order code: 6ES5 490-7LB11).
How do operators visually check input status on the Siemens 6ES5432-7LA11?
Green status LEDs located on the front panel display real-time signal activity for each input channe
Which PLC systems are natively compatible with the Siemens 6ES5432-7LA11 module?
The Siemens 6ES5432-7LA11 is natively designed for SIMATIC S5-115U and S5-115H subracks.
Can the Siemens 6ES5432-7LA11 be used in S5-135U or S5-155U systems?
Yes, digital input modules from this family can be utilized in S5-135U/155U systems when installed with an appropriate adapter casing.
How can I request a quote or check availability for the Siemens 6ES5432-7LA11?
You can submit a formal Request for Quotation (RFQ) directly to your industrial automation sales agent with your required quantity and delivery details.