Pravah Electricals & Electronics LLP

• It’s a digital input module for the Siemens SIMATIC S7-400 PLC system.Module name: SM 421 (32 DI, optically isolated).It has 32 digital inputs, all at 24 V DC.Input channels are optically isolated, providing good protection / noise immunity.

  Key Specifications

  Here are its key technical specs:

  Parameter	Specification / Detail
  Number of Inputs	32 digital inputs.
  Rated Input Voltage	24 V DC.
  Current Consumption	From backplane (5 V): max ~ 20 mA. Per “1” input: typ ~7 mA, “0” input quiescent ~1.3 mA.
  Input Delay / Filter Time	For “0 → 1”: min 1.2 ms, max ~4.8 ms (for standard inputs) per datasheet.
  Isolation	Galvanic isolation: inputs are isolated from backplane.  Tested with 500 V DC.
  Power Loss	Max 6 W.
  Wiring / Cable Length	Shielded cable: up to 1000 m. Unshielded: up to 600 m.
  Physical Dimensions	25 mm (width) × 290 mm (height) × 210 mm (depth).
  Weight	~500 g.
  Operating Temperature	(From S7-400 module data): typical industrial range.
  Status / Diagnostics	Status LEDs indicate input states and diagnostics.
  Isolation Grouping	All 32 inputs are isolated as a single group.

  Features & Applications

  • Signal Acquisition: Can connect standard switches or 2/3/4-wire proximity sensors. 

  • Noise Immunity: Optical isolation makes it robust in electrically noisy environments.

  • High-density Inputs: 32 channels in a single module helps save rack space.

  • Long Cable Runs: Supports long input cable runs (shielded up to 1000 m) — useful for distributed sensor networks.

  • Diagnostic Feedback: LEDs provide quick visual status of input state and errors.

  • S7-400 Compatibility: Integrates directly into S7-400 racks and works with S7-400 CPUs.

  Lifecycle / Availability

  • According to Siemens Industry Mall, the part is active, but marked for phase-out from 01.10.2025. 

  • Because of phase-out, planning for replacements / spare stock might be prudent.

The SIEMENS 6SL3040-1NB00-0AA0 is a Drive Control Extension Module designed for use in Siemens SINAMICS drive systems. This module is used to extend the control functionality of a drive, enabling enhanced features such as communication, feedback, and integration into broader automation systems. It is typically used in complex applications that require advanced control, monitoring, and protection of motors and drive systems.

• Model: SIEMENS 6SL3040-1NB00-0AA0

• Type: Drive Control Extension Module

• Series: SINAMICS

• Application: Expands control capabilities for SINAMICS drive systems

• Compatibility: Compatible with SINAMICS S120, G120, and other Siemens drive systems

The SIEMENS SITOR Fuse Link 3NE1436-2 and 3NE1438-2 are high-performance fuse links designed to provide overcurrent protection for electrical circuits and equipment. These fuse links are part of SIEMENS' SITOR series, which is well-known for its reliability and high breaking capacity. They are typically used in industrial and commercial electrical systems to protect against short circuits and overloads, ensuring the safe and efficient operation of electrical equipment.

• Models: SIEMENS 3NE1436-2 and 3NE1438-2

• Type: SITOR Fuse Link

• Series: SITOR (for high-voltage and low-voltage fuse protection)

• Application: Overcurrent protection for electrical circuits, transformers, motors, and other equipment

The product code 6ES7151-3AA23-0AB0 corresponds to a Siemens PLC (Programmable Logic Controller) module. Specifically, it is a S7-1500 series digital input/output module.

Here are the main details you can expect:

• Part Number: 6ES7151-3AA23-0AB0

• Module Type: Digital Input/Output Module

• Series: Siemens S7-1500

• Application: It is used to interface with digital signals in industrial automation systems, connecting sensors, actuators, and other devices to the PLC system.

• General Specifications:

  • Typically, modules in the Siemens S7-1500 series support high-performance processing, modularity, and advanced diagnostics.

The part number 6ES7155-6AU01-0CN0 refers to a specific component from Siemens, typically in their automation and control systems, specifically their SIMATIC S7-1500 series. It is most likely a communication module or interface module used in industrial automation systems.

Here’s a breakdown of the part number:

• 6ES7: Indicates that this is part of Siemens' S7 series.

• 155: Indicates the SIMATIC S7-1500 controller series.

• 6AU01: This typically indicates a specific module type.

• 0CN0: This can denote the version, type, or a specific configuration of the module.

• Voltage: 380–480 V AC

• Current: 310 A

• Frequency: 50/60 Hz

• Type: Built-in unit, IP00

• Weight: Approximately 45 kg

• Country of Origin: AustriaAs of October 1, 2020, this product has been discontinued. Siemens recommends migrating to the SINAMICS series for new installations and upgrades. However, repairs, partial upgrades, and replacements are still possible through Siemens service channels.

• This is a central processing unit (CPU) for industrial automation.
• The product has reached its end-of-life, but can still be serviced or repaired.
• It is designed for use with Siemens industrial control systems. 

Cpu 1217C, DC/DC/DC, 14DI/10DQ/2AI/2AQ 6ES7217‑1AG40‑0XB0 — Siemens SIMATIC S7-1200 CPU 1217C (Part No. 6ES7217-1AG40-0XB0)

This is a compact programmable logic controller (PLC) central processing unit (CPU) from the Siemens SIMATIC S7-1200 series — a powerful controller used for industrial automation and control applications.

• Model: SIMATIC S7-1200, CPU 1217C, DC/DC/DC configuration.

• Power Supply: 20.4 – 28.8 V DC (DC/DC/DC — meaning DC power input and DC logic and I/O).

• Communication: 2 onboard PROFINET Ethernet ports for network connectivity.

• Onboard Inputs/Outputs:
  • Digital Inputs: 10 at 24 V DC + 4 differential RS-422/485 inputs.
  • Digital Outputs: 6 at 24 V DC (≈0.5 A each) + 4 differential RS-422/485 outputs.
  • Analog Inputs: 2 (0 – 10 V DC).
  • Analog Outputs: 2 (0 – 20 mA).

• Memory: Around 150 – 250 KB program/data memory (enough for medium-size control logic).

• Mounting: Standard DIN-rail / rack mounting within control enclosures.

• Protection Rating: IP20 (basic industrial protection).

This CPU is the “brain” of an automation system. You program it (typically with TIA Portal software) to:

• Read sensors (digital/analog),

• Execute logic and control algorithms,

• Drive actuators and indicators,

• Communicate with other devices via PROFINET.

It’s suitable for many industries and applications — from machine control and material handling to process

The 6ES7231-7PB22-0XA8 is a Siemens SIMATIC S7-1200 analog input module used with the S7-1200 PLC series.

• Type: Analog Input Module

• Series: SIMATIC S7-1200

• Inputs: 2 channels

• Input type: RTD temperature sensors (Resistance Temperature Detectors)

• Supported sensors:

  • Pt100

  • Pt200

  • Pt500

  • Pt1000

  • Ni100 / Ni1000 (depending on configuration)

• Resolution: Up to 16-bit temperature measurement

• Mounting: Snap-on to S7-1200 PLC rail

• Configuration: Through Siemens TIA Portal

This module is used to measure temperature from RTD sensors in industrial automation systems such as:

• Boilers and furnaces

• Chemical processes

• Food processing

• HVAC systems

• Water treatment plants

Example configuration:

• PLC: Siemens SIMATIC S7‑1200 PLC

• Expansion module: SM 1231 AI RTD (6ES7231-7PB22-0XA8)

• Sensors: Pt100 temperature probes

✔ High-accuracy temperature measurement
✔ Supports 2-wire, 3-wire, and 4-wire RTD connections
✔ Built-in diagnostics
✔ Industrial noise immunity

GB offers convenient user interface with various network diagnosis & monitoring functions and back-up function

• - Integrated programming environment
  • · Enhanced user interface with XG5000/XG-PD
  • · Various monitoring functions.
  • · Network diagnosis and monitoring
• - Optimum communication environment
  • · Powerful communications: Built-in RS-232C / 485, 2 Expansions for communication
  • · Network configuration via Ethernet and Cnet I/F

The Siemens Micro Master 420 (6SE6420-2UD13-7AA1) is a variable frequency drive (VFD) designed for controlling motors in various applications. Here are some key features and specifications:

• Power Range: Typically available for different power ratings, suitable for small to medium-sized motors.
• Control Modes: Supports V/f control, vector control, and closed-loop control for precise motor management.
• Communication Interfaces: Compatible with various communication protocols (e.g., PROFIBUS, CANopen) for integration into automation systems.
• User-Friendly Interface: Comes with a user-friendly keypad for easy programming and monitoring.

• Pump control
• Conveyor systems
• Fans and blowers
• General motor control in industrial applications

• Ensure proper ventilation and cooling during installation.
• Regularly check connections and perform software updates as needed.

The SIEMENS 3RG6012-3AF00 is an Ultrasonic Sensor (Sonar) designed for a wide range of industrial automation applications. It utilizes ultrasonic technology to detect objects and measure distances accurately. The sensor is commonly used in positioning, object detection, and level measurement tasks in various industries, such as material handling, robotics, automated manufacturing, and warehouse automation.

• Model: SIEMENS 3RG6012-3AF00

• Type: Ultrasonic Sensor (Sonar)

• Application: Object detection, distance measurement, level monitoring, and positioning

• Technology: Ultrasonic waves for non-contact measurement and detection

The SIEMENS 6ES7972-0BA52-0XA0 is a Profibus connector designed for industrial automation and communication systems. This connector is specifically intended for use with Profibus DP (Decentralized Peripherals) networks, a widely used communication protocol in the field of industrial control and automation. The Profibus connector enables devices such as PLCs (Programmable Logic Controllers), remote I/O units, drives, and other equipment to connect and communicate within a Profibus network.

• Model: Siemens 6ES7972-0BA52-0XA0

• Type: Profibus Connector

• Application: Industrial automation systems, Profibus networks

• Protocol Supported: Profibus DP (Decentralized Peripherals)

The SIMATIC HMI KTP600 Basic mono PN (Basic Panel), with part number 6AV6647-0AB11-3AX0, is a Human-Machine Interface (HMI) from Siemens. Here are some key details about this product:

• Model: SIMATIC HMI KTP600 Basic mono PN

• Type: Basic Panel (Mono)

• Screen Size: Typically around 6 inches (diagonal)

• Interface: Panel with touch screen (monochrome display)

• Functionality: Designed for simple and cost-effective human-machine interface solutions in industrial automation systems. It can be used to display information, monitor processes, and allow user input in the form of touch controls.

• Connectivity: This model supports Profinet (PN) communication, meaning it's built for Ethernet-based networks for seamless integration into automation systems.

These types of panels are often used in factory automation, machinery control, and process visualization.

The 6EP4134-0GB00-0AY0 is a battery module designed for the Siemens SITOP UPS1100 series. It provides a reliable uninterruptible power supply (UPS) solution, ensuring continuous operation of connected devices during power outages. This module is equipped with maintenance-free sealed lead-acid batteries, offering a 24 V DC output with a 7 Ah capacity.Industry Mall+2Industry Mall+2Industry Mall+2

• Type: Memory card (Flash EPROM)

• Series: SIMATIC S7-400 (PLC automation system)

• Memory Capacity: 4 MB (Flash-EPROM)

• Operating Voltage: 5 V

• Form Factor: Long design to fit specific memory slot of the S7-400

• Manufactured by: Siemens (Germany)This memory card is used to store and retain program data, user program logic and configuration information in a Siemens S7-400 programmable logic controller (PLC). The Flash EPROM ensures the data is retained even when power is turned off, making it suitable for industrial automation tasks where stable and non-volatile memory is critical.

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• Siemens 6ES7 314‑1AF11‑0AB0 is a CPU module from the Siemens SIMATIC S7-300 programmable logic controller (PLC) series. It’s used as the central processing unit in industrial automation and control systems.

• CPU Type: SIMATIC S7-300, CPU 314 model.

• Communication Interface: Integrated MPI (Multi Point Interface) for connecting with programming devices and other S7 modules.

• Power Supply: Built-in 24 V DC supply.

• Memory: 64 KB work memory (program/data memory).

• Memory Card: Requires a Micro Memory Card (MMC) for program storage and backup.

• This module was officially discontinued by Siemens on October 1, 2013, and has since been replaced by newer variants (e.g., 6ES7314-1AG14-0AB0).

• Although discontinued, this CPU is still widely used in legacy automation systems and can often be found refurbished or used. 

The code 6ED1052-1FB08-0BA2 corresponds to a Siemens LOGO! 8 12/24RCE base module.

• Series: LOGO! 8

• Model: 12/24RCE

• Supply Voltage: 12/24 V DC

• Inputs: 8 digital inputs (12/24 V DC)

• Outputs: 4 relay outputs

• Ethernet: Yes (integrated)

• Display: Built-in display with keypad

• Expandable: Yes (with LOGO! expansion modules)

It’s commonly used for:

• Small automation projects

• Building control systems

• Machine control

• Lighting control

If you’d like, I can also provide wiring diagrams, programming info (LOGO! Soft Comfort), or expansion module compatibility.

• Series: SIMATIC S7-300
• CPU Type: 319-3 PN/DP
• Work Memory: 2 MB
• Supply Voltage: 24 V DC
• Interfaces:
  • MPI / PROFIBUS DP (12 Mbit/s)
  • PROFIBUS DP (Master/Slave)
  • PROFINET (Ethernet with 2-port switch)
• Memory Card: Micro Memory Card required
• I/O Capacity: Up to ~2048 I/O points

• Very fast processing for complex logic & motion control
• Supports multi-network communication (MPI, DP, PROFINET)
• Suitable for large automation systems
• Modular integration with S7-300 racks
• Reliable for industries like automotive, manufacturing, energy

The AI Module (6ES7134-4GB11-0AB0) is an analog input module from Siemens, designed for use with the SIMATIC ET 200S distributed I/O system. This module is part of the SIMATIC automation range, and it offers precise and reliable analog input processing, making it suitable for a variety of industrial applications requiring temperature, pressure, flow, or level monitoring. With its compact design and high level of functionality, it allows easy integration into control systems for real-time data acquisition.

1. Analog Input Channels:

   • Provides two analog input channels that support a variety of analog signal types, including voltage and current inputs, offering flexible input configuration for different applications.

2. High-Resolution Input:

   • Offers 16-bit resolution for accurate signal processing, ensuring precise measurement data for high-performance control and monitoring.

The SIEMENS 6ES7954-8LF03-0AA0 is a SIMATIC S7 Memory Card, specifically designed for use with Siemens S7 PLC systems, such as the S7-1200 and S7-1500 series. This memory card plays a crucial role in data storage, backup, and system configuration, making it essential for ensuring that the PLC system operates reliably and can recover from power loss or failures.

• Model: SIEMENS 6ES7954-8LF03-0AA0

• Type: SIMATIC S7 Memory Card

• Series: Siemens S7-1200, S7-1500

• Application: Data storage, system backup, configuration storage for PLC systems

• Compatibility: Compatible with Siemens S7-1200 and S7-1500 PLCs

The part number 6SL3040-0MA00-0AA1 corresponds to a Siemens SINAMICS V20 series frequency converter. This type of drive is designed for various applications, including pump, fan, and conveyor systems.

Key features may include:

• Compact design: Suitable for space-constrained environments.
• Easy integration: Compatibility with a range of control systems.
• User-friendly interface: Simplified setup and operation.
• Energy efficiency: Designed to optimize energy usage in industrial applications.

The Siemens 6ES7 136‑6BA00‑0CA0 is an electronics module from the SIMATIC DP family, designed for integration into the ET 200SP distributed I/O system. It functions as a failsafe digital input (F‑DI) module, offering the following key specifications:

• Inputs: 8 F‑DI (failsafe digital inputs) supporting 24 V DC high feature (HF) operation afety: Meets Performance Level e (PL e) as per ISO 13849‑1 and Safety Integrity Level 3 (SIL3) according to IEC 61508Dimensions: Compact with a width of 15 mm, height ~73 mm, and depth ~58 mmOperating Conditions:

  • Horizontal mounting: 0 °C to 60 °C

  • Vertical mounting: 0 °C to 50 °C

  • Altitude support up to 4,000 m above sea levelDiagnostic Features: Equipped with LEDs for run, error, power (PWR), and channel/module diagnostics

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• Product Name & Description: It's the SIMATIC ET 200SP BusAdapter (BusAdapter BA 2×FC) featuring two FastConnect (FC) connections specifically for PROFINET communication.Family & Lifecycle: Falls under Siemens’ BusAdapters product family and is currently classified as an active product (Product Lifecycle: PM300).Physical Specifications: Compact and lightweight

  • Approximate dimensions: ~20 mm × 59 mm × 69.5 mm

  • Weight: ~53–63 g (roughly 0.06 kg

SIMATIC ET 200SP Interface Module (IM 155-6PN Standard)

• Purpose: Connects ET 200SP I/O modules to a PROFINET network.

• Supports: Up to 32 I/O modules + 16 ET 200AL modules.

• Features:

  • PROFINET with 2-port switch

  • Diagnostics support

  • Hot-swapping of I/O modules

  • 24 V DC supply, ~450 mA current

• Size: 50 × 117 × 74 mm

• Status: Discontinued (phase-out)

• Replacement: 6ES7155-6AU02-0BN0