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Siemens

Genuine Siemens automation parts available to quote — SIMATIC PLCs (S7-1200/1500/300/400), HMI panels, Sinamics & Micromaster VFDs, SITOP power supplies, Sinumerik CNC, SIRIUS contactors, 3SU command devices, Scalance networking. Fast worldwide shipping.

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1-Year Warranty

Browse Siemens products

Jump straight into a product family or browse the full catalog.

3SU Command & Signaling Devices

3SU1 command and signaling devices: pushbuttons, selector switches, illuminated pilot lights and stack lights.

Cables & Connectors

Buy Cables & Connectors parts. New, surplus and refurbished stock with warranty and worldwide shipping. Request a quote from Palm Parts Solution.

DC Drives

Siemens DC drives: SIMOREG DC Master 6RA70 and Sinamics DC Master 6RA80. Legacy support and replacement units.

Industrial Networking

Scalance industrial Ethernet/Profinet switches and CP communication processors. Genuine Siemens 6GK modules.

Low Voltage Switchgear

Buy Low Voltage Switchgear parts. New, surplus and refurbished stock with warranty and worldwide shipping. Request a quote from Palm Parts Solution.

Power Monitoring

Buy Power Monitoring parts. New, surplus and refurbished stock with warranty and worldwide shipping. Request a quote from Palm Parts Solution.

Safety Technology

Buy Safety Technology parts. New, surplus and refurbished stock with warranty and worldwide shipping. Request a quote from Palm Parts Solution.

Servo Drives & Motion Control

Sinamics S120 and Simodrive 611 servo drives, motor modules, line modules and control units.

Siemens — Miscellaneous Parts

Buy Other Siemens Products parts. New, surplus and refurbished stock with warranty and worldwide shipping. Request a quote from Palm Parts Solution.

Siemens Components & Accessories
Siemens Fuses

Siemens industrial fuses: 3NW cylindrical, 3NA NH HRC, 3NE semiconductor and 3NC.

Siemens PLCs

Buy Siemens SIMATIC PLCs: S7-1200, S7-1500, S7-300, S7-400 and LOGO! logic modules. New, surplus and refurbished. Fast shipping and tech support.

SIMATIC HMI Panels

SIMATIC HMI Comfort, Basic and Mobile panels available to quote. Genuine 6AV2 panels with warranty.

Sinumerik CNC Systems

Sinumerik CNC controls, NCUs, PCUs and operator panels. 828D, 840D and 840Dsl available to quote.

SIRIUS Contactors

SIRIUS 3RT power contactors and 3RH auxiliary contactors. Full size range with warranty.

Sirius Motor Protection & Starters

Buy Sirius Motor Protection & Starters parts. New, surplus and refurbished stock with warranty and worldwide shipping. Request a quote from Palm Parts Solution.

SITOP Power Supplies

SITOP 24V DC power supplies and LOGO!Power. Reliable single- and three-phase units for control panels.

Variable Frequency Drives

Siemens variable frequency drives: Sinamics G/S series, Micromaster and legacy Simovert MasterDrives. New, surplus and tested.

Overview

Siemens is the world leader in industrial automation. Palm Parts Solution stocks new, surplus and refurbished Siemens parts across the full automation portfolio: SIMATIC controllers, SIMATIC HMI, Sinamics drives, SITOP power, Sinumerik CNC, SIRIUS control gear and Scalance networking.

Why Choose Siemens

  • Genuine OEM Siemens parts
  • New, surplus and tested-refurbished options
  • Cross-reference and migration support (e.g. S7-300 → S7-1500)
  • Fast worldwide shipping with warranty

Industry Applications

Siemens control and drive products run mission-critical processes across every industrial vertical. Palm Parts Solution stocks the spares, drives, and controllers that keep these industries online.

Food & Beverage

Hygienic VFDs, washdown servo motors, and PLCs for packaging and processing lines.

Packaging

High-speed servo control, vision-integrated PLCs, and reliable HMI for case packers and palletizers.

Material Handling

Conveyor VFDs, sortation logic, and industrial EtherNet backbones for distribution centers.

Automotive

PLC-controlled body shops, servo systems for robotics, and managed industrial networks.

Water & Wastewater

VFD-driven pump stations, SCADA over industrial Ethernet, and corrosion-rated I/O.

Oil & Gas

Hazardous-area control systems, safety PLCs, and remote-station telemetry.

Pharmaceutical

Validated batch control, audit-ready instrumentation, and traceable process automation.

General Manufacturing

Machine control PLCs, motor drives, and MES integration.

Why Buy From Palm Parts Solution

Fast Worldwide Shipping

DHL, FedEx, UPS — door-to-door in 1-4 business days.

Same-Day Quotes

RFQs sent during business hours are answered the same business day.

Sourcing Options

New, surplus and refurbished Siemens options — request current availability.

Machine-Down Support

24/7 emergency sourcing for production-critical failures.

Request a Quote

Custom pricing on volume, repair, and hard-to-find SKUs.

Automation Specialists

Talk to engineers, not call-center agents.

Product Sourcing

We hunt down discontinued and obsolete parts globally.

Obsolete Support

Lifecycle-end Siemens parts — sourced, tested, warrantied.

Applications

Used in automotive, food & beverage, pharma, metals, water/wastewater, energy, oil & gas, packaging and machine-building plants worldwide.

Machine down? Get a fast quote on Siemens parts.

New, surplus, and refurbished Siemens options. Request a quote or speak directly with an automation specialist for emergency sourcing.

Technical guides

6AV2124-0QC02-0AX1 Replacement Guide — SIMATIC HMI Comfort Panel
6AV2124-0MC01-0AX0 Replacement Guide — SIMATIC HMI Comfort Panel
6AV2124-0JC01-0AX0 Replacement Guide — SIMATIC HMI Comfort Panel
6AV2124-0GC01-0AX0 Replacement Guide — SIMATIC HMI Comfort Panel
SINAMICS S120 Fault F07801 — Motor Overcurrent

Is your Siemens SINAMICS S120 drive system tripping on F07801? This comprehensive guide explains what causes the Motor Overcurrent fault and how to resolve it safely.

S7-1500 Fault 16#7000 — Time-of-Day Interrupt Error

Encountering Siemens S7-1500 Fault Code 16#7000? Learn how to diagnose configuration mismatches, synchronization issues, and hardware clock errors in this technical guide.

SINAMICS S120 Fault F31100 — Encoder Zero Mark Distance Error

Troubleshoot F31100 on Siemens SINAMICS S120 drives. Learn how to verify encoder parameters, fix EMI noise, inspect couplings, and test SMC sensor modules.

SINAMICS S120 Fault F30005 — Power Unit I2t Overload

Is your Siemens SINAMICS S120 drive showing fault F30005? Learn what causes this thermal overload error, how to troubleshoot duty cycles, and keep your production line running.

S7-1500 Fault ER LED — ER LED Error Fault

Is the red ER (ERROR) LED flashing or solid on your Siemens S7-1500 CPU? Learn how to diagnose diagnostic buffer faults, trace channel errors, and recover your PLC.

S7-1500 Fault 16#3942 — Rack/Station Fault

Struggling with Siemens S7-1500 fault 16#3942? Learn how to identify, troubleshoot, and resolve critical rack/station failures in your PROFINET and backplane networks.

S7-1500 Fault 16#39C3 — PROFINET IO Communication Error

Learn how to troubleshoot and resolve the PROFINET IO communication error (16#39C3) on Siemens S7-1500 PLCs, including step-by-step diagnostic and diagnostic buffer analysis.

S7-1200 Fault 16#8524 — Read Error from Peripheral

Is your Siemens S7-1200 showing fault code 16#8524? This guide walks you through diagnosing peripheral read errors, checking hardware backplanes, and mapping software addresses.

Frequently asked questions

Where can I buy Siemens PLCs and automation parts?

Sourcing Siemens SIMATIC controllers comes down to whether the platform is still in current production.

Current platforms — S7-1200 and S7-1500 — are available through authorized Siemens distribution with factory configuration support and standard lead times.

Legacy platforms — S7-300, S7-400, S5 and older SIMATIC HMI panels — are increasingly limited in authorized channels. Independent automation specialists such as Palm Parts Solution source these from new old stock, surplus and refurbished inventory.

Identify the part by its MLFB order number (for example 6ES7315-2EH14-0AB0). The trailing digits carry the functional version; a different suffix can mean different memory size, firmware or interface. Match the MLFB exactly, then confirm firmware version against your TIA Portal or STEP 7 project.

Before you buy, verify: the MLFB, firmware/functional version, the memory-card requirement, the communication interface (PROFIBUS versus PROFINET), and whether the seller states condition — new, surplus or refurbished — and the warranty term.

To see what is currently listed, browse Siemens PLCs. For migration planning, see the S7-300 to S7-1500 migration guide or the S7-1500 module compatibility matrix.

Request a quote with the MLFB you need for current availability.

Is the Siemens S7-300 still available?

Yes, but with important caveats. Siemens has officially moved the SIMATIC S7-300 series to legacy status, initiating its phased withdrawal. While they are no longer recommended for new installations, complete product discontinuation takes time, meaning spare parts remain vital for existing systems.

At Palm Parts Solution, we understand that immediate migration isn't always feasible for maintenance engineers and plant managers. To help you avoid costly downtime, we maintain a comprehensive inventory of new, surplus, and certified refurbished Siemens PLC Spare Parts, including S7-300 CPUs, digital/analog I/O modules, and power supplies.

However, for long-term operational resilience, OEMs and facilities should actively plan their transition to the modern S7-1500 controller family. The S7-1500 offers superior diagnostics, faster backplane buses, and TIA Portal integration. For step-by-step advice on managing this hardware and software transition smoothly, please read our Siemens S7-300 to S7-1500 Migration Guide. We are here to support your current lifecycle needs while helping you prepare for future upgrades.

What replaces the Siemens S7-200?

For industrial facilities looking to upgrade from the legacy Siemens SIMATIC S7-200, the direct, modern successor is the SIMATIC S7-1200 controller. Introduced to bridge the gap between micro-PLCs and high-performance automation, the S7-1200 offers a seamless migration path with significantly enhanced processing power, integrated PROFINET ports, and native integration into the TIA Portal engineering framework.

For maintenance engineers and OEMs planning this transition, key factors include:

  • Communications: The S7-1200 relies on Ethernet-based PROFINET, replacing the older serial PPI/MPI protocols of the S7-200.
  • Software Migration: Code written in STEP 7-Micro/WIN cannot be executed directly; it requires conversion or rebuilding within the TIA Portal environment.
  • I/O and Footprint: While the physical dimensions and wiring hookups differ, the S7-1200 features a compact-class modular design that easily fits existing DIN rail layouts.

If you are managing a broader facility upgrade, explore our Siemens S7-300 to S7-1500 Migration Guide to plan your next steps, or browse our active inventory of certified legacy Siemens S7-200 Lifecycle Spare Parts to keep your existing operations running smoothly.

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Palm Parts Solution sells used surplus products. Palm Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by Palm Parts Solution come with Palm Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

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