Spare parts

Siemens automation systems are designed for long service lives, but components wear, degrade, and occasionally fail. Siemens designates certain hardware items as spare parts to support maintenance and repair of installed equipment, including SIMATIC PLCs, ET 200 distributed I/O systems, and LOGO! logic modules, and drive hardware. These spare parts are separate catalog items from the primary automation products they support and are ordered specifically for maintenance purposes. For facilities running Siemens automation equipment, having the correct spare parts available at the time of failure makes the difference between a quick repair and a prolonged shutdown while a component arrives. Siemens spare parts for legacy and phase-out products are increasingly difficult to source through standard OEM channels, making independent supply an important option for maintenance teams. 

PLC Direct supplies Siemens spare parts to customers and maintains existing Siemens automation installations. Our collection covers LOGO! logic module spares, ET 200S electronics module spares, SINUMERIK/SIMOTION maintenance components, and related hardware across multiple product families. 

Where Siemens Spare Parts Are Used 

Siemens spare parts support the maintenance and repair of installed automation hardware across virtually every industrial sector where Siemens equipment is deployed. 

Applications and facilities that rely on Siemens spare parts supply include: 

• Manufacturing plants maintaining SIMATIC ET 200 distributed I/O systems with aging I/O modules 

• Building automation and infrastructure installations using LOGO! logic modules for small-scale control 

• CNC machine tool maintenance requiring SINUMERIK drive and control spare parts 

• Process plants maintaining legacy S7-based automation with discontinued I/O modules 

• Facilities with isolated automation assets where a failed module must be replaced in kind 

Siemens Spare Parts 

The Siemens spare parts collection at PLC Direct covers LOGO! basic modules, ET 200S electronics modules, and SINUMERIK/SIMOTION maintenance hardware. All product families and part number references below are confirmed on the live PLC Direct collection page. 

Product Families 

• LOGO! Basic Modules with Display: LOGO! 230RCE logic modules at V8.3 for small-scale relay logic replacement and standalone control applications. The 230RCE (6ED1052-1FB08-0BA1) provides 8 DI/4 DO with a 115/230 V AC supply, relay outputs, 400 program memory blocks, Ethernet, an integrated web server, and microSD card capability. At the start of the final year of the support lifecycle, the status. 

• LOGO! Basic Modules without Display: LOGO! 230RCEo (without display variant), part number 6ED1052-2FB08-0BA1, matching the 230RCE specification but without the onboard display. Same supply, I/O count, and connectivity. At start-of-final-year-of-support lifecycle status. 

• LOGO! 230RCE V8 (6ED1052-1FB08-0BA0): Logic module with display, 115/230 V AC/relay, 8 DI/4 DO, 400 blocks, Ethernet, V8 firmware. Discontinued (PM500). 

• ET 200S Electronics Modules (Spare Parts): Discontinued electronics modules for the ET 200S distributed I/O platform. The 8 DI 24 V DC module (6ES7131-4BF00-0AA0) and 8 DO 24 V DC / 0.5 A module (6ES7132-4BF00-0AA0) are both at product cancellation lifecycle status, confirming they are no longer available through OEM channels. PLC Direct stocks these for maintenance replacement. 

• SINUMERIK/SIMOTION Fan and Battery Modules: Replacement fan and battery modules for SINUMERIK NCU 7x0 and SIMOTION D445-1/D4x5-2 control units (6FC5348-0AA02-0AA0). Confirmed in the spare parts collection and also cross-referenced in the SINUMERIK collection. 

• SCALANCE X204-2 Managed Switch (6GK5204-2BB10-2AA3): Managed industrial Ethernet switch with 4x 10/100 Mbps RJ45 ports and 2x 100 Mbps multimode BFOC ports, redundant power supply, PROFINET IO device functionality, and integrated redundancy manager. At the product cancellation lifecycle status. 

Available at PLC Direct 

• LOGO! 230RCE with display, 115/230 V AC, 8 DI / 4 DO relay, V8.3, Ethernet (6ED1052-1FB08-0BA1) 

• LOGO! 230RCEo without display, 115/230 V AC, 8 DI / 4 DO relay, V8.3, Ethernet (6ED1052-2FB08-0BA1) 

• ET 200S spare electronics module, 8 DI 24 V DC, 15 mm width (6ES7131-4BF00-0AA0) 

• ET 200S spare electronics module, 8 DO 24 V DC / 0.5 A, 15 mm width (6ES7132-4BF00-0AA0) 

• SINUMERIK/SIMOTION double fan/battery module for NCU 7x0 and D445-1/D4x5-2 (6FC5348-0AA02-0AA0)

What to Know Before You Buy Siemens Spare Parts 

Spare parts are designated for the maintenance and repair of specific installed products. Several key considerations apply to ordering correctly. 

Hardware condition options: We supply spare parts as surplus sealed, refurbished, and used hardware. Surplus sealed units are factory-sealed stock. Refurbished units have been tested and restored to operational condition. 

Lifecycle status: Many items in the spare parts collection carry phase-out, product cancellation, or final-year-of-support lifecycle status. This is expected for spare parts categories, where components often outlast the primary product’s active production lifecycle. PLC Direct’s value for these items is precisely this: providing independent access to components that Siemens no longer actively distributes through OEM channels. 

ET 200S module width: ET 200S electronics modules are 15 mm wide. This width must be confirmed against the available slot space in the ET 200S station before ordering, as replacing a module with the wrong width is not possible in an assembled station. 

LOGO! version compatibility: LOGO! 230RCE and 230RCEo modules at V8.3 require LOGO! Soft Comfort V8.3 or higher for programming. Earlier LOGO! projects are executable on these units. Cloud connection capability is available in all LOGO! 8.3 basic units. 

Warranty: All Siemens spare parts purchased from PLC Direct include a standard 1-year warranty covering defects and functionality, applicable to surplus sealed, refurbished, and used products.