Accessories

Siemens accessories cover the mounting hardware, connecting cables, operator panels, contact blocks, busbars, and add-on components that keep installed Siemens automation equipment functional and properly configured. These components sit across the SIRIUS, SINAMICS, SIMOCODE, and circuit breaker product families, supporting everything from motor starter installations to drive operator interfaces.

We supply Siemens accessories for customers maintaining existing installations and sourcing replacement components across a wide range of Siemens automation hardware. Our collection spans mounting accessories, busbar systems, connecting cables, contact blocks, and spare parts for SIRIUS switching devices, SINAMICS drives, and related equipment.

Where Siemens Accessories Are Used

Accessories are rarely the first component a maintenance team thinks about, until one is missing. A failed contact block on a position switch, a worn busbar connection, or a missing mounting bracket can hold up a commissioning job or extend an unplanned outage longer than the primary component ever would. For facilities running Siemens automation hardware across multiple product families, having reliable access to the right accessory at the right time matters as much as sourcing the primary hardware itself.

Facilities that depend on Siemens accessories include:

• Motor control centers and panel builds using SIRIUS switching devices.
  SINAMICS G120 and G120X drive installations requiring operator panel or door mounting accessories
  SIMOCODE motor management systems needing connecting cables and extension modules
  Circuit breaker installations, including 3WL and 3VL series testing and mounting accessories
  Position switch and foot switch installations requiring replacement contact blocks
  SIRIUS 3RM1 motor starter builds using busbar adapters and fuse modules

When the primary hardware is in place but an accessory is holding up the installation or repair, sourcing it quickly from available stock keeps the job moving.

Siemens Accessories Products

This collection brings together add-on and spare part hardware across multiple Siemens product families. The components below represent confirmed product types available through PLC Direct, organized by accessory category.

Product Categories

• Connecting Cables: System interface cables for SIMOCODE motor management modules, covering flat and round cable variants in lengths from 0.1 m to 2.5 m. Used to connect basic units, current measuring modules, operator panels, and extension modules via the SIMOCODE system interface. Confirmed part numbers include 3UF7931-0AA00-0, 3UF7932-0AA00-0, 3UF7932-0BA00-0, 3UF7933-0BA00-0, and 3UF7937-0BA00-0.
• Busbar Accessories: 3-phase busbars and busbar adapters for motor starter and circuit breaker installations. Includes the 3RV1915-1DB 3-phase busbar with fork-shaped connections for modular spacing at 45 mm, supporting up to 5 switches. Busbar adapters for SIRIUS 3RM1 motor starters accommodate 22.5 mm busbar systems, including 8US1216, 8US1616, and 8US1716 series.
• Mountable and Standalone Accessories: Stand-alone assembly supports, shunt releases, and mounting hardware for SIRIUS motor protection and circuit breaker devices. The 3RU2936-3AA01 stand-alone assembly support covers 3RU21, 3RB30, 3RB31, and 3RR2 devices in Size S2. The 3RV2902-1DF0 shunt release operates across 90–110 V AC and 70–190 V AC/DC ranges for 3RV2 motor starter protectors.
• Contact Blocks and Spare Parts: Replacement contact blocks for SIRIUS position switches and foot switches. The 3SE5000-0CA00 contact block covers 3SE51/52 position switches with 1 NO/1 NC quick-action contact configuration. Foot switch replacement contact blocks (3SE3982-0K and 3SE3982-0L) cover the 3SE2 and 3SE3 series at 6 A and 16 A ratings, respectively.
• Operator Panels and Interface Accessories: Operator panels, handheld units, and mounting kits for SINAMICS and SIMOCODE devices. Includes the SINAMICS G120 door mounting kit (6SL3256-0AP00-0JA0) for IOP, IOP-2, and BOP-2 panels at IP55/UL Type 12, the IOP-2 handheld unit (6SL3255-0AA00-4HA1), and the SIRIUS IO-Link operator panel (3RA6935-0A) for SIRIUS switching devices.
• Circuit Breaker Accessories: Testing and configuration accessories for Siemens 3WL air circuit breakers. The 3WL9111-0AT32-0AA0 testing device supports electronic release testing for ETU release 2 units.

Available at PLC Direct

• Connecting cables for SIMOCODE system interfaces in flat and round variants, 0.1 m to 2.5 m
• 3-phase busbars and busbar adapters for SIRIUS motor starter and circuit breaker installations
• Stand-alone assembly supports for 3RU21, 3RB30, 3RB31, and 3RR2 devices
• Shunt releases for 3RV2 motor starter protectors across AC and DC voltage ranges.
• Replacement contact blocks for SIRIUS 3SE51/52 position switches and 3SE2/3SE3 foot switches
• SINAMICS G120 door mounting kits for IOP, IOP-2, and BOP-2 operator panels
• IOP-2 handheld units for SINAMICS drive configuration
• SIRIUS IO-Link operator panels for SIRIUS switching devices
• Circuit breaker testing devices for 3WL series electronic releases
• Fuse modules and adapters for SIRIUS 3RM1 motor starters

What to Know Before You Buy Siemens Accessories

Accessories span multiple Siemens product families and generations, which makes compatibility verification more important here than in most other categories. Ordering the wrong accessory, even by a single product generation, often means it physically fits but won't function correctly in the installed system.

Hardware condition options: We supply Siemens accessories as surplus sealed, refurbished, and used hardware. For small mechanical accessories such as contact blocks and busbars, surplus sealed stock is generally preferred where available. Connecting cables and operator panels are also available as refurbished units, tested for functionality.

Compatibility considerations: Each accessory in this collection is designed for specific Siemens product families and, in many cases, specific device sizes or series. SIMOCODE module cables are not interchangeable with SINAMICS cables. Contact blocks are rated by current (6 A vs. 16 A) and must match the installed switch series. Busbars are sized for specific module spacings and switch counts. Always confirm the parent device part number before ordering any accessory.

Part identification: Each accessory listing includes the compatible parent devices. For SIMOCODE cables, the flat vs. round designation and cable length are part of the part number. For contact blocks, the product family prefix (3SE5 for position switches, 3SE3 for foot switches) indicates the compatible switch range. When in doubt, contact us with the parent device part number, and we can help confirm compatibility.

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