Siemens catalog
Siemens industrial automation parts
Browse 1,101 published Siemens parts or search by exact model number.
Source Siemens parts by model number
Siemens SIMATIC, SINAMICS, and SITOP parts remain among the most requested SKUs in global MRO and retrofit projects. UsedAutomations indexes published Siemens CPUs, I/O, HMIs, drives, and power modules by exact order number so buyers can move from obsolescence alerts to a quote without wading through unstructured marketplace listings. We focus on secondary-market inventory—surplus, removed-from-service, and refurbished stock—where condition, firmware, and photo evidence must be confirmed before payment. Whether you are supporting an existing S7 or TIA portal line, replacing a failed operator panel, or sourcing a discontinued SINAMICS frame size, start from the catalog below or search the precise MLFB. Submit an RFQ with quantity, ship-to country, and required condition; we respond with availability, lead time, and stated quote terms rather than cart checkout.
Siemens sourcing trust checklist
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
All Siemens parts
1,101 published listings · Page 13 of 46

3TF40
Siemens 3TF40 22 4BB4 Contactor
Siemens
- Condition
- Ask for condition
- Availability
- Available on request
- Lead time
- Lead time on quote

3TC4417-0AM4
SIEMENS Contactor 3TC44 17-0AM4
Siemens
- Condition
- Ask for condition
- Availability
- Available on request
- Lead time
- Lead time on quote

3SU1801-0NB00-2AC2
Siemens 3SU1801-0NB00-2AC2 Emergency Stop Push Button
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3SU1801-0NA00-2AC2
Siemens 3SU1801-0NA00-2AC2 Emergency Stop Push Button
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3SK1211
Siemens 3SK1211 1BB40 Safety Relay
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3SF5500-0CB
Siemens 3SF5500-0CB AS-i A/B-slave
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3SE5122-0CC02
Siemens 3SE5 122-0CC02 Position Switch
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3SE5112-0CH01
Siemens 3SE5112-0CH01 Limit Switch
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3SE2-9321-AA20
Siemens Foot switch 3SE2-9321-AA20
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3SB3400-0C
Siemens 3SB3400-0C 2xNC EMERGENCY STOP
Siemens
- Condition
- Ask for condition
- Availability
- Available on request
- Lead time
- Lead time on quote

3SB3400-0C
Siemens 3SB3400-0C 2xNC 2xNO EMERGENCY STOP
Siemens
- Condition
- Ask for condition
- Availability
- Available on request
- Lead time
- Lead time on quote

3RX9503-0BA00
Siemens AS-I Power 3RX9503-0BA00 Power Supply
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RX9307-1AA00
Siemens 3RX9307-1AA00 Power Supply
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RW4037-1BB14
Siemens 3RW4037-1BB14 AC Semiconductor Motor Starter
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RW4028-2BB04
Siemens Sirius AC Semiconductor Motor Starter 3RW4028-2BB04
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RW4026-1BB04
Siemens 3RW4026-1BB04 Soft Starter
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3rv2711-1kd10
Siemens 3rv2711-1kd10 12.5amp 3pole Circuit Breaker XLNT Takeout
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RV2031
Siemens 3RV2031 4RA10 Circuit Breaker
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RV2021
Siemens 3RV2021 4DA10 Circuit Breaker
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RV2011
Siemens 3RV2011 0FA10 Circuit Breaker
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RV2011
Siemens 3RV2011 1FA15 Circuit Breaker
Siemens
- Condition
- Ask for condition
- Availability
- Available on request
- Lead time
- Lead time on quote

3RV2011
Siemens 3RV2011 1KA10 Circuit Breaker
Siemens
- Condition
- Ask for condition
- Availability
- Available on request
- Lead time
- Lead time on quote

3RV2011
Siemens 3RV2011 1JA10 Circuit Breaker
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote

3RV2011
Siemens 3RV2011 1GA10 Circuit Breaker
Siemens
- Condition
- Ask for condition
- Availability
- In stock
- Lead time
- Lead time on quote
Need a Siemens quote?
Send us the exact Siemens model number, quantity, and destination. We will check current sourcing options.