Essential Electric Supply sells Siemens products as an independent Siemens distributor and supplier, covering Siemens electrical products, electrical supplies, and replacement parts for facility managers, electrical contractors, and maintenance buyers.  

The catalog spans circuit breakers, motor controls, switches, and bus plugs, including QP and QF plug-in breakers, BL and BQD bolt-on breakers, Sentron molded case breakers, and Class 14 motor starters and heater elements.  

Current Siemens production and hard-to-find parts for older installed equipment are both in stock and ready to ship. Every order ships fast, includes expert technical support, and is backed by a 2-year warranty. 

Siemens Power Distribution Equipment We Stock 

Circuit breakers, motor controls, switches, and bus plugs are organized by product type below, covering current Siemens lines like QP, BQD, and Sentron breakers and Class 14 starters, plus replacement parts for older Siemens equipment still in service. 

• Siemens Circuit Breakers: QP, BL, BQD, and Sentron breaker lines in stock 

• Siemens Motor Controls: Class 14 starters, contactors, and heater elements 

• Siemens Switches: Disconnect and safety switches for commercial use 

• Siemens Bus Plugs: For busway and power distribution systems 

Where to Buy Obsolete Siemens Parts 

Essential Electric stocks new, surplus, and obsolete Siemens parts, from current breakers and starters to discontinued models for equipment that has run for decades.  

Most distributors carry only current Siemens stock, while our replacement specialists keep the hard-to-find parts that older panels still depend on, including breakers, motor starters, heater elements, and switches. Everything comes from a catalog of more than 100,000 products by top manufacturers, so one supplier can cover the rest of a project too.  

Whether you are keeping a panel alive through a repair window or planning a current installation, the same team can source new, surplus, or obsolete stock for the same Siemens line. In-stock orders ship the same day, and emergency overnight delivery is available when a shutdown cannot wait. Our technical team helps match a nameplate or part number to the right Siemens part before you order. 

Read the full Siemens brand history for the company's background, or browse the other manufacturers we stock.