Electrical Components
Browse surplus and used industrial electrical components including contactors, circuit breakers, power supplies, encoders, I/O modules, and sensors. Shipped nationwide from MRO Exchange in Illinois.
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Danaher Motion Differential Encoder Interface Module M-1008-0342
Regular price $99.00 USDRegular priceSale price $99.00 USD -
Mean Well Rail Mount Switching Power Supply DRP-240-24
Regular price $115.00 USDRegular priceSale price $115.00 USD -
Fanuc Power Unit A14B-0061-B001 220V
Regular price $199.00 USDRegular priceSale price $199.00 USD -
Allen-Bradley Motor Starter 509-BOD
Regular price $119.00 USDRegular priceSale price $119.00 USD -
Omron Switching Power Supply S8JX-N30024CD
Regular price $209.00 USDRegular priceSale price $209.00 USD -
Allen-Bradley Contactor with Overload Relay 100-A60N*3 with 193-A1K3 600 VAC MAX
Regular price $199.00 USDRegular priceSale price $199.00 USD -
Mitsubishi Electric Corp. No-Fuse Molded Case Circuit Breaker NF50-CS AC 600V
Regular price $39.00 USDRegular priceSale price $39.00 USD -
Klockner Moeller 3-Pole IEC Magnetic Contactor DIL 4 AM
Regular price $149.00 USDRegular priceSale price $149.00 USD -
Miller Electric DC Arc Welding Power Source Gold Star 300SS
Regular price $849.00 USDRegular priceSale price $849.00 USD -
Mitsubishi Electric 3-Pole Molded Case Circuit Breaker (MCCB) NF400-CP 600VAC
Regular price $219.00 USDRegular priceSale price $219.00 USD -
Mitsubishi Electric Absolute Encoder 5 VDC OSA166ET2NA
Regular price $1,000.00 USDRegular priceSale price $1,000.00 USD -
LH Research Mighty-Mite Power Supply MM23-E0868/115 m00147
Regular price $303.99 USDRegular priceSale price $303.99 USD -
Fanuc A03B-0807-C052 24V DC Analog Output Module
Regular price $300.00 USDRegular priceSale price $300.00 USD -
Fanuc A06B-6150-H018 Alpha i Power Supply Module 400 to 480 V
Regular price $1,972.00 USDRegular priceSale price $1,972.00 USD -
Fanuc A03B-0819-C001 10 Slot I/O Rack Assembly with A03B-0819 series modules 24V DC
Regular price $900.00 USDRegular priceSale price $900.00 USD -
Giddings & Lewis 32AC Output Board M-1017-6051 502-03567-00
Regular price $374.00 USDRegular priceSale price $374.00 USD -
Mazak TRD-NA360PW5M 10.8 to 26.4 VDC Absolute Rotary Encoder
Regular price $299.00 USDRegular priceSale price $299.00 USD -
Psytronics P4803D 480V 3 Phase Transient Voltage Surge Suppressor New
Regular price $1,499.00 USDRegular priceSale price $1,499.00 USD
Used and surplus industrial electrical components for sale. MRO Exchange stocks a continuously rotating inventory of panel and control system electrical components available for immediate purchase and fast nationwide shipping.
Industrial electrical components are the building blocks of every control panel, machine tool enclosure, and automation system. Contactors switch motor and load circuits. Circuit breakers protect those circuits from overcurrent faults. Power supplies convert and regulate voltage for control systems and field devices. Encoders provide position and motion feedback to drives and controllers. I/O modules interface PLCs and CNC controls with the physical world. Sensors detect the presence, position, and state of objects on machines and production lines.
These components share two characteristics that make the surplus market a practical sourcing channel. First, they fail in service — often suddenly, often in production, and often on older equipment where the specific model is no longer stocked by standard distributors. Second, they are frequently discontinued as manufacturers cycle through product generations, leaving facilities that run older equipment with no direct OEM sourcing option for replacement parts.
MRO Exchange sources and stocks surplus electrical components across all of these categories, with inventory that rotates regularly as new acquisitions come in. Whether you are chasing a specific failed component on a production machine or building out a critical spares inventory for high-uptime equipment, MRO Exchange offers a practical and cost-effective sourcing option for industrial electrical components across the major control and automation platforms.
Every electrical component listed on MRO Exchange ships nationwide from our facility in Illinois at prices well below new OEM and distributor cost. Browse by subcategory above or scroll below to view our full current electrical components inventory.