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Siemens

Shop our collection of surplus Siemens PLCs. These industrial control systems have been used in a variety of industrial settings and have been fully tested for functionality and reliability. With models available, including the popular S7-300 and S7-1200 series, we have the perfect solution for your automation needs. Don't miss out on this opportunity to save on cost while still getting the industry-leading technology from Siemens. Browse our stock today and find the PLC that fits your specific needs.
  • 6ES7321-1FH00-0AA0 Siemens
    $357.50 - $382.25
    $382.25
    $357.50 - $382.25
    $382.25

    6ES7321-1FH00-0AA0 Siemens

    SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED 16 DI, 120/230V AC, 1 X 20 PIN

  • 6ES7322-5HF00-0AB0 Siemens
    $682.13 - $1,847.30
    $682.13 - $1,847.30
    $682.13 - $1,847.30
    $682.13

    6ES7322-5HF00-0AB0 Siemens

    SIMATIC S7-300, Digital output SM 322, isolated, 8 DO (relay), 1x 40-pole, 24 V DC, 120-230 V AC, 5 A with RC filter overvoltage protection

  • 6ES7322-1BH01-0AA0 Siemens
    $288.75 - $300.00
    $288.75 - $300.00
    $288.75 - $300.00
    $288.75

    6ES7322-1BH01-0AA0 Siemens

    SIMATIC S7-300, DIGITAL OUTPUT SM 322, OPTICALLY ISOLATED, 16 DO, 24V DC, 0.5A, 1 X 20 PIN SUM OF OUTPUT CURRENTS 4A/GROUP (8A/MODULE)

  • 6ES7321-1BH01-0AA0 Siemens
    $509.38 - $1,279.78
    $509.38 - $1,279.78
    $509.38 - $1,279.78
    $509.38

    6ES7321-1BH01-0AA0 Siemens

    SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 16DI, 24 V DC, 20 PIN

  • 6ES7321-1BH10-0AA0 Siemens
    $0.00 - $613.60
    $613.60
    $0.00 - $613.60
    $613.60

    6ES7321-1BH10-0AA0 Siemens

    SIMATIC S7-300, DIGITAL INPUT SM 321, GALVANICALLY ISOLATED, 16DI, 24 V DC, 1 X 20 PIN, 0.05 MS INPUT DELAY

  • 6ES7322-1HF10-0AA0 Siemens
    $280.50 - $343.75
    $280.50 - $343.75
    $280.50 - $343.75
    $280.50

    6ES7322-1HF10-0AA0 Siemens

    SIMATIC S7-300, Digital output SM 322, isolated, 8 DO (relay), 1x 40-pole, 24 V DC, 5 A or 230 V AC, 5 A, connectors with spring-loaded terminal ca...

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  • 6ES7331-7KB02-0AB0 Siemens
    $336.60 - $1,240.10
    $336.60 - $1,240.10
    $336.60 - $1,240.10
    $336.60

    6ES7331-7KB02-0AB0 Siemens

    SIMATIC S7-300, Analog input SM 331, isolated, 2 AI, Resolution 9/12/14 bits, U/I/thermocouple/resistor, alarm, diagnostics, 1x 20-pole, Removing/i...

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  • 6ES7360-3AA01-0AA0 Siemens
    $357.50 - $1,187.50
    $357.50 - $1,187.50
    $357.50 - $1,187.50
    $357.50

    6ES7360-3AA01-0AA0 Siemens

    SIMATIC S7-300,INTERFACE MODULE IM 360 IN CENTRAL RACK, FOR CONNECTING MAX. 3 EXPANSION RACKS, WITH K-BUS

  • 6ES7321-1FF10-0AA0 Siemens
    $715.00 - $940.00
    $940.00
    $715.00 - $940.00
    $940.00

    6ES7321-1FF10-0AA0 Siemens

    SIMATIC S7-300, Digital input SM 321, isolated, 8 DI, 120 V/230 V AC, 1x 40-pole, with single rooting/channel

  • 6ES7322-1BF01-0AA0 Siemens
    $343.75 - $960.10
    $343.75 - $960.10
    $343.75 - $960.10
    $343.75

    6ES7322-1BF01-0AA0 Siemens

    SIMATIC S7-300, DIGITAL OUTPUT SM 322, OPTICALLY ISOLATED, 8 DO, 24V DC, 2A, 1 X 20 PIN

  • 6ES7321-1BH02-0AA0 Siemens
    $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00

    6ES7321-1BH02-0AA0 Siemens

    Simatic S7-300, Digital Input SM321, Optically ISOLATED, 16DI, 24 V DC, 1 X 20 PIN

  • 6ES7321-1BH50-0AA0 Siemens
    $288.75 - $767.50
    $288.75 - $767.50
    $288.75 - $767.50
    $288.75

    6ES7321-1BH50-0AA0 Siemens

    Simatic S7-300, Digital Input SM321, Optically Isolated 16DI, 24 V DC, SOURCE INPUT, 1 X 20 PIN

  • 6ES7365-0BA01-0AA0 Siemens
    $347.46 - $505.00
    $347.46 - $505.00
    $347.46 - $505.00
    $347.46

    6ES7365-0BA01-0AA0 Siemens

    SIMATIC S7-300, Connection IM 365 for connection of an extension rack without C bus, 2 modules+ connecting cable 1 m

  • 6ES7321-1FF01-0AA0 Siemens
    $600.58 - $722.50
    $600.58 - $722.50
    $600.58 - $722.50
    $600.58

    6ES7321-1FF01-0AA0 Siemens

    Simatic S7-300, Digital Input SM321, Optically ISOLATED, 8 DI, 120V/230V AC, 1 X 20 PIN

  • 6ES7478-2DA01-0AC0 Siemens
    $0.00 - $4,947.00
    $4,947.00
    $0.00 - $4,947.00
    $4,947.00

    6ES7478-2DA01-0AC0 Siemens

    Connection TPM478-1 for CS275 local bus connection, and for Teleperm M process Peripherals

  • 6DD1607-0AA2 Siemens
    $4,680.00 - $10,088.81
    $4,680.00 - $10,088.81
    $4,680.00 - $10,088.81
    $4,680.00

    6DD1607-0AA2 Siemens

    SIMATIC S7-400, FM458-1 DP application group for SIMATIC S7-400

  • 6DD1607-0AA0 Siemens
    $1,124.98 - $3,850.00
    $1,124.98 - $3,850.00
    $1,124.98 - $3,850.00
    $1,124.98

    6DD1607-0AA0 Siemens

    SIMATIC S7-400, FM 458 APPLICATION MODULE FOR SIMATIC S7-400

  • 6ES7453-3AH00-0AE0 Siemens
    $2,420.00 - $2,673.00
    $2,673.00
    $2,420.00 - $2,673.00
    $2,673.00

    6ES7453-3AH00-0AE0 Siemens

    SIMATIC S7-400, function module FM 453, (3-channel) for positioning with servo and stepper motors, incl. configuration package on CD

  • 6ES7431-7KF00-0AB0 Siemens
    $4,252.21 - $11,542.50
    $4,252.21 - $11,542.50
    $4,252.21 - $11,542.50
    $4,252.21

    6ES7431-7KF00-0AB0 Siemens

    SIMATIC S7-400, analog input SM 431, 8 AI, resolution 16 bit, U/I/Thermocouple, isolated with single rooting, diagnostics, alarm, 20 ms conversion ...

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  • 6DD1607-0EA2 Siemens
    Sold out
    $0.00 - $0.00
    $0.00
    $0.00 - $0.00
    $0.00

    6DD1607-0EA2 Siemens

    SIMATIC S7-400, COMUNICATION EXPANSION MODULE EXM 448-2 WITH 2 SIMOLINK INTERFACES

  • 6ES7456-4EY00-0AE0 Siemens
    $0.00 - $4,131.75
    $4,131.75
    $0.00 - $4,131.75
    $4,131.75

    6ES7456-4EY00-0AE0 Siemens

    SIMATIC M7-400, FM456-4 APPLICATION MODULE WITH 80486, 75 MHZ, MPI

  • 6ES7431-7QH00-0AB0 Siemens
    $547.50 - $6,898.50
    $547.50 - $6,898.50
    $547.50 - $6,898.50
    $547.50

    6ES7431-7QH00-0AB0 Siemens

    SIMATIC S7-400, analog input SM 431, isolated 16 AI; resolution 16 bit, U/I/Resistor/Thermocouple/Pt100 , alarm, diagnostics

  • 6ES7441-2AA05-0AE0 Siemens
    $2,800.00 - $4,615.50
    $4,615.50
    $2,800.00 - $4,615.50
    $4,615.50

    6ES7441-2AA05-0AE0 Siemens

    SIMATIC S7-400, coupling module CP 441-2 for point-to-point connections, 2 channels incl. configuration package on CD

  • 6ES7431-1KF20-0AB0 Siemens
    $3,144.33 - $3,781.44
    $3,144.33 - $3,781.44
    $3,144.33 - $3,781.44
    $3,144.33

    6ES7431-1KF20-0AB0 Siemens

    SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 14 bit, U/IResistor 8 AI, cycle time 0.416 ms

  • 6ES7451-3AL00-0AE0 Siemens
    $5,020.92 - $6,979.50
    $5,020.92 - $6,979.50
    $5,020.92 - $6,979.50
    $5,020.92

    6ES7451-3AL00-0AE0 Siemens

    SIMATIC S7-400, positioning module FM 451 for rapid/slow traverse drives, 3 channels incl. configuration package on CD

  • 6ES7452-1AH00-0AE0 Siemens
    $1,842.50 - $4,798.50
    $1,842.50 - $4,798.50
    $1,842.50 - $4,798.50
    $1,842.50

    6ES7452-1AH00-0AE0 Siemens

    SIMATIC S7-400, FM 452 ELECTRONIC CAM CONTROLLER INCL. CONFIG. PACKAGE ON CD

  • 6ES7467-5GJ02-0AB0 Siemens
    $0.00 - $1,125.00
    $1,125.00
    $0.00 - $1,125.00
    $1,125.00

    6ES7467-5GJ02-0AB0 Siemens

    SIMATIC S7-400, interface IM467 PROFIBUS DP master interface(RS485) for connection of field devices according to PROFIBUS-DP standard, can be used ...

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  • 6ES7441-2AA04-0AE0 Siemens
    $522.50 - $1,874.98
    $522.50 - $1,874.98
    $522.50 - $1,874.98
    $522.50

    6ES7441-2AA04-0AE0 Siemens

    SIMATIC S7-400, COUPLING MODULE CP 441-2 FOR POINT-TO-POINT- CONNECTIONS, 2 CHANNELS INCL. CONFIGURATION PACKAGE ON CD

  • 6ES7432-1HF00-0AB0 Siemens
    $467.47 - $4,943.60
    $467.47 - $4,943.60
    $467.47 - $4,943.60
    $467.47

    6ES7432-1HF00-0AB0 Siemens

    Simatic S7-400, SM432 ANALOG OUTPUT Module OPTIC. ISOLATED, 8 AO, 13 BIT RESOLUTION, U/I

  • 6ES7440-1CS00-0YE0 Siemens
    $0.00 - $947.50
    $947.50
    $0.00 - $947.50
    $947.50

    6ES7440-1CS00-0YE0 Siemens

    SIMATIC S7-400, coupling module CP 440-1 for point-to-point connections, 1 channel incl. configuration package on CD

  • 6ES7441-2AA03-0AE0 Siemens
    $467.47 - $2,487.10
    $467.47 - $2,487.10
    $467.47 - $2,487.10
    $467.47

    6ES7441-2AA03-0AE0 Siemens

    SIMATIC S7-400, CP 441-2 COMMUNICATIONS MODULE FOR POINT TO POINT CONNECTIONS 2 CHANNELS INCL. CONFIG. PACKAGE ON CD

  • 6ES7431-7KF10-0AB0 Siemens
    $3,486.49 - $4,237.07
    $3,486.49 - $4,237.07
    $3,486.49 - $4,237.07
    $3,486.49

    6ES7431-7KF10-0AB0 Siemens

    SIMATIC S7-400, analog input SM 431, 8 AI, resolution 16 bit, resistor/PT100/NI100 isolated, diagnostics alarm, 20 ms conversion time

  • 6ES7422-7BL00-0AB0 Siemens
    $1,397.50 - $1,749.98
    $1,397.50 - $1,749.98
    $1,397.50 - $1,749.98
    $1,397.50

    6ES7422-7BL00-0AB0 Siemens

    SIMATIC S7-400, digital output SM 422, isolated 32 DO; 24 V DC, 0.5 A with 0.15 ms output delay, diagnostics

  • 6ES7463-2AA00-0AA0 Siemens
    $1,063.63 - $1,324.98
    $1,063.63 - $1,324.98
    $1,063.63 - $1,324.98
    $1,063.63

    6ES7463-2AA00-0AA0 Siemens

    Simatic S7-400, IM463-2 TRANSMITTER Interface Module FOR DISTRIBUTED CONNECTION TO Simatic S5 EXPANSION Modules VIA IM314, UP TO 600 M

  • 6ES7441-1AA04-0AE0 Siemens
    $1,249.98 - $5,009.05
    $1,249.98 - $5,009.05
    $1,249.98 - $5,009.05
    $1,249.98

    6ES7441-1AA04-0AE0 Siemens

    SIMATIC S7-400, Coupling module CP 441-1 for point-to-point connections, 1-channel incl. configuration package on CD

  • 6ES7441-1AA05-0AE0 Siemens
    $0.00 - $2,420.00
    $0.00 - $2,420.00
    $0.00 - $2,420.00
    $2,420.00

    6ES7441-1AA05-0AE0 Siemens

    SIMATIC S7-400, coupling module CP 441-1 for point-to-point connections, 1 channel incl. configuration package on CD

  • 6AG1422-1BL00-2AA0 Siemens
    $0.00 - $3,085.20
    $0.00 - $3,085.20
    $0.00 - $3,085.20
    $3,085.20

    6AG1422-1BL00-2AA0 Siemens

    SIPLUS S7-400 SM422 32DA -25 ... +60 DEGREES C BASED ON 6ES7422-1BL00-0AA0

  • 6ES7431-1KF10-0AB0 Siemens
    $795.00 - $1,113.75
    $795.00 - $1,113.75
    $795.00 - $1,113.75
    $795.00

    6ES7431-1KF10-0AB0 Siemens

    Simatic S7-400, SM431 ANALOG Input Module OPTIC. ISOLATED, 8 AI, 14 BIT RESOLUTION, U/I/RESIST./ THERMOEL/PT100

  • 6ES7460-3AA01-0AB0 Siemens
    $1,190.00 - $2,904.88
    $1,190.00 - $2,904.88
    $1,190.00 - $2,904.88
    $1,190.00

    6ES7460-3AA01-0AB0 Siemens

    Simatic S7-400, IM460-3 TRANSMITTER Interface MODULE, FOR DISTRIBUTED CONNECTION UP TO 102 M, with K BUS

  • 6ES7431-1KF00-0AB0 Siemens
    $1,499.98 - $1,749.98
    $1,749.98
    $1,499.98 - $1,749.98
    $1,749.98

    6ES7431-1KF00-0AB0 Siemens

    Simatic S7-400, SM431 ANALOG Input Module OPTIC. ISOLATED, 8 AI, 13 BIT RESOLUTION, U/I/RESIST.

  • 6ES7461-3AA01-0AA0 Siemens
    $0.00 - $2,390.34
    $0.00 - $2,390.34
    $0.00 - $2,390.34
    $2,390.34

    6ES7461-3AA01-0AA0 Siemens

    SIMATIC S7-400, interface module receiver IM 461-3 for distributed coupling up to 102 m, with C-bus

  • 6ES7421-1EL00-0AA0 Siemens
    $1,322.50 - $3,398.40
    $1,322.50 - $3,398.40
    $1,322.50 - $3,398.40
    $1,322.50

    6ES7421-1EL00-0AA0 Siemens

    SIMATIC S7-400, SM 421 DIGITAL INPUT MODULE, FLOATING, 32 DI, 120V DC/AC

  • 6ES7450-1AP00-0AE0 Siemens
    $990.00 - $2,107.00
    $990.00 - $2,107.00
    $990.00 - $2,107.00
    $990.00

    6ES7450-1AP00-0AE0 Siemens

    SIMATIC S7-400, function module FM 450-1 for counter function with 2 channels incl. configuration package on CD

  • 6ES7441-1AA02-0AE0 Siemens
    $972.50 - $2,025.86
    $972.50 - $2,025.86
    $972.50 - $2,025.86
    $972.50

    6ES7441-1AA02-0AE0 Siemens

    SIMATIC S7-400, CP 441-1 COMMUNICATIONS MODULE FOR POINT TO POINT CONNECTIONS 1 CHANNEL

  • 6ES7422-1HH00-0AA0 Siemens
    $519.75 - $2,472.98
    $519.75 - $2,472.98
    $519.75 - $2,472.98
    $519.75

    6ES7422-1HH00-0AA0 Siemens

    Simatic S7-400, SM422 Digital Output MODULE, OPTIC. ISOLATED, 16 DO, 5..230V AC, 5A RELAY

  • 6AG1421-1BL01-2AA0 Siemens
    $0.00 - $2,404.60
    $0.00 - $2,404.60
    $0.00 - $2,404.60
    $2,404.60

    6AG1421-1BL01-2AA0 Siemens

    SIPLUS S7-400 SM421 32DE -25 ... +60 DEGREES C BASED ON 6ES7421-1BL01-0AA0

  • 6ES7421-7BH01-0AB0 Siemens
    $522.50 - $3,178.80
    $522.50 - $3,178.80
    $522.50 - $3,178.80
    $522.50

    6ES7421-7BH01-0AB0 Siemens

    SIMATIC S7-400, DIGITAL INPUT SM 421, GALVANICALLY ISOLATED, 16 DI, 24V DC WITH 0.05 MS INPUT DELAY, ALARM, DIAGNOSTICS

  • 6ES7422-1FH00-0AA0 Siemens
    $1,187.50 - $2,614.15
    $2,614.15
    $1,187.50 - $2,614.15
    $2,614.15

    6ES7422-1FH00-0AA0 Siemens

    SIMATIC S7-400, SM 422 DIGITAL OUTPUT MODULE, OPTIC. ISOLATED, 16 DO, 120/230V AC, 2A