6ES5928-3UB11 Refurbished Siemens CPU module

6ED1055-1MB00-0BA1 Refurbished Siemens Expansion module (digital output)

6ES5451-7LA21 Refurbished Siemens Digital output module

6ES7121-1BB00-0AA0 New open box Siemens Digital input module

SIEMENS | 6ES5431-2BA11 | OCASSION | USPP | PLC2DAY Used in stock at PLC2DAY

6ES7321-1BH02-0AA0 SIEMENS, PLC Digital Input Module, 6ES7321-1BH02-0AA0, ......

SIEMENS 6ES5430-7LA11, SIMATIC S5 430 Digital Input Module Floating | ID3008 ...

SIEMENS 6ES7 421-1BL00-0AA0 Digital Input Module Used in stock at PLC2DAY