PLC-RSC- 12DC/21 PLC-RSC- 24DC/21 PLC-RSC- 24DC/21-21 PLC-RSC- 24DC/21-21/EX PLC-RSC- 24DC/21-21AU PLC-RSC- 24DC/21AU PLC-RSC- 24UC/21-21 PLC-RSC- 24UC/21AU/MS PLC-RSC- 48DC/21 PLC-RSC- 48DC/21-21