Standard:
DIN EN 60947-5-6 VDE 0660-212:2000-12Low-voltage switchgear and controlgear Control circuit devices and switching elements DC interface for proximity sensors and switching amplifiers (NAMUR) |
Standard
withdrawn: DIN EN 50227 VDE 0660-212:1998-06Low-voltage switchgear and controlgear Control circuit devices and switching elements proximity sensors, d.c. interface for proximity sensord and switching amplifiers (NAMUR) |