IEC Glossary

EN

safety extra-low-voltage (SELV)

electrical circuit in which the voltage cannot exceed a.c. 30 V r.m.s., 42,4 V peak or d.c. 60 V in normal and single-fault condition, including earth faults in other circuits

NOTE An SELV circuit is not connected to protective earth.

TC/SC:	65C	Terms Info Publications
Published in:	IEC 61784-3-8, ed. 1.0 (2010-06)	Terms Info
Reference number:	3.1.1.25
Source:	IEC 61131-2