FX1S Series Programmable Controllers
vii
LV D
The following products have shown compliance through direct testing (of the identified
standards below) and design analysis (through the creation of a technical construction file) to
the European Directive for Low Voltage (73/23/EEC) when used as directed by the appropriate
documentation.
Refer to a manual or related material of each product for details concerning products not
included below.
Type : Programmable Controller (Open Type Equipment)
Models : MELSEC FX
1S
 series manufactured
from March 1st, 2000 FX
1S
-
!!
MR-ES/UL
from September 1st, 2000 FX
1S
-
!!
MR-DS
from July 1st, 2001 FX
1S
-
!!
MT-ESS/UL
Where 
!!
 indicates:10,14,20,30
Standard Remark
EN61010-1:2001 Safety requirements for electrical 
equipment for measurement,
control,and laboratory use
- General requirements
The equipment has been assessed as 
a component for fitting in a suitable enclosure 
which meets the requirements of
EN61010-1:2001