5.x Installation and Environmental Considerations
FOS-01 Operation Manual
Page 7 of 17
5.0 Installation and Environmental Considerations
Fiber Optic Switches shall always be installed in a protective metallic or non-metallic enclosure with a min.
rating of min. IP 54 (NEMA Type 3R or 4x) for outdoor locations and IP52(NEMA Type 12) for indoor locations.
When Fiber Optic Switches are installed in a non-metallic enclosure in hazardous locations, the enclosure
must be made of antistatic material* or it should be covered with a bonded durable conductive coating*. The
enclosure must be grounded or as a minimum must be in direct contact with a metallic structure that is
grounded.
The FOS protective enclosure as described above should also provide mechanical protection as required by
IEC 61010-1 (energy protection level greater than 5J).
*surface resistance <10
9
ohm@50% relative humidity (Ref. IEC 60079-0 section 7.4.2, UL1203 section 33.4)
Single Optical Contact Block Clearance Details:
Enclosure dimensions should be a minimum of:
Min. 28mm
Min. 28mm
Min.
5mm
H
D
W
Min.
30mm
Min.
30mm
Height(H):
57mm,
Width(W):
82mm,
Depth(D):
70mm,
Between(B):
57mm
B
