Littelfuse D0400 Series - Manual

Short Form Catalogue
Arc-fault
Protection System
Protection of Switchboards
• Improve personnel safety.
• Minimize production down
time.
• Reduce damage to material
and the cost of repair or
replacement.
Arcing faults in switchboards can cause
severe damage against material as well as
personnel.
The main issue is that no two arcing are the
same, and it is therefore very difficult to
know in advance how to prevent them.
Whenever arcing occurs the pressure gene-
rated by the rapid increase in temperature
is strong enough to break off cabinet doors.
Further the light of the arcing, ultraviolet,
and infrared, is dangerous for personnel, eyes
and skin.
All of the above points should be taken into
consideration in the Total Cost of Owner-
ship, TCO, of a switchboard, and by using
the SELCO Arc Detecting Relays you will be
able to reduce these costs and eliminate the
points listed.