The modular structure
corresponds to the highest mechanical
and electrical standards.
Type FRH has a visible isolating distance
and regardless of the position,
can be vertically or horizontally welded
or screwed into the busbar system.
The isolator has incoming and outgoing
aluminium contact blocks or copper contact blocks
which are provided for welding or screwing
to the existing busbar system. An additional
wall support is not necessary. The isolator
is supported by the busbar package. Shifts to
the busbars are compensated in three directions.
A flexible spring adjustment system ensures a secure
electrical and mechanical contact and the silver
plated main contacts ensure a low voltage drop.
FRH types can be supplied
in all needed versions
• Manual /motor pneumatic
• Remote drive /emergency drive
• Panic switch function
• Auxiliary switch for internal and external control
• Locking systems: mechanical or electrical
• Terminal box: local / or remote control box
• Temperature monitoring
Technical data Standard units
max. nominal current 400 kA
max. nominal voltage 3000 V
Peak short circuit current 10x nominal current 1 s
Insulation voltage 5000 V DC
max. ambient temperature 60°C
max. temperatur rise max. ambient temp. +40°C
Operating time ON OFF motor less 20s/pneumatic less 1s
Traversing in (x/y/z) direction ± 20mm
mechanical lifespan 5000 operations
TYPE FRH
DC High current isolator FRH
5 kA · 400 kA · single-doublepole
for currentless switching in DC systems
VDE 0110 Group C · EN 60947-3 · IEC 60077-1
FLOHE DC High current Isolator FRH is universally as…
• FRH‐AA
Aluminium welded version
• FRH‐CC
Copper bolted version
• FRH‐AC
Combination Al/Cu
• FRH‐MO Mobile for graphite plants