reliable mercury relay will operate dependably at 80% of it’s
rated voltage. Its mercury element is hermetically sealed
in an inert gas atmosphere. Cool operation with a maximum
temperature rise 25û C over ambient on the outside surface
of the enclosure. Silent operation with no distracting noise
in work areas.
lightweight steel armature floats on the pool of mercury.
When the control circuit coil is energized, its magnetic field
pulls the armature down into the mercury; the mercury level
rises to contact the stationary molybdenum electrode, thus,
energizing the load circuit.
the control circuit coil de-energized, a heavy-weight steel
armature is pulled by gravity into the mercury pool, raising
the mercury level to contact the upper molybdenum electrode.
When the control is energized, the armature is pulled upward
out of the mercury. The mercury level falls and breaks contact
with the upper electrode, de-energizing the load circuit.
to 150û F (-40û to 65û C).
color-coded lead lead wire with Class A 105û C insulation. Length:
18 inches or 457.2 mm. Color-coded: 10 AWG white, 8 AWG black,
8 AWG red. (Models without a receptacle have an additional yellow
10 AWG wire.)
with two highly reliable metal oxide varistors (MOV) for protection
against line surges.
fuse located for easy access within enclosure.