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ELR-7
The is
ELR-7an earth leakage
protection device ,which maintaining its ample scope of settings, both for
current and time delay, it has been built in a flush mounting enclosure DIN
48x48mm with a reduced depth of 72mm, including wiring terminals. This allows to
reduce the overall dimensions to a minimum, in those applications in which
the space is critical, like in MCC’s. The present ELR, so
as the others of the ELR’s families,has a built-in filter, at the input
circuits, which brings it practically immune to external distortions. It is possible to
program the tripping current (25mA ÷25 A), the tripping time delay (0,02 ÷ 5
seg.,) and the working mode of the reset (automatic or manual), at its ront
plate. The ELR-7 has a
micro switch to select the working mode of the end relay, normally
de-energized, whilst at rest (no tripped condition) or normally energized (
failsafe). On top of the above,
it also has 2 change-over separated contacts and a transparent front cover
for protection. Its draw-out wiring terminals rends it very easy to install. |
