Metrix 5550 Installation Manual

5550 & 5550G MECHANICAL VIBRATION SWITCHES
Hazardous Area Installaon Manual
DOC# M8905 • REV R (May 2016)
1180
1180
MODEL 5550
MODEL 5550G
Before proceeding to wire and install the
Model 5550 switch, read and thoroughly
understand these instrucons. They are
intended for experienced personnel who
require only basic installaon guidance,
and assume that the 5550 has already
been selected and applied properly for
the machinery at hand. Please contact
Metrix or its local representave for
addional assistance. See also the “Sup-
plamental Informaon” secon of this
manual for addional technical resources
available free-of-change on our website
at www.metrixvibraon.com
OVERVIEW
The Model 5550 Mechanical Vibraon
Switch oers basic protecon against gross
changes in structural seismic acceleraon.
Its operang mechanism is purely mechani-
cal and consists of a tension spring aached
to a pivong plate on an over-center
fulcrum – magnets are not employed.
Normally, this plate is in an untripped posi-
on. However, in the presence of sucient
seismic acceleraon (whether vibratory or
impact), the trip plate will pivot beyond this
over-center posion, snapping to a stable
tripped posion where it contacts an inter-
nal microswitch relay, changing the state

Metrix 5550 Specifications

General

Brand	Metrix
Model	5550
Category	Switch
Language	English