Metrix 5550 User Manual

Doc# 1231558 • REV C (November 2017) Page 9 of 20
When wiring the device, observe the following:
2.9.1 Do not exceed switch contact rangs listed on the nameplate.
2.9.2 Comply with all applicable electrical codes.
2.9.3 Keep eld wiring away from the moving parts of the trip plate mechanism.
2.9.4 All power must be switched o before opening the enclosure in an explosive
atmosphere.
2.9.5 The switch must be electrically connected by means of a ameproof/dust cable
gland or stopping box cered to IEC60079-0:2011 (EN60079-0:2012), IEC60079-1:2007
(EN60079-1:2007), and IEC600079-31:2008 (EN60079-31:2009).
2.9.6 For ambient temperatures below -10°C, use eld
wiring suitable for the minimum ambient temperature.
2.9.7 Reinstall the cover by rst ensuring the o-ring
is in place and properly seated in the housing’s groove.
Place the cover on the unit and screw ght (model
5550G) or by torqueing the four cover bolts shown in
Figure 11 (model 5550 only) to 6-7 /lbs.
NOTE: It is not recommended
that wiring be connected to the
device unl aer verifying the
factory default setpoint in Secon
4.1 and performing the in-situ setpoint
adjustments in Secon 4.2. This will pre-
vent having to disconnect the wiring and
remove the device from its mounng loca-
on. It will also prevent unwanted trips
while inially adjusng the setpoint.
WARNING: Voltages present at
switch terminals can result in
serious injury or death. Always
de-energize these circuits prior
to installaon or maintenance and use
appropriate lock-out / tag-out proce-
dures where applicable.
CAUTION: If eld wiring is allowed to obstruct the
moving parts of the switch, it may prevent the trip
plate from operang correctly. Machinery protec-
on can be compromised and serious machinery damage
and/or personnel injury may result.
NOM
OPEN
COM
NOM
CLOSED
RESET COIL
CASE
RESET COIL
L(+)
N(-)
GRN
NOM
OPEN
COM
NOM
CLOSED
RESET COIL
CASE
RESET COIL
L(+)
N(-)
GRN
NOM
OPEN
COM
NOM
CLOSED
WIRING DIAGRAM
SPDT DPDT
DPDT CONTACTS AND RESET COIL OPTION
Figure 10: Wiring connecons
Figure 11: 5550 cover bolts locaon
2
1
3
4

Metrix 5550 Specifications

General

Brand	Metrix
Model	5550
Category	Switch
Language	English