10
The enclosure is labeled with applicable safety agency ratings for
hazardous area installation. Since the switch is of the mechanical
contact type, it can never qualify as non-sparking (non-incendive, or
“M”)
for occasional and short-term hazardous area use. Protection
must be provided by the enclosure.
In North America installations, the external supplemental ground is not
to be used. Rigid metal conduit (RMC) will act as the supplementary
ground.
If equipped with an optional pressure switch (shown in LD FIG 4), install electrical
wiring and conduit in accordance with local electrical codes.
The PULSAlarm® switch is rated as follows:
Voltage
115 VAC
Phase
Single
Load
1.0 Amp (Resistive)
Contacts
NO/NC (SPDT)
Connection
Flying Leads,
20AWG
Max. Press.
3000PSI
Electrical Connections
The switch is the SPDT (single pole, double throw) type and can therefore be setup to
either open or to close upon detection of diaphragm leak condition. Contacts or wires
are identified as follows:
Normally Open (NO)
Wire color WHITE
Normally Closed (NC)
Wire color RED
Common (Com)
Wire color BLACK
Содержание PULSAlarm Pulsa Series
Страница 17: ...18...
