NV Vacuum Switch

Clark Solutions
NV Vacuum Switch
Set Point Range, 4-30” Hg, Field Adjustable

DESCRIPTION
Model NV is a simple, reliable low cost Vacuum switch that uses a spring loaded diaphragm as the sensing element. A Buna-N diaphragm is standard however a selection of other diaphragm materials are optionally available.

In operation, the diaphragm actuates a snap action electrical switch that insures a positive, instantaneous electrical contact under all operating conditions.

SPECIFICATIONS
Set Point Range - 3-30” Hg (76-762 mm Hg)
Set Point Tolerance - ±2“ Hg or 5% (25 mm Hg)
Max Operating pressure - 250 PSi (17 bar)
Switch Deadband (differential)- 20-40%
Current Rating - 5 A (to 24Vdc, to 240Vac),
    resistive (10 amp contact available as
    well as gold contact for low current
    applica tions, consult us please)
Media Connection - 1/4” NPT
Circuit Form - SPST-NO, SPST-NC, SPDT
Electrical Connections - 18” wire leads, 1/4”
    Spade, Weather Pack, Metri-pack,
    DIN 43650A, 8-32 Terminals
Machined Switch Body - Brass
Diaphragm - Buna-N (consult us for other
    materials)

ORDERING INFORMATION
ORDER NUMBER ABCDEF
EXAMPLE- NV-1ABJWL
EXAMPLE-NV-1BBR25QC

PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS
A=Model	B=Connection	C=Circuit Form	D=Range	E=Set Direction	F=Electrical Connection
NV	1=1/4" NPT	A=SPST-NO	A=3-12" Hg	Rxx=Rising, factory preset, specify switch point	PE=8-32 Terminals
	Consult us for other connections.	B=SPST-NC	B=8-30" Hg	Fxx=Falling, factory preset, specify switch point	WL=Wire Leads, 18"
		C=SPDT		J=Rising Adjustable	QC=1/4" Spade
				J=Rising Adjustable	WP=Weather Pack
				G=Falling Adjustable	MP=Metri-Pack
					HR=DIN 43650A
					EL=1/2" Conduit

ELECTRICAL CONNECTIONS