Series 20 D. Pressure switches for all-fluid technique Port sizes G 1 /4 and G 1 /2

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1 Series 0 D Pressure switches for all-fluid technique Port sizes and Microswitch with gold-plated contacts (silver plated for outdoor variants) Plug-in connection to DIN 4650 Technical Data Fluid: Neutral and aggressive gases and liquids Mounting: Optional Port Size: G/4, G/ male, /4 NPT, / NPT male Operating Pressure: - to 00 bar Ambient Temperature: -5 C to +80 C (standard) -40 C to +80 C (outdoor) Operating Viscosity: Max. 000mm /s Fluid Temperature: -0 C to +00 C Maximum Temperature at Switching Element: +80 C Sealing: > 0-7 mbar.i.s - Repeatability: ±% of final value (referred to pressure control) Degree of Protection: IP65 Materials: Housing aluminium die cast (standard) aluminium die cast, tin plated (outdoor) Sensor see table overleaf Ordering Information To order, quote model number from table overleaf, e.g. for a pressure switch with a set point of 4 bar, fixed hysteresis, G/ male connection suitable for demineralised water in an outdoor location, order part number VH 86. 4/98 to amend, without notice, the specifications given in this document. N/**

2 General Information Selecting a Series 0 D Pressure switch The complete catalogue number consists of 7 digits: VH8 H XX YY = fixed hysteresis 0 = adjustable hysteresis Pressure range codes (XX) for VH8 models XX Code Pressure Range Over Pressure Hysteresis Values for Sensor Options Hysteresis Values for Sensor Options Codes 00, 0, 0 and Codes and 4 Lower Range (bar) Upper Range (bar) Lower Range (bar) Upper Range (bar) ,0 0, 0,0 0, , 0, 0,07 0,0 09 -,5 0 0,5 0,0 0,09 0, 0,05 0 0,07 0,0 0,07 0,08 0,,5 0 0,0 0, 0,09 0,0 4 0, ,5 0,0 0,0 0, 5 0, ,7 0,5 0,0 0,5 6 0, ,5 0,50 0,0 0, ,75 0,95 0,70 0, ,85,0 0,70 0,90 9* ,0,00,0,00 0* ,50 5,00,00 7,00 Pressure range codes (XX) for VH80 models XX Code Pressure Range Over Pressure Hysteresis Values for Sensor Options Hysteresis Values for Sensor Options Codes 00, 0, 0 and Codes and 4 Lower Range (bar) Upper Range (bar) Lower Range (bar) Upper Range (bar) Minimum Maximum Minimum Maximum , 0, 0,70 0,0 0,4 0, , 0,4,00 0, 0,5, ,5 0 0,7 0,0,50 0,4 0,5,50 0,05 0 0,08 0, 0,70 0,5 0,6 0,70 0,,5 0 0, 0,5,00 0,0 0,5,00 4 0, ,0 0,40, ,75,50 5 0, ,5 0,50 5,00 0,75 0,95 5,00 6 0, ,40 0,80 8,00 0,80,50 8, ,80,0,00,50,00, ,00,50 0,00,80,80 0,00 9* ,00,00 0,00,0,50 0,00 0* ,50 7,00 55,00 4,00 9,00 55,00 Sensor variation codes (YY) for all models YY Code Material Electrical Connection Fluid Connection Design 00 Brass/st.st.4404/tin DIN 4650 G/4 female - 0 Brass/st.st.4404/tin / NPT /4 NPT female - * Not available with sensor options 00 and 0 St.st. = Stainless steel 0 St.st..405/.4404 DIN 4650 G/ male - St.st..405/.4404 PG 6 G/ male Outdoor St.st..405/.4404 / NPT / NPT male - 4 St.st..405/.4404 / NPT / NPT male Outdoor N/** to amend, without notice, the specifications given in this document. 4/98

3 General Dimensions 5,5 4,5 04 Accessories Connectors (black) with light indicator -pin with protective conductor Connection acc. to DIN 4650 A Optionally available for DC or AC With filament lamp to 8V Part No. VH With glow lamp 90 to 0V Part No. VH With glow lamp 80 to 40V Part No. VH pin connector (black) with grounded conductor Interface acc. to DIN 4650 A Part No. VH ,,5 7, M4x0 Wiring directions for pressure switch with pilot lamp The pilot lamp shows the switching position of the connected pressure switch. 4 4 * 4 4 * Mountings Two brackets and four screws.40 (AISI 04) Part No. VH Part No. VH , Pressure switch with terminal plate Socket Light indicator, optionally suitable for NC contact () or NO contact () 4 * Special lead (Mp or -) required 8 4/98 to amend, without notice, the specifications given in this document. N/**

4 Accessories Damping Chambers Brass/.40 (AISI 04) Part No. VH Part No. VH (AISI 04) Part No. VH SW SW Ø,5 Ø6 5 Water trap pipes to DIN 68 G/ U-Style.457 (AISI 6Ti) Part No. VH G/ U-Style Part No. VH G/ Circular.457 (AISI 6Ti) Part No. VH 0687 G/ Circular Part No. VH N/** to amend, without notice, the specifications given in this document. 4/98

5 Reducing nipple for pressure connection G/4 male to G/4 male.404 (AISI 40 F) Part No. VH SW 4 7 G/4 male to /4 NPT female Brass Part No. VH ,5 G/4 male to G/ male.404 (AISI 40 F) Part No. VH (AISI 6 Ti) Part No. VH SW 4 G/4 male to / NPT male.405 (AISI 0/04 S) Part No. VH Part No G/4 male to G/8 female Part No. VH G/ female to / NPT male.405 (AISI 0/04 S) Part No. VH ,5 SW 7 Ø,5,5 4,5,5-4 NPT / NPT Shut-off valve to DIN 670 G/ Brass Part No. VH (AISI 0/04 S) Part No. VH Ø6 Shut-off valve to DIN 67 with test plug G/ Brass Part No. VH (AISI 0/04 S) Part No. VH Ø6 0 SW 7 0 SW /98 to amend, without notice, the specifications given in this document. N/**

6 Electrical connections Connector type DIN 4650 Connector type PG 6 SW 0 Ø4,5 9,, 4 Breaking capacity Change-over switch with gold plated contacts Load Level Current Load Umin Maximum permissable continuous Current Imax (A) at U (V) Service Life (V) Electrical at Imax Mechanical at I 0 Normal* AC Resistive x e.g. contractors, solenoids AC Inductive cos 0,7 DC Resistive 5, 0,8 0,4 - DC Inductive 0,5 0,5 0,05 - L/R 0ms Low ** AC Resistive 5 0,4 0, 0,7 0,08 0,04 x e.g. electronic circuits DC Inductive 5 0, 0, L/R 0ms Number of switchings: 0/min. Temperature: +0 C Spark quenching with diode at I/DC and inductive load: Imax =,5 x Imax of table Imax = (ma) Creeping and air distances correspond to Insulation Group B of VDE Regulation 00 (except contact clearance of micro-switch) * Gold coating not required (would be destroyed). Maximum permissable starting current (approx. 0ms) I/AC ON = 5A. ** Gold coating required (will remain intact) Lower critical voltage ensuring a sufficient contact reliability. Smaller voltages are permissable under favourable conditions (contact coating free of foreign substances) reduction of the respective switching current I by 50% approximately doubles service life of contacts Warning These products are intended for use in industrial systems only. Do not use these products where pressures and temperatures can exceed those listed under Technical Data. Before using these products with fluids other than those specified, for non-industrial applications, life-support systems, or other applications not within published specifications, consult Norgren. Through misuse, age, or malfunction, components used in fluid power systems can fail in various modes. The system designer is warned to consider the failure modes of all component parts used in N/** to amend, without notice, the specifications given in this document. 4/98