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6702-ABAB-0000 Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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7 / 20 page 6761 & 6763 ~ Low Air Pressure Vacuum Switches (slow make contacts) 1999 FOR FURTHER INFORMATION TEL: +44 (0)1284 701422 FAX: +44 (0)1284 753112 ISSUE 01 As a consequence of our policy of continual improvement, we reserve the right to change without notice any detail in this publication. Please see our Conditions of Sale. Benefits y A range of small switches designed for direct mounting onto printed circuit boards y UL versions available y Various spout orientations available y Double diaphragm versions available upon request y Available with base or side tube entry y Silver or gold contact options y Switches can be factory set within specified tolerances y 'O' ring seals available for dust and water tight applications, back entry versions only Printed Circuit Board Mounting Switches Model No 6761 (Vacuum) 6763 (Pressure) Pressure/Vacuum range Minimum 150mm (6 ins) Wg 150mm (6 ins) Wg Maximum 670 millibar (9.8) PSI 1.0 Bar (14.7) PSI Maximum Differential Approximately 0.06 ins WG Approximately 0.06 ins WG Pressure/Vacuum Range Adjustable variants Adjustable variants Body Withstand Pressure 2.7 Bar (40) PSI 2.7 Bar (40) PSI Air Bleed Version Available upon request Available upon request Flow Rate Litre / Min (with air bleed) 8 - 30cc/Min @ 31 ins WG 8 - 30cc/Min @ 31 ins WG Pressure Connection 4mm Ø spout for side and back entry 4mm Ø spout for side and back entry 2mm Ø spout for back entry only 2mm Ø spout for back entry only Lower spout ‘V’ vacuum Upper spout ‘P’ pressure Connecting Tube Reference 4mm spout = 2311-01 or 2311-08 4mm spout = 2311-01 or 2311-08 2mm spout = 2311-03 2mm spout = 2311-03 Temperature Range -10˚C to 85˚C (Flow Solder 220˚C for 5 Sec) -10˚C to 85˚C (Flow Solder 220˚C for 5 Sec) Electrical Data Switch Single Pole Normally Open Single Pole Normally Open Contact Rating Maximum 0.5A RES 250V ac (Silver contacts) 0.5A RES 250V ac (Silver Contacts) UL 50mA RES 250V ac 50mA RES 250V ac (Maximum ratings may not be achieved at low pressure settings) Dry Switching Maximum Recommended Current 10mA 24V dc (UL) 10mA 24V dc (UL) Body Glass filled polyester Glass filled polyester Diaphragm Silicone as standard Silicone as standard Contacts Silver or gold plated copper pins Silver or gold plated copper pins Mechanical Life 1 x 106 cycles 1 x 106 cycles Weight (grams) 8grms 8grms 6761/6763 Vacuum and Pressure Switch Range A miniature, compact low pressure switch designed for direct fitting by solder pins to printed circuit boards. Both vacuum and pressure ports are provided making the unit ideal for differential switching. Typical applications are indicators, emergency cut-out and alarms, filter and low pressure/vacuum monitoring. The switch is made to order for specific applications, the actual operating pressures or vacuum being set during production. However, final adjustment may be made after installation by the slotted screw in the base. The body construction allows the two ports to be set at any angle to each other. Non Std shown as 270˚ |
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