6742-30 HERGA, 6742-30 Datasheet - Page 7

• Manufacturer Part Number: 6742-30
• Description: PRESSURE SWITCH
• Manufacturer: HERGA

Specifications of 6742-30

• Connection Size: 0.125"
• Contact Configuration: DPCO
• Contact Current Ac Max: 21A
• Contact Voltage Ac Max: 250V
• External Depth: 43mm
• External Diameter: 43mm
• External Length / Height: 58mm
• External Width: 40mm

6761 & 6763 ~ Low Air Pressure Vacuum
Switches (slow make contacts)
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.
1999
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.
Printed Circuit Board Mounting Switches
Model No
Pressure/Vacuum range
Maximum Differential
Pressure/Vacuum Range
Body Withstand Pressure
Air Bleed Version
Flow Rate Litre / Min (with air bleed)
Pressure Connection
Connecting Tube Reference
Temperature Range
Electrical Data
Switch
Contact Rating Maximum
UL
Dry Switching Maximum Recommended Current
Body
Diaphragm
Contacts
Mechanical Life
Weight (grams)
Benefits
A range of small switches designed for direct
mounting onto printed circuit boards
UL versions available
Various spout orientations available
Double diaphragm versions available upon request
FOR FURTHER INFORMATION TEL: [phone] FAX: [phone]
Maximum
Minimum
6761 (Vacuum)
150mm (6 ins) Wg
670 millibar (9.8) PSI
Approximately 0.06 ins WG
Adjustable variants
2.7 Bar (40) PSI
Available upon request
8 - 30cc/Min @ 31 ins WG
4mm Ø spout for side and back entry
2mm Ø spout for back entry only
Lower spout ‘V’ vacuum
4mm spout = 2311-01 or 2311-08
2mm spout = 2311-03
-10˚C to 85˚C (Flow Solder 220˚C for 5 Sec)
Single Pole Normally Open
0.5A RES 250V ac (Silver contacts)
50mA RES 250V ac
(Maximum ratings may not be achieved at low pressure settings)
10mA 24V dc (UL)
Glass filled polyester
Silicone as standard
Silver or gold plated copper pins
1 x 10
8grms
6
cycles
shown as 270˚
Non Std
Available with base or side tube entry
Silver or gold contact options
Switches can be factory set within specified tolerances
'O' ring seals available for dust and water tight
applications, back entry versions only
150mm (6 ins) Wg
1.0 Bar (14.7) PSI
Approximately 0.06 ins WG
Adjustable variants
2.7 Bar (40) PSI
Available upon request
8 - 30cc/Min @ 31 ins WG
4mm Ø spout for side and back entry
2mm Ø spout for back entry only
Upper spout ‘P’ pressure
4mm spout = 2311-01 or 2311-08
2mm spout = 2311-03
-10˚C to 85˚C (Flow Solder 220˚C for 5 Sec)
Single Pole Normally Open
0.5A RES 250V ac (Silver Contacts)
50mA RES 250V ac
10mA 24V dc (UL)
Glass filled polyester
Silicone as standard
Silver or gold plated copper pins
1 x 10
8grms
6763 (Pressure)
6
cycles
ISSUE 01