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Illustrative purposes only
6721-40
Pressure Switch, Vacuum, Vacuum, 4mm Spout, 185 mbar, 670 mbar, SPDT, 250 VAC
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: HERGA
- Product type: Pressure Switches
- Pressure Fitting Style:4mm Spout; Operating Pressure Min:185mbar; Operating Pressure Max:670mbar; Contact Configuration:SPDT; Sensor Mounting:Panel / Chassis; Electrical Connection
- SVHC: No SVHC (23-Jan-2024)
- Deadband Max: -
- Deadband Min: -
- Pressure Type: Vacuum
- Product Range: 6721 Series
- Sensor Mounting: Panel / Chassis
- Pressure Port Size: 4mm
- Pressure Port Type: 4mm Spout
- Contact Configuration: SPDT
- Electrical Connection: Quick Connect
- Switching Current Max: 21A
- Switching Voltage Max: 250VAC
- Operating Pressure Max: 670mbar
- Operating Pressure Min: 185mbar
- Pressure Fitting Style: 4mm Spout
- Operating Temperature Max: 70°C
- Operating Temperature Min: -5°C
- Switching Current DC Resistive: 21A
- Switching Voltage DC Resistive: 6V
- Transducer Connection / Termination: Quick Connect
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 32.86 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## **PRODUCT IMAGE** ## **LINE DRAWING** ## **BENEFITS** - - - ## **SPECIFICATIONS** ## **SUITABLE FOR USE WITH THE FOLLOWING MEDIA:** ¢herga ## PRESSURE & VACUUM ## 6721/6722 Vacuum Switch |||Model|Model|Model|Model|No|No||6721-03|6721-03|6721-03|6721-03|||6721-06|6721-06|||||6721-20|6721-20|6721-20|||6721-30|6721-30||||6721-40|6721-40|6721-40| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| ||||||||||||||||||||||||||||||||||| |pHEMT <br>(mbar)|||ISEMES)|||||||TyFi|||75|||||180||||||330||||710|||||||1900| ||||||||||||||||||||||||||||||||||| |||||||||Max|||200|||||380||||||810||||2030|||||||6860| ||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||| ||Body withstand <br>(mbar)||||||pressure||||||||||||||1,725||||||||||||| ||Connecting <br>reference||||tube|||||||||||2311-01|||/2311-08|2311-08||:<br> to suit4mm||F<br> dia.||spout|||||||| ||||||||||||||||||||||||||||||||||| ||Diaphragm||||||||||||||||||||Neoprene||||||||||||| ||Mechanical||||Life||||2 x|10° cycles||||2 x||10° cycles||||1|x 10°||cycles||1 x 10° cycles|||||1|x|10° cycles|| ||||||||||||||||||||||||||||||||||| ||Spring|||||||||||Spring Steel fitted in|||||vacuum cavity, therefore|||||||in contactwith|||the media||||||| ||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||| ||Electrical|||||Data|||||6721-03|||||||||6721-06|||||||6721-20/30/40||||||| ||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||| ||Contact||Configuration||||||||||||||||||~~SPCO~~||||||||||||| ||||||||||||||||||||||||||||||||||| ||Contact Plating||||||||||||||||||||~~Silver~~||||||||||||| ||||||||||||||||||||||||||||||||||| |||Electrical Life||||||||2x10°@ 1A||||||2x10°@6A|||||5x10'@10A|||||2x10°@10A||||1x10*@21A|||| ||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||| ||Electrical Rating||||||||~~Max. ~~||~~Electrical ~~||~~Load~~||||~~Max. ~~|||~~Electrical ~~||~~Load~~||||~~Max. Electrical ~~|||||~~Load~~||| |||||||Voltage<br>(V)|||Resistive<br>(A)|||Inductive<br>(A)||||Resistive<br>(A)||||Inductive<br>(A)|||Motor<br>(Pf0.75)|||Resistive<br>(A)||Inductive<br>(A)|||||Motor<br>(Pf0.75)| ||||||||||||||||||||||||||||||||||| ||AC||||||125||~~3~~||||~~1~~|||~~10~~||||~~3~~|||~~0.5HP~~|||~~21~~||||~~115~~|||~~1HP~~| ||||||||||||||||||||||||||||||||||| ||AC||||||250||~~$3~~||||~~1~~|||~~10~~||||~~$3~~|||~~0.5HP~~|||~~21~~||||~~15~~|||~~2HP~~| ||||||||||||||||||||||||||||||||||| ||DC||||||6||~~$3~~||||~~1~~|||~~10~~||||~~$3~~||||||~~21~~||||~~21~~|||| ||||||||||||||||||||||||||||||||||| ||DC||||||12||~~3}~~||||~~1~~|||~~5)~~||||~~3}~~||||||~~15~~||||~~15~~|||| ||||||||||||||||||||||||||||||||||| ||DC||||||24||~~1~~||||~~0.5~~|||~~5)~~||||~~3}~~||||||~~8~~||||~~7~~|||| ||||||||||||||||||||||||||||||||||| ||DC||||||60||1||||0.5|||1||||0.5||||||1||0.5|||||| ||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||| ||DC||||||110||0.5||||0.2|||0.5||||0.2||||||0.5||0.2|||||| ||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||| ||DC||||||220||0.5||||0.1|||0.25||||0.1||||||0.25||0.1|||||| Issue 01 ©Herga www.herga.co.uk «herga switching & sensing solutions ## PRESSURE & VACUUM ## 6721/6722 Vacuum Switch **==> picture [450 x 151] intentionally omitted <==** **----- Start of picture text -----**<br> 40<br>v 12 46 POSTS & HOLES TO SUIT<br>No4 SELF TAPPING SCREWS<br>YOGI SO) /<br>ESN et oe OO "i<br>\ JAX “ i<br>\e gy, © C )/<br>Ss 7 | c @)) a=<br>Mounting Plate & 2 Screws<br>Non standard tube connection 6050-6000-0001<br>positions for 4 Dia spout<br>**----- End of picture text -----**<br> Issue 01 © Herga www.herga.co.uk
Updated at June 9, 2026
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