Herga’s Vacuum Switch family is designed to deliver ultra-sensitive, repeatable vacuum control across miniature and mid-sized applications.
The range includes the HPS-600-V miniature series for compact OEM designs, and the 6721/6722 medium-sized switches for industrial or process environments.
Each model offers high sensitivity, long mechanical life, and multiple form factors, ensuring maximum flexibility for system integration.
| Function | Model | Pressure Range | Contact Type | Electrical Rating | Mechanical Life | Typical Applications |
|---|---|---|---|---|---|---|
| Miniature OEM vacuum switch | HPS-600-V | 5–964 mbar | SPDT | 3–15A (0.1A gold) / 250V | 10×10⁶ | Compact medical & pneumatic systems |
| Medium-size industrial vacuum switch | 6721 / 6722 | 7.5–670 mbar | SPCO / DPCO | up to 21A / 250V | 1–2×10⁶ | Industrial, HVAC & OEM vacuum control |
The HPS-600-V is a single-pole, double-throw (SPDT) vacuum switch that combines high sensitivity with long operational life — up to 10 million cycles.
It is factory-set or user-adjustable and is available with optional gold contacts for low-current circuits.
Vacuum actuation range: 5 – 964 mbar
Four standard form factors (1–4) for flexible mounting
Contact rating: 3A, 5A, 10A or 15A (standard), 0.1A (gold contact)
Electrical rating: up to 250 VAC
Proof pressure: 1.0 bar (14.7 PSI)
Material: thermoplastic housing, urethane diaphragm
Temperature range: +4°C to +65°C (optional −40°C to +96°C)
Mechanical life: 10 million operations
Medical suction and vacuum systems
Airflow and pressure monitoring
Industrial automation and leak testing
Vacuum-actuated safety interlocks
OEM instrumentation with compact enclosures
The 6721 (single-pole) and 6722 (double-pole) switches are designed for reliable OEM vacuum control with a wide range of settings and UL-approved configurations.
These switches feature robust mechanical construction and consistent performance across extended service life.
Vacuum range: 7.5 – 670 mbar
Body withstand pressure: up to 2550 mbar
Contact configuration: SPCO (6721) or DPCO (6722)
Electrical rating: up to 21A at 250V AC (2HP)
Diaphragm: Neoprene (other materials available)
Operating temperature: −5°C to +70°C
Mechanical life: up to 2 million cycles
Body material: thermoplastic with brass spout options
Mounting: back or side entry spouts (Ø4 mm or 1/8” BSP/NPT)
UL 508 approval (specific models)
Industrial vacuum control and monitoring
Water, gas, and hydraulic systems
Air handling and HVAC automation
Medical and laboratory vacuum instruments
Safety systems and OEM integration
The Herga Vacuum Switch family provides high precision, safety, and reliability across multiple industries.
The HPS-600-V offers compact sensitivity for miniature OEM assemblies, while the 6721/6722 range delivers durable performance for industrial and process control.
Represented in Israel by Amironic Ltd., these switches form the backbone of many pneumatic and medical systems requiring dependable vacuum actuation.
