The FESTO 150261 VPEV-1/8 is a compact industrial vacuum switch designed for pneumatic automation systems that require dependable monitoring of vacuum and relative pressure conditions. It belongs to FESTO’s PEV/VPEV pressure and vacuum switch family and is intended for applications where a switching signal must be generated once a defined vacuum level or pressure threshold is reached. According to FESTO’s official product materials, this model is identified as VPEV-1/8, part number 150261, with G1/8 pneumatic connection, and it is classified as a vacuum switch rather than a standard directional valve.
Unlike solenoid valves that actively route compressed air, the VPEV-1/8 performs a different function inside a pneumatic system: it monitors pressure conditions and provides a switching response based on the preset threshold. FESTO states that the measured variable is relative pressure, and the device uses a pneumatic/electrical pressure transducer principle. This makes it suitable for vacuum generation circuits, suction handling systems, packaging equipment, pick-and-place units, and general industrial automation where process confirmation is necessary before the next mechanical step is executed.
A major reason this product remains useful in industrial environments is its mechanical simplicity combined with robust installation characteristics. FESTO lists the housing material as wrought aluminium alloy, while the switch contact material is silver. The unit is designed with a through-hole mounting method and can be installed in any mounting position, which gives machine builders flexibility when integrating it into cramped pneumatic layouts or retrofit assemblies. FESTO also specifies a Type A plug connection in square design to EN 175301-803 / DIN 43650, a familiar industrial connector format that supports straightforward wiring and replacement in established control systems.
For vacuum-related sensing tasks, threshold accuracy and adjustment range matter more than decorative features, and this is where the VPEV-1/8 is practical. FESTO’s official datasheet shows a threshold setting range of -0.95 bar to -0.2 bar, with an overall pressure measuring range and working pressure range of -1 bar to +1.6 bar. In the wider PEV/VPEV series documentation, FESTO also notes that the VPEV vacuum switch can be used as a pressure switch by repositioning the supplied plug screw from the pressure supply port to the vacuum port. That is a useful detail for OEMs and maintenance engineers because it increases flexibility when one hardware platform must support slightly different pneumatic tasks.
Another important specification is product weight. The FESTO 150261 VPEV-1/8 has a product weight of 240 g according to FESTO product data. For a control component of this type, that is a practical figure for logistics, panel planning, spare-parts estimation, and mounting design. While 240 g is not unusually heavy for a metal-housed industrial pressure/vacuum switch, it is substantial enough to indicate that this is a durable mechanical device rather than a lightweight plastic sensor.
From an environmental and compliance standpoint, the VPEV-1/8 is built for real industrial service rather than light-duty consumer use. FESTO specifies compliance with EN 60947-5-1, lists the product as RoHS-compliant, and indicates CCC, CE, and UKCA related markings in the official documentation. FESTO also states that explosion-protection information in the certificate must be observed and references ATEX Zones 1, 2, 21, and 22 in the datasheet. In practical terms, this means the device is documented for use in regulated industrial settings, although actual installation in hazardous areas still depends on the exact certificate conditions and the complete system design.
The operating envelope is another reason this model is widely applicable. FESTO and distributor-linked technical listings show a media temperature range of -20 °C to 80 °C, with degree of protection IP65. That combination supports use in many factory automation environments where dust resistance, splash resistance, and broad ambient compatibility are needed. It is not a washdown-specialized food-grade sensor by default, but it is clearly suitable for conventional machinery, pneumatic cabinets, industrial handling equipment, and automation stations that require robust vacuum monitoring.
Technical Specifications
| Item | Description |
|---|---|
| Brand | FESTO |
| Product Name | Vacuum switch |
| Model | VPEV-1/8 |
| Part Number | 150261 |
| Product Type | Vacuum switch |
| Product Family | PEV / VPEV pressure and vacuum switches |
| Measured Variable | Relative pressure |
| Measurement Method | Pneumatic/electrical pressure transducer |
| Pressure Measuring Range | -1 bar to +1.6 bar |
| Working Pressure | -1 bar to +1.6 bar |
| Threshold Setting Range | -0.95 bar to -0.2 bar |
| Pneumatic Connection | G1/8 |
| Mounting Type | Through-hole mounting |
| Mounting Position | Any |
| Electrical Connection | Type A plug, square design, DIN 43650 / EN 175301-803 |
| Switching Element Function | Changeover switch |
| Max. Switching Output Voltage AC | 250 V |
| Max. Output Current | 5000 mA |
| Degree of Protection | IP65 |
| Housing Material | Wrought aluminium alloy |
| Switch Contact Material | Silver |
| Product Net Weight | 239 g |
| Standard Compliance | EN 60947-5-1 |
| Material Compliance | RoHS-compliant |
以上参数来自 FESTO 官方产品页,官方数据表及系列资料.
Product Features and Advantages
| Feature | Benefit |
|---|---|
| Robust aluminium housing | Better mechanical durability for industrial pneumatic systems |
| Adjustable vacuum threshold | Allows flexible switching point setup for different process requirements |
| G1/8 connection | Easy integration into many common pneumatic circuits |
| Type A industrial plug | Familiar wiring format for maintenance and replacement |
| IP65 protection | Suitable for dusty and splash-prone machine environments |
| 239 g product weight | Solid industrial construction with manageable installation mass |
| Through-hole mounting | Straightforward installation in machine frames and panels |
| Changeover switch output | Useful for control logic, interlocks, and status monitoring |
In real applications, the FESTO 150261 VPEV-1/8 is well suited for vacuum pick-up systems, suction cup monitoring, packaging lines, robot end-of-arm tooling, sorting equipment, and general pneumatic control assemblies. When a machine relies on vacuum to hold, move, or position a workpiece, the switch can help verify that the required vacuum level has actually been achieved. That function improves process consistency and can help prevent dropped parts, incomplete pick cycles, or false machine progression. The device can also support alarm logic, interlocking, and status feedback between the pneumatic side and the electrical control side. These application inferences are consistent with the device type and official switching-pressure function, though the exact suitability still depends on the machine design and control voltage arrangement.
Why Choose FESTO 150261 VPEV-1/8
The main value of the VPEV-1/8 is not novelty but reliability. It is a straightforward industrial vacuum switch with documented pressure range, adjustable threshold, durable metal housing, standard connector format, and recognized FESTO product lineage. For buyers, maintenance teams, and machine builders, this means easier sourcing, easier replacement, and lower risk of selecting an overcomplicated sensor for a basic vacuum-monitoring task. The 239 g product weight, G1/8 connection, and IP65 protection are especially useful practical references when comparing alternatives.
Conclusion
The FESTO 150261 VPEV-1/8 is a durable and industrially relevant vacuum switch intended for pressure/vacuum monitoring in pneumatic automation systems. With a working range of -1 to +1.6 bar, threshold setting range of -0.95 to -0.2 bar, G1/8 connection, IP65 protection, aluminium housing, and 239 g product weight, it fits well into a wide range of machine-building and maintenance scenarios. For users who need a reliable FESTO vacuum switch for automation, handling, and suction-confirmation duties, this model is a sound and practical choice.
