Winters Instruments 3WPS Industrial Pressure Switch is engineered for dependable pressure control in demanding industrial environments. Featuring a 30 to 1,600 psi operating range, it delivers accurate switching performance for pumps, compressors, HVAC equipment, and process control systems.
Designed with a piston-type sensing element, the 3WPS offers simple self-locking set point adjustment and reliable SPDT snap-action switching. Its anodized aluminum housing and Buna-N wetted parts provide long service life, while optional hermetically sealed contacts offer enhanced reliability for challenging operating conditions.
Key Features
- Piston-type industrial pressure switch
- Pressure range from 30 to 1,600 psi
- SPDT snap-action switch
- Simple self-locking set point adjustment
- Fixed deadband
- Anodized aluminum housing
- Buna-N wetted parts
- Optional hermetically sealed contacts
- ±2% of adjustable range accuracy
- NEMA 4 / IP65 enclosure (NEMA 4X optional)
- CSA approved and PED compliant
- CRN registered (selected models)
- Backed by a 1-year manufacturer’s warranty
Typical Applications
- Pump monitoring
- Compressor systems
- HVAC equipment
- Hydraulic systems
- Industrial automation
- Process control applications
Technical Specifications
| Specification | Details |
|---|---|
| Pressure Range | 30 to 1,600 psi |
| Accuracy | ±2% of Adjustable Range |
| Pressure Connection | 1/4″ NPT Female |
| Electrical Contact | SPDT Snap Action |
| Housing Material | Anodized Aluminum |
| Wetted Parts | Aluminum and Buna-N |
| Enclosure Rating | NEMA 4 / IP65 (NEMA 4X Optional) |
| Operating Temperature | -20°F to 165°F (-29°C to 74°C) |
| Compliance | CSA, PED Compliant, UL Recognized (Switch Only) |
Winters Instruments offers general purpose pressure switches, indutrial pressure switches, low pressure diaphragm pressure switches, differential pressure switches.

Winters Instruments offers high-quality pressure measurement and temperature instrumentation products, including pressure gauges, pressure switches, pressure transmitters, and thermometers. Designed for HVAC and industrial applications, their reliable solutions deliver accurate monitoring, robust performance, easy installation, and long-lasting durability across a wide range of process and environmental conditions.
Alyamitech
Alyamitech an Saudi Arabian distributor company specializing in HVAC products, valves, pumps, industrial instruments and MEP Signs. Company is based in Dammam and Saudi Arabia. Currently, we are official distributor of Winters Instruments Products in Saudi Arabia. We also distrubute products from Flamco Group, Grundfos, Envotec, Mifab, Vimco and other HVAC and precision instrument products. Read more




