Endress+Hauser PTC31B-5W320 | Ceraphant Pressure Switch with IO-Link
Endress+Hauser PTC31B-5W320 compact pressure switch. Ceramic sensor, 2x PNP switch + IO-Link, 10-30V DC, G1/4 thread, -25 to +100°C, ATEX & UL approved.
Product Overview
The Endress+Hauser PTC31B-5W320 is a compact electronic pressure switch from the Ceraphant PTC31B series. It features a ceramic Ceraphire sensor for gauge/absolute pressure monitoring and is configured with dual PNP transistor outputs and IO-Link communication. Designed for machinery and process applications, it offers high overpressure resistance and easy integration into industrial control systems.
Technical Specifications (Electrical & Performance)
| Parameter | Specification |
| Model | PTC31B-5W320 |
| Function | Pressure Switch / Monitor |
| Sensor Type | Ceramic Ceraphire (Al₂O₃) |
| Pressure Type | Gauge / Absolute |
| Measuring Range | 0 ... 16 bar (0 ... 232 psi) |
| Accuracy | ≤ ±0.3 % of span (Platinum grade) |
| Hysteresis | ≤ 0.1 % of span |
| Outputs | 2x PNP Switch Outputs + IO-Link SIO |
| Supply Voltage | 10 ... 30 V DC |
| Current Consumption | ≤ 25 mA (without load) |
Technical Specifications (Mechanical & Environmental)
| Parameter | Specification |
| Process Connection | G1/4" Male Thread (ISO 228) |
| Electrical Connection | M12 × 1 4-pin Connector |
| Wetted Parts | 316L Stainless Steel, Ceramic Diaphragm |
| Process Temperature | -25 ... +100 °C (-13 ... +212 °F) |
| Ambient Temperature | -20 ... +70 °C (-4 ... +158 °F) |
| Max. Overpressure | 160 bar (2320 psi) |
| Protection Rating | IP65 (Housing) |
| Certifications | ATEX, IECEx, UL, CSA |
Key Features
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Ceramic Sensor Durability: The dry ceramic diaphragm (Ceraphire) is highly resistant to abrasion and corrosion, suitable for aggressive media and vacuum applications.
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IO-Link Smart Functionality: Enables remote parameter setting, device diagnostics, and digital process value readback via the IO-Link interface (SIO mode).
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Dual Switching Logic: Two independent PNP outputs can be configured for window functions, pump control, or alarm thresholds directly from the device.
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High Safety Margin: Withstands up to 160 bar overpressure, providing protection against pressure spikes in compressed air and hydraulic systems.
Applications
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Machine Automation: Pressure monitoring and pump control in packaging, injection molding, and assembly machinery.
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Compressed Air Systems: Leak detection and filter monitoring in industrial air networks.
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Process Monitoring: Level and pressure supervision in chemical and water treatment applications requiring IO-Link integration.
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
