Description
ABB YPP110A Pressure Switch – Reliable Process Protection for Industrial Systems
If you’re working in oil & gas, chemical processing, or power generation, the Yokogawa YPP110A is one of those quiet workhorses that keeps things running safely. From my experience, it’s not flashy—but it’s built to last, with solid-state reliability and a design that handles tough environments without blinking.
Key Features
- Durable metal housing – Typically used in high-vibration zones like compressor stations, where plastic housings would fail prematurely.
- Adjustable setpoint range (0.01–10 MPa) – Gives flexibility across multiple pressure monitoring tasks without needing different models.
- SPDT relay output – One thing I appreciate is how cleanly it interfaces with legacy PLCs and alarm systems—no extra signal conditioning needed.
- IP66-rated enclosure – You might notice that even after months outdoors in coastal plants, moisture ingress isn’t an issue.
- Field-calibratable mechanism – Saves downtime; techs can tweak settings on-site instead of pulling it out for bench testing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand / Model | ABB / YPP110A |
| HS Code | 9032.89.6040 |
| Power Requirements | 24 VDC ±10% (typical), low power draw helps reduce control cabinet heat buildup |
| Dimensions & Weight | Approx. 95 × 60 × 130 mm, 0.8 kg — compact enough for tight panel spaces |
| Operating Temperature | -20°C to +70°C — performs reliably in both cold storage facilities and hot process areas |
| Signal Input/Output Types | Pressure input via NPT 1/4″ port; SPDT relay contact output rated at 5 A resistive load |
| Communication Interfaces | None — purely electromechanical switching function; avoids complexity and firmware issues |
| Installation Method | DIN rail mountable with optional bracket or direct panel mounting using provided flange |
Application Fields
The YPP110A typically shows up in safety-critical loops—think pump overpressure protection, boiler interlocks, or air compressor shutdown circuits. In many cases, it’s specified as part of SIL 2-compliant systems when paired with proper redundancy. It’s also common in water treatment plants where consistent trip points prevent membrane damage from sudden surges.
Advantages & Value
Procurement teams tend to favor this model because it balances cost and longevity. While some cheaper switches may save a few dollars upfront, they often drift over time or fail under thermal cycling. The YPP110A seems to hold calibration longer, reducing spurious trips and maintenance callbacks. Plus, since Yokogawa still supports it with spare parts and documentation, long-term availability isn’t a concern—at least not yet.
Installation & Maintenance
Mount it in a standard 35 mm DIN rail cabinet—just make sure there’s adequate airflow around the unit if ambient temps run near the upper limit. Avoid direct sunlight exposure on outdoor enclosures; we’ve seen premature aging of seals in tropical installations. Wiring should use 1.5 mm² stranded copper with ferrules for vibration resistance. For maintenance, check contacts annually if used in frequent cycling applications, and verify setpoint every 12 months with a calibrated test gauge. No firmware updates required—it doesn’t have any.
Quality & Certifications
Certified to CE and UL standards, compliant with RoHS directives. Meets EN 60947-5-1 for low-voltage switchgear. Factory warranty covers defects in materials and workmanship for 365 days—fairly standard, but they do honor claims without hassle if documentation is complete.
Order Placement & Guarantees
- Warranty: 365 days from date of delivery
- Delivery Time: 1 week for in-stock units; no more than one month at the latest for backorders
- Payment Terms: 50% advance payment, balance due before shipment
- Shipping Options: FedEx, UPS, or DHL express depending on destination and urgency
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