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Pepperl Fuchs UDC-18GM50-400-3E0-Y204251
Double sheet sensor
- MPN
- UDC-18GM50-400-3E0-Y204251
- Category
- Double Sheet Sensors
Price and lead time confirmed within 1 business day
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- 12-month warranty (new) · 3-month (used/refurbished)
- 30-day returns, no restocking fee on unused parts
- Ships via
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What is the Pepperl Fuchs UDC-18GM50-400-3E0-Y204251?
Ultrasonic system for reliable detection of no, one, or two overlapping sheet materials, preferably papers
Short version
No teach-in required
Function indicators visible from all directions
Insensitive to printing, colors, and shining surfaces
Material weight from 10 g/m2 up to over 2000 g/m2
Very wide material spectrum, finest papers up to thin sheet metals as well as plastic- and metal foils
Very short response time
Programmable
Ultrasonic system for reliable detection of no, one, or two overlapping sheet materials, preferably papers, Short version, No teach-in required, Sensing range: 20 ... 60 mm , optimal distance: 45 mm, Thread mold: M18, Construction type: Cylindrical, thread, Series: UDC-18GM, Operating voltage: 18 ... 30 V DC , ripple 10 %SS, Output type: 3 switch outputs NPN, NO, UL approval: cULus Listed, General Purpose, Class 2 Power Source
Specifications
General specifications
| Order code (Pepperl+Fuchs part number) | 204251 |
| Sensing range | 20 ... 60 mm , optimal distance: 45 mm |
| Transducer frequency | 395 kHz |
| Lifecycle | Active (current Pepperl+Fuchs product) |
Indicators/operating means
| LED green | indication: single sheet detected |
| LED yellow | indication: no sheet detected (Air) |
| LED red | indication: double sheet detected |
Electrical specifications
| Operating voltage | 18 ... 30 V DC , ripple 10 %SS UB |
| No-load supply current | < 50 mA I0 |
| Time delay before availability | < 500 ms tv |
Input
| Input type | Function input 0-level: -UB ... -UB + 1V 1-level: +UB - 1 V ... +UB |
| Pulse length | ≥ 100 ms |
| Impedance | ≥ 4 kΩ |
Output
| Output type | 3 switch outputs NPN, NO |
| Rated operating current | 3 x 100 mA , short-circuit/overload protected Ie |
| Voltage drop | ≤ 3 V Ud |
| Switch-on delay | approx. 1.5 ms ton |
| Switch-off delay | approx. 1.5 ms toff |
| Pulse extension | min. 120 ms programmable |
Compliance with standards and directives
| Standard conformity: Standards | EN IEC 60947-5-2:2020 IEC 60947-5-2:2019 |
Approvals and certificates
| UL approval | cULus Listed, General Purpose, Class 2 Power Source |
| CCC approval | CCC approval / marking not required for products rated ≤36 V |
Ambient conditions
| Ambient temperature | 0 ... 60 °C (32 ... 140 °F) |
| Storage temperature | -40 ... 85 °C (-40 ... 185 °F) |
Mechanical specifications
| Connection type | cable PVC , 2 m |
| Core cross section | 0.14 mm2 |
| Degree of protection | IP67 |
| Material: Housing | nickel plated brass; plastic components: PBT |
| Material: Transducer | epoxy resin/hollow glass sphere mixture; polyurethane foam |
| Mass | 135 g |
| Dimensions: Length | 50 mm |
| Dimensions: Diameter | 18 mm |
General information
| Supplementary information | Switch settings of the external programming adapter: "output load": pull-up "output logic": inv |
Downloads & documentation
Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.
Data sheets & manuals
CAD & dimension drawings
UDC-18GM50-400-3E0-Y204251: frequently asked questions
When can UDC-18GM50-400-3E0-Y204251 be shipped?
UDC-18GM50-400-3E0-Y204251 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up UDC-18GM50-400-3E0-Y204251 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for UDC-18GM50-400-3E0-Y204251 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for UDC-18GM50-400-3E0-Y204251, subject to availability and destination.
More Pepperl Fuchs parts
Pepperl Fuchs UDC-18GM50-400-3E0-Y204251Price and lead time confirmed within 1 business day
Request a Quote