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Products/Festo/551377
Festo 551377 Proximity sensor SMT-10M-NS-24V-E-2,5-L-OE
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Festo

551377

Proximity sensor SMT-10M-NS-24V-E-2,5-L-OE

The Festo 551377 is a magneto-resistive industrial component designed for round slots to measure position with a repetition accuracy of 0.2 mm. Conforming to EN 60947-5-2 with RCM, CE, and UKCA markings, this oil-resistant, RoHS compliant, and halogen-free device operates within an ambient temperature range of -40 °C to 70 °C. It features an NPN switching output with an N.O. contact, a maximum switching frequency of 130 Hz, and a maximum DC switching capacity of 2.8 W. Submit the exact part number, quantity, and application requirements for a quote.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer
Festo
Part number
551377
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 551377.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Design
For round slot
Conforms to standard
EN 60947-5-2
Certication
RCM compliance mark
CE marking (see declaration of conformity)
As per EU EMC directive | As per EU RoHS directive
UKCA marking (see declaration of conformity)
To UK instructions for EMC | To UK RoHS instructions
Special features
Oil-resistant
Note on materials
RoHS compliant | Halogen-free
Application note
https://www.festo.com/Drive-Sensor-Overview
Measured variable
Position
Measuring principle
Magneto-resistive
Ambient temperature
-40 °C...70 °C
Repetition accuracy
0.2 mm
Switching output
NPN
Switching element function
N.O. contact
On time
1.3 ms
Switch-off time
4.2 ms...7.3 ms
Max. switching frequency
130 Hz
Max. output current
100 mA
Max. output current in mounting kits
50 mA
Max. switching capacity DC
2.8 W
Max. switching capacity DC in mounting kits
1.5 W
Voltage drop
1.5 V
Residual current
0.15 mA
Short-circuit protection
Yes
Overload protection
Yes
Rated operating voltage DC
24 V
DC operating voltage range
5 V...30 V
Residual ripple
10%
Reverse polarity protection
for all electrical connections

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 551377. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.