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Eaton Premium+ E57 Series Inductive Proximity Sensor, Stainless Steel, Shielded
The Eaton Premium+ E57 Series is a shielded inductive proximity sensor built in a 303 stainless steel enclosure for demanding industrial environments. Featuring a 2-wire AC, NO (normally open) contact configuration rated 250 mA at 250V and an input voltage range of 20-250V, this sensor delivers dependable object detection with <3% sensing range accuracy. A 360° viewable LED indicator, PVC-jacketed cable, and multiple NEMA and IP environmental ratings make it well-suited for washdown and harsh-duty applications.
Key Features
- Durable Construction: 303 stainless steel enclosure resists corrosion in harsh and washdown environments.
- Shielded Actuator: Shielded sensing face allows flush mounting in metal without affecting detection range.
- 2-Wire AC, NO Configuration: Simple 2-wire AC normally-open contact configuration for straightforward integration.
- Input Voltage: Operates across a 20-250V input voltage range for broad application flexibility.
- Contact Rating: Rated 250 mA at 250V for reliable switching performance.
- Sensing Accuracy: <3% sensing range accuracy for consistent, repeatable detection.
- 360° Viewable LED: Full-circle LED indicator provides clear status visibility from any angle.
- Cable Type: Polyvinyl Chloride (PVC) cable jacket for flexible, durable field wiring.
Certifications & Compliance
- CE Marked
- NEMA 4, NEMA 4X, NEMA 6, NEMA 6P, NEMA 12, NEMA 13 Rated
- IP67 and IP69K Rated
- Suitable for Washdown and Wet-Location Environments
Technical Specifications
- Product Type: Electrical Component
- Accuracy: < 3% sensing range
- Warranty: 1 year
- Series: E57
- Operating Temperature: -13 °F to 158 °F
- Enclosure Material: 303 stainless steel
- Contact Configuration: 2-wire AC, NO
- Input Voltage: 20-250V
Typical Applications
- Industrial Automation and Machine Building
- Conveyor and Material Handling Systems
- Packaging and Process Equipment
- Washdown and Wet-Location Sensing Environments
- Panelboard and Control Cabinet Integration
Why Eaton?
Eaton's Premium+ E57 Series proximity sensors combine a rugged 303 stainless steel enclosure with CE-marked compliance and multiple NEMA and IP environmental ratings, delivering dependable, code-compliant performance for demanding industrial sensing applications. The shielded design and consistent <3% sensing accuracy make it a reliable choice for professionals who need repeatable detection in harsh operating conditions.
Manufacturer Resources
Product Specs
- Product Type:
- Proximity Sensor
- Cord Length:
- 79.2 ft
- Operating Temperature Max:
- 158 °F
- Accuracy:
- < 3% sensing range
- Operating temperature - min:
- -13 °F
- Warranty:
- 1 year
- Contact Configuration:
- 2-wire AC, NO
- Cable Type:
- Polyvinyl Chloride (PVC)
- Enclosure Material:
- 303 stainless steel
- LED indicator:
- 360 ° viewable LED
- Amperage Rating:
- 250 mA
- Actuator function:
- Shielded
- Input Voltage:
- 20-250 V
- Series:
- E57
- Maximum Ac Current:
- 250 mA
- Compliances:
- CE Marked
- Department:
- Electrical
- Product Material:
- Stainless Steel
- Voltage Rating:
- 20-250V
- Listing:
- CE Marked
- Standards:
- NEMA 4X
- Product Group:
- Wiring Devices
- Product Subgroup:
- Switches
Eaton E57LAL18A2 – Frequently Asked Questions
1) Can the Eaton E57 shielded proximity sensor be mounted flush in a metal machine frame?
Yes. The E57 here has a shielded actuator face, which means the sensing field is concentrated out the front and the barrel can be embedded flush in steel without the surrounding metal triggering it or shortening the range. If you need to sense from a distance with the sensor standing proud of the mounting surface, that is what an unshielded version is for.
2) Will the Eaton E57 stainless proximity sensor hold up to daily caustic washdown on food processing equipment?
That is what the 303 stainless steel housing is for. It carries NEMA 4, 4X, 6, 6P, 12 and 13 ratings plus IP67 and IP69K, and IP69K is the high pressure, high temperature spray rating washdown lines are specified to. Operating range runs -13 F to 158 F, so cold rooms and warm process areas are both inside the window.
3) Is the Eaton E57 proximity sensor a 2-wire AC device, and can I wire it straight into an AC relay or contactor coil?
It is a 2-wire AC normally open device, so it wires in series with the load the way a mechanical limit switch would. Switching capacity is 250 mA at up to 250V, which covers a typical control relay or small contactor coil but not a motor or a solenoid drawing more than that. Check the coil inrush against the 250 mA ceiling before you commit.
4) Does the Eaton E57 sensor work on both 120V and 240V control circuits?
Yes, the operating window is 20 to 250V, so 120V and 240V AC control circuits are both covered by the same part. That range is also why one sensor can be standardized across mixed machine lines instead of stocking separate voltage versions.
5) What is the difference between the E57LAL18A2 and E57LAL30A2 proximity sensors?
Both are Premium+ E57 shielded stainless barrel sensors with the same 2-wire AC normally open output. They are ordered under two part numbers, E57LAL18A2 and E57LAL30A2, listed against the 20 volt and 250 volt ends of the supply range. Quote the full part number on the PO so you get the one your panel drawing calls out.
6) Is the Eaton E57 proximity sensor acceptable for machinery being built for export to Europe?
It is CE marked, which is the mark a machine builder needs on components going into equipment destined for the European market. NEMA 4X and the IP67/IP69K ratings cover the enclosure side of a wet duty specification.
7) Can a maintenance tech tell if this Eaton sensor is triggering without pulling the machine guard?
The E57 carries a 360 degree viewable LED, so the status ring reads from any approach angle rather than only from directly behind the sensor. On a conveyor frame or a crowded machine base where the sensor is buried between brackets, that is the difference between diagnosing from the aisle and taking the guard off.
8) How repeatable is the Eaton E57 sensor for positioning work on packaging equipment?
Sensing range accuracy is specified at less than 3 percent, which is what you want when the sensor is setting a stop position or counting parts at speed rather than just confirming a guard is closed.
How fast can I get the Eaton E57LAL18A2 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton E57LAL18A2 come with a warranty?
Absolutely. The Eaton E57LAL18A2 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton E57LAL18A2?
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