Overview
The Eaton E57LAL30A2EA is a Premium+ series 2-wire inductive proximity sensor designed for reliable contact-free object detection in industrial automation and motion control applications. This 30mm straight body sensor operates on AC voltage (20–250V), delivering 250mA switching capacity with a <3% sensing range accuracy. The unshielded design and 15mm sensing distance make it suitable for standard mounting positions.
Key Features
- 360° Dual-Color LED: Stainless steel models have 360 deg LEDs with dual-color output for easy diagnostics and simplified troubleshooting from any angle
- Stainless Steel Body: 303 Stainless Steel construction withstands corrosive and washdown environments
- Premium+ Design: Rugged stainless body, shock-resistant front caps and impact absorbing potting compound ensuring the highest quality performance
- High Noise Immunity: High noise immunity of >20 V per meter prevents many problems associated with electrical noise
- Dual Key Micro Connector: 3-pin micro-style connection for secure, compact wiring
- Temperature Range: Operating temperature range of –13 to 158 °F (–25 to 70 °C)
Technical Specifications
- Sensing Method: Inductive
- Output: 1NO (Normally Open)
- Supply Voltage: 20-250V AC
- Rated Current: 250 mA at 250V
- Sensing Distance: 15mm (end sensing position)
- Sensing Accuracy: <3% sensing range
- Housing Diameter: 30mm, straight body
- Mounting: Non-flush
- Shielding: Unshielded
- Connector: 3-pin dual key micro connector with pigtail
- Cable Length: 2 meters (standard)
- Housing Material: 303 Stainless Steel
- Enclosure Rating: NEMA 4/4X/6/6P/12/13/IP67/IP69K
- Dimensions: 2.91 x 1.18 x 1.18 in
Typical Applications
- Packaging machinery and conveyor systems
- Assembly line object detection and part counting
- Bottle fill-level sensing in beverage production
- Motor starter and pump control interlocks
- Washdown and food processing environments requiring corrosion resistance
- Machine guard and safety gate position verification
Compatibility & Replacements
Compatible With
- Standard industrial PLC discrete 24VAC or 120VAC input modules
- General purpose motor starters and contactors with AC coils
- AC-powered industrial control systems and relay logic circuits
- Machine automation platforms requiring 2-wire sensor inputs
Replaces / Drop-In Replacement For
- EATON carries several options for your sensing needs in the E57 2-wire family. The stainless steel models are available in a standard length or short body, while available in AC or AC/DC configurations — verify the specific model suffix (e.g., E57SAL, E57LAL) to confirm exact compatibility
- Other Eaton E57 series 30mm unshielded models with matching voltage and current ratings
Works With
- AC power supplies (20–250V)
- Standard 2-wire AC sensor wiring configurations
- Industrial relay and contactor logic
- PLC analog and discrete input modules with AC-rated contacts
- Eaton sensor mounting accessories and cable extensions
















