Overview
The Eaton E57LAL30A2EA is a Premium+ inductive proximity sensor engineered for industrial automation and motion control. This 30mm straight, unshielded sensor features robust 303 stainless steel construction and delivers reliable ferrous-object detection without physical contact. The E57LAL30A2EA combines compact form factor with advanced sensing technology, making it an excellent choice for panel builders, maintenance teams, and system integrators who require consistent, field-proven performance.
Key Features
- Premium+ rugged stainless steel body with shock-resistant front cap and impact-absorbing potting compound
- 360° viewable dual-color LED indicator for simplified troubleshooting and easy visibility from any angle
- High noise immunity (>20 V/m) prevents electrical noise interference in harsh factory environments
- 2-wire AC operation (20–250V, 250mA rated contact) with normally open (NO) output configuration
- <3% sensing range accuracy with 15mm sensing distance for precise ferrous detection
- IP67/IP69K rated enclosure, NEMA 4/4X/6/6P/12/13 compliant for washdown and extreme environments
- 3-pin dual key micro connector with pigtail cable connection for secure, reliable wiring
Technical Specifications
- Part Number: E57LAL30A2EA
- Series: E57 Premium+
- Housing Diameter: 30mm, straight, non-flush mount
- Shielding: Unshielded
- Body Material: 303 stainless steel
- Sensing Range: 15mm (end sensing position)
- Sensing Accuracy: <3%
- Input Voltage: 20–250V AC, 2-wire
- Output Current Rating: 250mA at 250VAC
- Contact Configuration: 1 NO (normally open)
- Connector Type: 3-pin dual key micro, pigtail
- Operating Temperature: –13 to 158°F (–25 to 70°C)
- Enclosure Rating: IP67, IP69K; NEMA 4/4X/6/6P/12/13
- Dimensions: 2.91 × 1.18 × 1.18 inches (74 × 30 × 30mm)
- Cable Length: Standard 2-meter (6.6 ft) PVC; 5-meter available on request
Typical Applications
The E57LAL30A2EA is widely deployed in:
- Automated assembly lines and motion control systems requiring compact, reliable ferrous detection
- Packaging machinery, conveyors, and material handling equipment in washdown environments
- Food, beverage, and pharmaceutical production where stainless steel durability and hygiene are critical
- Heavy industrial pressing and stamping operations where high noise immunity prevents false signals
- Temperature-extreme applications (–25 to 70°C operating range)
Compatibility & Replacements
Compatible With
- Standard 20–250V AC industrial control circuits and PLC inputs
- 24VDC compatible sourcing (with appropriate power supply)
- Dual key micro connector standard factory connectors and aftermarket adapters
- Eaton E57 sensor families and mixed-brand 30mm cylindrical proximity sensor applications
- IP67/IP69K-rated enclosure and NEMA-rated panel mount systems
Replaces / Drop-In Replacement For
- E57LAL30A2 (shielded variant; note cable and sensing characteristics differ)
- Earlier E57 2-wire AC proximity sensor models in the standard 30mm family
- Generic 30mm stainless steel cylindrical inductive proximity sensors with micro connectors
Works With
- Allen-Bradley ControlLogix and CompactLogix PLC analog and digital input modules
- Siemens S7-1200/1500 and ET 200 I/O stations with 2-wire AC sourcing
- Mitsubishi FX-series, Omron CompoBus, and Schneider Modicon controllers
- Standard industrial 2-wire AC relay and contactor circuits
- ProxView software for output configuration (if required; preset NO from factory)


















