Overview
The Eaton E57MAL18A2B1 /D1 is a compact, 18 mm shielded inductive proximity sensor designed for 2-wire AC operation across a wide voltage range. This sensor features an E57 series design with straight orientation, shielded housing, 360° viewable LED indicator, mini 3-pin connector, 250 mA at 250V output, <3% sensing range accuracy, PVC jacket, 2-wire AC configuration, and normally-open (NO) contact. The /D1 variant indicates this unit ships with a standard connector type suitable for direct integration into control systems.
Key Features
- Wide voltage range: Operates at 20-250V AC for flexible supply compatibility
- High load current: 250 mA at 250V output capacity
- All-metal detection: Detects both ferrous and non-ferrous metallic objects
- Shielded design: Shielded housing reduces electromagnetic noise interference
- 360° LED visibility: 360° viewable LED indicator for fast troubleshooting and confirmation
- Compact form factor: 18 mm diameter with mini 3-pin connector for space-constrained mounting
Technical Specifications
- Supply voltage: 20-250 VAC, 50/60 Hz
- Output current: 250 mA at 250 VAC
- Sensing distance: <3% accuracy
- Housing diameter: 18 mm
- Cable type: PVC jacket, 2-wire
- Connector type: 3-pin mini connector
- Output logic: 2-wire AC, normally open (NO)
- Shielding: Shielded design
- Orientation: Straight face
- Series: E57 (Premium+ inductive proximity sensor)
Typical Applications
The E57MAL18A2B1 is well suited for:
- Machine tool position sensing and limit detection
- Conveyor system part presence and counting
- Assembly line component verification
- Metal proximity switching in packaging and automation
- Emergency stop and safety interlock circuits
- Process control logic triggers in industrial environments
Compatibility & Replacements
Compatible With
- Allen-Bradley ControlLogix and CompactLogix systems (via discrete I/O or analog input cards)
- Siemens S7-1200, S7-1500, and legacy S7-300 PLCs (direct 24VDC conversion required)
- Omron CP and CJ-series controllers
- Mitsubishi FX and iQ-R series processors
- Standard industrial 2-wire AC control circuits and relay logic systems
Replaces / Drop-In Replacement For
- Eaton E57SAL18A2B1 (unshielded variant, same electrical specs)
- Other E57 18 mm AC-sourced sensors with equivalent mini connector pinout
- Verify compatibility with your system integrator before ordering
Works With
- Standard AC relay control circuits and contactor logic
- Hardwired discrete input modules on any major PLC platform
- Industrial grade control transformers and power supplies rated 20-250VAC
- IEC 60947 compliant 2-wire AC proximity switching applications
