Omron E2A-M18KN16-M1-C1 Proximity Sensor
Omron E2A-M18KN16-M1-C1 is a cylindrical M18 unshielded inductive proximity sensor with a 16 mm sensing distance, 0 to 12.8 mm setting distance, and short-body construction. It uses a DC 3-wire NPN output with NO operation through a 4-pin M12 connector and works from 12 to 24 VDC. Response frequency is 400 Hz, while control output is rated 200 mA max. at 32 VDC max. with a 2 V max. voltage drop. Output reverse-polarity, power-source reverse-polarity, surge, and short-circuit protection are specified. The E2A-M18KN16-M1-C1 is part of M18 unshielded proximity sensors from Omron industrial automation products for non-contact machine detection.

| Brand | Omron |
| Product | Proximity Sensors |
| Model Number | E2A-M18KN16-M1-C1 |
Omron E2A-M18KN16-M1-C1 Proximity Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensor | Inductive |
| Housing Shape | Cylindrical |
| Size | M18 |
| Mounting type | Unshielded |
| Sensing Distance | 16 mm |
| Setting Distance | 0 to 12.8 mm |
| Output configuration | DC, 3-wire, NPN |
| Operation Mode | NO |
| Body Length | Short body |
| Connection Method | M12 connector (4-pins) |
| Response Frequency | 400 Hz |
| Power Supply Voltage | 12 to 24 VDC |
| Protection Circuit | Output reverse polarity protection, Power source circuit reverse polarity protection, Surge suppressor, Short-circuit protection |
| Ambient Temperature Range | Operating: −40°C to 70°C, Storage: −40°C to 85°C |
| Degree of Protection | IP67 after IEC 60529, IP69k after DIN 40050, EMC after EN60947-5-2 |
| Control Output | 200 mA max. (32 VDC max.), 2 V max. |
| Indicators | Operation indicator (Yellow LED) |
| Materials | Brass-nickel plated or stainless steel, PBT, Standard cable is PVC dia 4mm. Brass-nickel plated for brass models stainless steel for steel models |
| Weight | Approx. 70 g |
The Omron E2A-M18KN16-M1-C1 Proximity Sensor uses a cylindrical M18 unshielded inductive sensing body with a 16 mm sensing distance, 0 to 12.8 mm setting distance, and short-body construction. It provides a DC 3-wire NPN output with NO operation through a 4-pin M12 connector and operates from 12 to 24 VDC. Response frequency is 400 Hz, while control output is rated 200 mA max. at 32 VDC max. with a 2 V max. voltage drop. A yellow operation LED is provided together with output reverse-polarity protection, power-source reverse-polarity protection, surge suppression, and short-circuit protection.
Operating conditions for the E2A-M18KN16-M1-C1 cover -40 to 70°C, while storage extends from -40 to 85°C. Environmental ratings include IP67 according to IEC 60529, IP69K according to DIN 40050, and EMC according to EN60947-5-2. The short M18 body reduces mounting depth, while the unshielded design provides the stated 16 mm detection range. Its M12 connector supports detachable field wiring during maintenance. Brass-nickel-plated or stainless-steel housing options and PBT components are listed for the E2A construction. For a larger M30 E2A model with 20 mm sensing distance and connector-based NPN switching, see E2A-M30KN20-M1-C3.


