Omron E2A-M12KS04-M3-C1 Proximity Sensor
Omron E2A-M12KS04-M3-C1 features an M12 cylindrical shielded body with a 4 mm inductive sensing distance, 0 to 3.2 mm setting range, and short-body construction. It provides DC 3-wire NPN NO output through a 4-pin M8 connector and operates from 12 to 24 VDC. Response frequency is 1,000 Hz, while control output is rated 200 mA max. at 32 VDC max. with a 2 V max. voltage drop. A yellow LED indicates operation, with output reverse-polarity, power-source reverse-polarity, surge, and short-circuit protection included. The E2A-M12KS04-M3-C1 is part of the shielded NPN proximity sensor range available through Omron industrial automation products.

| Brand | Omron |
| Product | Proximity Sensors |
| Model Number | E2A-M12KS04-M3-C1 |
Omron E2A-M12KS04-M3-C1 Proximity Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensor | Inductive |
| Housing Shape | Cylindrical |
| Size | M12 |
| Mounting type | Shielded |
| Sensing Distance | 4 mm |
| Setting Distance | 0 to 3.2 mm |
| Output configuration | DC, 3-wire, NPN |
| Operation Mode | NO |
| Body Length | Short body |
| Connection Method | M8 connector (4-pin) |
| Response Frequency | 1,000 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. 35 g |
The Omron E2A-M12KS04-M3-C1 Proximity Sensor uses an M12 cylindrical shielded inductive sensing body with a 4 mm sensing distance, 0 to 3.2 mm setting range, and short-body construction. It provides DC 3-wire NPN NO output through a 4-pin M8 connector and operates from 12 to 24 VDC. Response frequency is 1,000 Hz, while control output is rated 200 mA max. at 32 VDC max. with a 2 V max. voltage drop. A yellow LED indicates operation, with output reverse-polarity, power-source reverse-polarity, surge suppression, and short-circuit protection specified. The shielded format and NPN output suit Omron M12 proximity sensor applications requiring normally open switching near surrounding metal.
Operating conditions for the E2A-M12KS04-M3-C1 cover -40 to 70°C, while storage extends from -40 to 85°C. IP67 according to IEC 60529, IP69K according to DIN 40050, and EMC according to EN60947-5-2 are listed. Brass-nickel-plated or stainless-steel housing options and PBT components are included in the construction data. The short body reduces rear installation depth, while shielded sensing supports closer mounting to metal structures. Its 4-pin M8 connector enables detachable cabling during maintenance. For another E2A sensor with NC operation and a 3-pin M8 connector, see E2A-M12LS04-M5-C2.


