Part of the Omron Inductive Proximity Sensors series — see the full model table, lifecycle status and replacement parts.
Omron E2B-M12KS04-WZ-B1 — M12 Inductive Sensor, 4 mm PNP
SKU: E2B-M12KS04-WZ-B1USD 9.00
Omron E2B-M12KS04-WZ-B1 M12 shielded inductive sensor, 4 mm PNP NO, 2 m cable. In stock, China shipping.
1-Year Warranty
Full manufacturer warranty
Global Shipping
Worldwide delivery available
Genuine Omron
100% authentic product
Ready to Ship
Usually ships within 24h
In Stock
This item is available for immediate shipment from our warehouse.
Contact for pricing, bulk discounts, and shipping
Product Overview
The Omron E2B-M12KS04-WZ-B1 is an M12 shielded inductive proximity sensor with a 4 mm sensing distance, manufactured by Omron Corporation. Hengyixin Automation ships this sensor from our Xiamen warehouse with a 30-day DOA return window and a datasheet PDF included in the box.
It detects ferrous metal at up to 4 mm when flush-mounted in a bracket, and outputs a PNP normally-open signal on three wires. The B1 suffix marks the PNP NO output; the WZ suffix marks the 2 m PVC pre-wired cable (it replaced the older WP cable type). The yellow LED on the housing confirms the output state.
Supply is 10 to 30 VDC, load current 200 mA at 30 VDC max, response frequency 800 Hz. The housing is nickel-plated brass, M12 thread, short barrel, IP67. Operating temperature -25 to +70 C. The E2B-M12KS04-WZ-C1 sibling is the same body with NPN NO; the E2B-M12KS04-M1-B1 2M is the M12 connector version on the same 4 mm shielded body.
Key Features
- E2B-series M12 shielded inductive proximity sensor, 4 mm quasi-flush sensing distance on ferrous ST37 metal
- 3-wire PNP normally-open output (B1 suffix) at 10 to 30 VDC, 200 mA max load, 800 Hz response frequency
- 2 m PVC pre-wired cable (WZ suffix) with reverse-polarity, surge, and short-circuit protection built in
- Short-barrel nickel-plated brass housing, IP67 rated, -25 to +70 C operating, yellow LED action indicator on the body
- SKU: E2B-M12KS04-WZ-B1
- Series: Omron E2B-series M12 inductive proximity sensor
- Voltage: 10 TO 30 VDC
Best-Fit Applications
- End-of-stroke detection on a small pneumatic cylinder with the M12 thread in a standard T-slot mount bracket
- Conveyor position check on a parts feeder where the sensor reads a metal flag and signals the PLC over the 2 m cable
- Spare replacement on a filling machine upgrading the older WP cable to the current WZ cable on the same 4 mm body
Buying Checklist
- Pick the E2B-M12KS04-WZ-B1 for an M12 shielded inductive sensor with 4 mm range, PNP NO output, and a 2 m PVC cable.
- Pick the E2B-M12KS04-WZ-C1 instead when the PLC inputs are NPN and require a sinking sensor at the same 4 mm range.
- Pick the E2B-M12KS04-M1-B1 2M instead when the install needs an M12 4-pin connector instead of a pre-wired cable.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron E2B-series M12 inductive proximity sensor |
| Model / SKU | E2B-M12KS04-WZ-B1 |
| Sensing Distance | 4 mm +/- 10 percent on 12 x 12 x 1 mm ST37 standard target, shielded quasi-flush mount |
| Output Type | PNP normally open (B1 suffix), 3-wire, open collector, load 200 mA at 30 VDC max, residual voltage 2 V max |
| Supply Voltage | 10 to 30 VDC (10 percent ripple p-p), current draw 10 mA max |
| Response Frequency | 800 Hz average (standard target at 1/2 sensing distance, target gap 2x) |
| Cable | 2 m PVC pre-wired, 4 mm outer diameter (WZ suffix), 3-core |
| Housing | Nickel-plated brass body, M12 thread, short barrel (47 mm long with 30 mm thread), PBT sensing face |
| Protection | IP67 per IEC 60529, reverse-polarity / surge / short-circuit protection built in |
| Environment | -25 to +70 C operating and storage (no icing or condensation), 35 to 95 percent humidity |
| Insulation / Dielectric | 50 M ohm min at 500 VDC; 1,000 VAC for 1 minute between current-carrying part and case |
FAQ for E2B-M12KS04-WZ-B1
What is the Omron E2B-M12KS04-WZ-B1 used for?
It is an M12 shielded inductive proximity sensor with a 4 mm sensing distance and a 3-wire PNP normally-open output on a 2 m PVC cable. The sensor detects ferrous metal at close range without contact, typically for end-of-stroke confirmation on cylinders, conveyor position checks, or simple part-presence detection on small machines.
E2B-M12KS04-WZ-B1 vs E2B-M12KS04-WZ-C1 - what is the difference?
Both share the same M12 shielded body, 4 mm sensing range, short barrel, and 2 m PVC cable. The B1 suffix means PNP normally open (current sourcing), and the C1 suffix means NPN normally open (current sinking). Pick the B1 for European-style PNP PLC inputs, and the C1 for Japanese-style NPN PLC inputs.
Does the E2B-M12KS04-WZ-B1 work on stainless steel?
Yes, but the sensing distance is reduced. The E2B datasheet rates the 4 mm range on ST37 mild steel. Stainless steel typically reduces the range by around 20 to 30 percent. For stainless targets, mount the sensor at half the rated distance and verify detection on a sample part.
Is the E2B-M12KS04-WZ-B1 IP67 rated?
Yes. The sensor is IP67 per IEC 60529, which covers temporary immersion in water up to 1 m for 30 minutes. It is also oil and coolant resistant for typical machine-tool and washdown environments. The IP67 rating applies to the housing; the cable entry must be routed to avoid water ingress at the cable gland.
Similar Products
Explore related Omron models often viewed alongside this product.
