Omron E2B-M12KN05-WZ-B1 — M12 Inductive, 5 mm, PNP NO, 2 m
SKU: E2B-M12KN05-WZ-B1USD 8.00
M12 brass inductive proximity sensor, 5 mm non-flush (unshielded) sensing distance, PNP normally-open output, pre-wired 2 m PVC cable. IP67, 10-30 VDC, 200 mA max load. Standard target 12×12×1 mm mild steel.
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Product Overview
The E2B-M12KN05-WZ-B1 is the M12 brass-body, 5 mm non-flush (unshielded) inductive proximity sensor with PNP normally-open output and a 2 m pre-wired PVC cable. The E2B family is Omron's cost-optimized general-purpose inductive line — the right pick when you need reliable metal detection in a non-corrosive environment and the application does not require the premium E2E-series stainless-steel housing. The brass-nickel-plated barrel is IP67-rated for washdown environments when the cable gland is properly sealed, and the PBT sensing face handles oils and coolants typical of machine-tool and material-handling applications.
Where the E2B-M12KN05-WZ-B1 fits in the E2B family
The E2B family splits along five axes: body size (M8 / M12 / M18 / M30), mount type (S = shielded / flush, N = non-shielded / non-flush), sensing distance (1-30 mm depending on body size), output type (B = PNP / C = NPN, 1 = NO / 2 = NC), and connection method (M1 = M12 connector, WZ = pre-wired PVC 2 m, WP = pre-wired PVC shorter length, WR = pre-wired robotic PUR). The E2B-M12KN05-WZ-B1 (this SKU) sits at the M12 / non-flush / 5 mm / PNP-NO / pre-wired intersection. The shielded sibling is the E2B-M12KS02-WZ-B1 (2 mm shielded).
Wiring, M12 cable pinout, and PNP output configuration
The E2B-M12KN05-WZ-B1 is pre-wired with a 2 m 4-conductor PVC cable (4 mm diameter, 0.3 mm² conductor cross-section, oil-resistant) terminated with stripped-and-tinned leads. Wire colors follow IEC 60947-5-2: brown = +V (10-30 VDC), blue = 0 V (ground), black = output (PNP sourcing — drives positive voltage into the load when target detected), white = not connected on this 3-wire sensor (only used for complementary output on 4-wire sensors).
Sensing distance, target material, and unshielded vs shielded
The 5 mm sensing distance is the nominal value for mild steel (ST37 / SPCC) at 12×12×1 mm target size, per the IEC 60947-5-2 standard test condition. The actual sensing distance varies with target material: stainless steel = 0.85× (4.25 mm), aluminum = 0.5× (2.5 mm), brass = 0.55× (2.75 mm), copper = 0.45× (2.25 mm). For non-ferrous targets in particular, the effective range is significantly less — mount the sensor at 50-60 % of the nominal 5 mm to ensure reliable detection across material variations.
Key Features
- M12 brass-barrel inductive proximity sensor
- 5 mm nominal sensing distance
- PNP normally-open output
- Pre-wired 2 m PVC cable
- 10 to 30 VDC operating voltage
- 200 mA max load current
- 1 kHz response frequency
- IP67 protection rating when cable gland is sealed
- SKU: E2B-M12KN05-WZ-B1
- Series: E2B Inductive Proximity Sensors
- Voltage: 10 TO 30 VDC
- I/O: 1 I/O
Best-Fit Applications
- Pneumatic-cylinder end-of-stroke position feedback on a packaging machine — E2B-M12KN05-WZ-B1 mounted on the cylinder rod-cap, target = magnet-equipped piston ring.
- Part-present detection on a small vibratory feeder bowl — sensor aimed down at the parts in the bowl, detects when.
- Tool-position confirmation on a CNC machining center — multiple E2B-M12KN05-WZ-B1 sensors confirming tool-changer positions with 1 kHz response for high-speed.
- Conveyor transfer-point target detection between two conveyors — sensor mounted in the side frame, target = steel roller bracket or.
Buying Checklist
- Pick E2B-M12KN05-WZ-B1 for M12 brass 5 mm non-flush PNP NO inductive sensor with 2 m pre-wired PVC cable
- Pick E2B-M12KS02-WZ-B1 for shielded version with 2 mm sensing distance — pick if installing in a tight ferrous bracket
- Pick E2B-M12KN05-WZ-B2 for PNP NC output
- Pick E2B-M12KN05-WZ-C1 for NPN NO output
- Pick E2B-M12KN05-M1-B1 for M12 4-pin connector version
- Pick E2E-S05S12-WC-B1 for M5 miniature stainless body 1.2 mm shielded sensor
Technical Specifications
| Model | E2B-M12KN05-WZ-B1 |
|---|---|
| Series | E2B Inductive Proximity Sensors |
| Type | M12 brass-barrel, non-flush (unshielded), 3-wire DC |
| Sensing Distance | 5 mm nominal (with 12×12×1 mm mild steel target) |
| Mounting Type | Non-flush (unshielded, K in suffix = non-flush) |
| Standard Target | 12×12×1 mm mild steel (ST37 / SPCC) |
| Operating Distance | 0 to 4.0 mm (80 % of nominal sensing distance) |
| Repeat Accuracy | ≤ 5 % of sensing distance |
| Output Type | PNP normally-open (sourcing, current source output) |
| Output Suffix Logic | B = PNP, C = NPN; 1 = NO, 2 = NC |
| Operating Voltage | 10 to 30 VDC |
| Current Consumption | 10 mA max (no load) |
| Load Current | 200 mA max |
| Leakage Current | 0.1 mA max (output OFF) |
| Residual Voltage | 2 V max at 200 mA load |