Omron E2E-X2D1-M1GJ | Inductive Proximity Switch | M12 · NPN · 2 mm · New Original

Part Number: E2E-X2D1-M1GJ | Alt. Reference: E2EX2D1M1GJZ | Brand: Omron | Condition: New Original OEM

The One-Line Summary

A compact M12 inductive proximity switch with a 2 mm sensing range, NPN normally-open output, IP67 protection, and 500 Hz response — engineered for continuous-duty metal detection in industrial automation.

Quick-Reference Specifications

Parameter	Value
Part Number	E2E-X2D1-M1GJ
Alternate Reference	E2EX2D1M1GJZ
Manufacturer	Omron Corporation
Series	E2E (Cylindrical Inductive Proximity Sensor)
Housing Diameter	M12 × 1 mm thread
Sensing Distance (Sn)	2 mm (standard, iron target)
Output Configuration	NPN, Normally Open (NO)
Supply Voltage	12–24 V DC
Load Current (max.)	200 mA
Leakage Current (OFF)	≤ 0.8 mA
Voltage Drop (ON)	≤ 2.5 V
Response Frequency	500 Hz
Repeatability	≤ 0.02 mm
Indicator	Operation indicator (LED)
Cable	Pre-wired, 2 m PVC cable, 3-wire
Enclosure Protection	IP67 (IEC 60529)
Operating Temperature	−25 °C to +70 °C
Storage Temperature	−40 °C to +85 °C
Material (Housing)	Nickel-plated brass
Standards	IEC 60947-5-2, CE, UL
Condition	New in OEM packaging

Understanding the Part Number

Before ordering a proximity sensor, it helps to know exactly what you are buying. Here is what each segment of E2E-X2D1-M1GJ communicates:

Segment	Meaning
E2E	Omron cylindrical inductive proximity sensor family
X	Standard sensing distance model
2	2 mm nominal sensing distance
D	M12 housing diameter
1	Single output
M1	NPN output type
GJ	Pre-wired 2 m cable, connector variant / suffix

The alternate reference E2EX2D1M1GJZ is the same part number with hyphens removed — commonly seen in older catalogues, ERP systems, and purchase orders. Both designations refer to the identical product.

How Inductive Proximity Sensing Works

Unlike mechanical limit switches that require physical contact, an inductive proximity sensor detects metal objects through electromagnetic induction — with no moving parts and no wear from repeated actuation.

Inside the E2E-X2D1-M1GJ, a ferrite-core coil oscillates at high frequency, generating an alternating electromagnetic field at the active sensing face. When a conductive metal target enters the sensing zone, eddy currents are induced in the target surface. These eddy currents absorb energy from the oscillator, reducing its amplitude. The internal evaluation circuit detects this amplitude reduction and switches the NPN output transistor ON, pulling the output line low (to 0 V).

When the target moves out of the sensing field, the oscillation amplitude recovers and the output transistor switches OFF, returning the output to its open state. The entire switching cycle can repeat at up to 500 Hz — 500 times per second — making this sensor suitable for high-speed detection applications.

What Can It Detect — and What It Cannot

This is one of the most important practical questions when specifying a proximity sensor:

Detectable materials (metals): Iron, mild steel, stainless steel, aluminium, brass, copper — the sensing distance varies by material. The 2 mm nominal distance is specified for a standard iron target (Fe360). Non-ferrous metals (aluminium, brass, copper) have a correction factor and will be detected at a reduced sensing distance.

Not detectable: Plastics, wood, glass, rubber, liquids, paper — these materials do not generate eddy currents and are invisible to an inductive sensor. If you need to detect non-metallic objects, an optical or capacitive proximity sensor is the correct technology.

Five Scenarios Where the E2E-X2D1-M1GJ Is the Right Choice

① Conveyor position confirmation Detecting metal pallets, fixtures, or carriers as they arrive at a workstation. The 2 mm range is ideal for short-gap detection where the sensor can be mounted flush with the conveyor rail and the target passes predictably close.

② Machine tool zero-point detection Confirming the home or reference position of a linear axis or rotary table. The ≤0.02 mm repeatability ensures the machine controller receives a consistent, reproducible signal on every cycle.

③ Gear tooth counting / RPM measurement Mounted adjacent to a toothed wheel or slotted disc, the 500 Hz response frequency allows tooth counting at speeds up to 30,000 RPM on a 1-tooth wheel, or proportionally higher tooth counts at lower speeds.

④ Parts presence detection in assembly fixtures Confirming that a metal component is correctly seated in a jig before the assembly operation is triggered — preventing empty or misloaded cycles.

⑤ Replacement for worn or failed sensors on existing Omron E2E installations The E2E series is one of the most widely deployed proximity sensor families in industrial automation globally. If an existing E2E installation has failed, the E2E-X2D1-M1GJ is a direct replacement that reinstalls without wiring changes.

E2E Series Model Comparison — Finding the Right Variant

The Omron E2E series covers a wide range of housing sizes, sensing distances, output configurations, and connection types. The table below compares common variants around the E2E-X2D1-M1GJ:

Model	Housing	Sensing Distance	Output	Connection
E2E-X2D1-M1GJ	M12	2 mm	NPN NO	Pre-wired 2 m
E2E-X2D2-M1GJ	M12	2 mm	NPN NC	Pre-wired 2 m
E2E-X5D1-M1GJ	M18	5 mm	NPN NO	Pre-wired 2 m
E2E-X10D1-M1GJ	M30	10 mm	NPN NO	Pre-wired 2 m
E2E-X2D1-N	M12	2 mm	NPN NO	Pre-wired 2 m (standard cable)
E2E-X2MY1	M12	2 mm	PNP NO	Pre-wired
E2E-X2D1-M1J	M12	2 mm	NPN NO	M12 connector (no cable)

NPN vs PNP: NPN (also called "sinking") output pulls the output line to 0 V (ground) when active. PNP (also called "sourcing") pulls the output line to supply voltage (e.g. 24 V) when active. Select the output type to match your PLC's digital input card specification. Most Siemens, Mitsubishi, and Omron PLC input modules accept both, but check your specific module datasheet.

Wiring Diagram

The E2E-X2D1-M1GJ is a 3-wire NPN sensor. The three wires are:

Wire Colour	Function
Brown	Supply positive (+V, connect to +12 V or +24 V DC)
Blue	Supply negative (0 V / GND)
Black	Signal output (NPN, switches to 0 V when target detected)

Connect the black output wire to the PLC digital input terminal. Connect a pull-up resistor between the black wire and +V if your PLC input requires it — most modern PLC input modules have internal pull-ups and no external resistor is needed. Always consult your PLC's digital input wiring requirements.

OEM vs Generic — A Practical Comparison

Industrial proximity sensors are frequently offered in low-cost generic versions. For non-critical applications, these may suffice. For production-critical or safety-adjacent applications, the differences are significant:

Attribute	Omron E2E-X2D1-M1GJ (OEM)	Generic / Unbranded
Sensing distance stability over temperature	✅ Characterised and specified	❌ Often uncharacterised
Repeatability	≤ 0.02 mm, verified	❓ Unspecified or claimed
IP67 certification	✅ Tested to IEC 60529	❌ Often IP65 or lower, untested
Response frequency	500 Hz verified	❓ Typically 200–300 Hz claimed
Dimensional accuracy (M12 thread, body length)	✅ OEM dimensional standard	⚠️ Variable — may not fit existing mounting
EMC / CE compliance	✅ CE marked	❌ Rarely certified
Traceability	✅ OEM lot traceability	❌ None
Long-term supply continuity	✅ Omron catalogue part	❌ May be discontinued or substituted

For machine builders supplying CE-marked equipment to European or North American markets, OEM components with documented conformity are the standard requirement.

Ordering & Delivery

✅ New Original Omron — factory-sealed OEM unit, never installed
✅ In Stock — dispatches within 1–3 working days
✅ Global Shipping — DHL / FedEx / UPS with full tracking to all major markets
✅ Volume orders welcome — contact us for multi-unit pricing
✅ 15+ years industrial component supply experience

Frequently Asked Questions

Q1: What is the difference between E2E-X2D1-M1GJ and E2EX2D1M1GJZ? These are two representations of the same part number. E2EX2D1M1GJZ is the hyphen-free version of E2E-X2D1-M1GJ, commonly used in legacy ERP systems and older Omron catalogues. Both refer to the identical product. When searching for this sensor in procurement systems, try both formats to ensure you find the correct listing.

Q2: What does "NPN NO" mean, and do I need NPN or PNP? NPN refers to the transistor output type: when the sensor detects a target, the output transistor connects the signal wire to the negative supply (0 V / GND) — the output "sinks" current. NO (Normally Open) means the output is inactive (open circuit) in the absence of a target, and active (switched to 0 V) when a target is present. Whether you need NPN or PNP depends on your PLC's digital input module. NPN sensors are used with PLC inputs that source current (provide +V to the input terminal). PNP sensors are used with PLC inputs that sink current (provide 0 V to the input terminal). Check your PLC input card datasheet — it will specify NPN (sinking) or PNP (sourcing) sensor compatibility.

Q3: The nominal sensing distance is 2 mm. Will it detect aluminium or stainless steel at the same distance? No. The 2 mm nominal sensing distance is specified for a standard iron/mild steel (Fe360) reference target of defined dimensions. For other metals, a correction factor applies: stainless steel is typically 0.6–0.9× the iron sensing distance, aluminium 0.3–0.5×, and brass 0.3–0.4×. In practice, for an aluminium target, reliable detection at 2 mm cannot be assumed — effective range may be 0.6–1 mm. Always verify sensing distance experimentally with your actual target material before finalising sensor-to-target gap in the machine design.

Q4: Can this sensor be mounted flush with a metal surface (flush mounting)? Yes. The E2E-X2D1-M1GJ is a shielded (flush-mountable) inductive sensor. The metal shield surrounding the coil focuses the sensing field forward and suppresses lateral field leakage, allowing the sensor to be mounted in a metal bracket or housing without the surrounding metal interfering with detection. Unshielded sensors must be mounted with clear space around the body; shielded sensors like this one can be installed flush — the active face level with the surrounding bracket surface.

Q5: What is the maximum switching frequency, and what does 500 Hz mean in practice? 500 Hz means the sensor can complete 500 full detection cycles per second — each cycle comprising one ON switching event and one OFF switching event. This is the maximum rate at which targets can pass the sensor face and be reliably detected as discrete events. At 500 Hz, a target moving at 1 m/s with a target length of 1 mm would produce a signal pulse of approximately 1 ms — well within the sensor's capability. For very small targets at very high speeds, calculate whether the target's dwell time in the sensing zone exceeds the sensor's minimum pulse width before specifying.

Q6: The sensor is IP67 rated. Can it be used in a washdown environment? IP67 means the sensor is rated for temporary immersion in water up to 1 metre depth for up to 30 minutes. For standard industrial washdown (spray cleaning with water), IP67 provides adequate protection. For continuous immersion, high-pressure spray, or chemical washdown with detergents or disinfectants, check whether the cable entry seal and body material are compatible with the specific cleaning agents used. Food and beverage applications may require IP69K-rated sensors for high-pressure hot washdown — in that case, evaluate the E2E-X2D1-M1GJ against Omron's E2EW or E2F series which offer higher ingress protection.

Q7: How do I set the sensing distance? Is there any adjustment? The E2E-X2D1-M1GJ has no external sensitivity adjustment — it is a fixed-range sensor. The 2 mm nominal sensing distance is set at the factory. There is no potentiometer, teach button, or IO-Link configuration. If you need adjustable sensing range, consider IO-Link capable variants in the Omron E2E Next series. For standard applications, position the target at approximately 50–70% of the nominal sensing distance (1–1.4 mm) to provide a stable operating margin and account for target variation.

Q8: Can I connect this sensor directly to a relay coil? The NPN output can source (conduct) a maximum of 200 mA. Many small relay coils draw 30–100 mA at 24 V DC, so direct connection is feasible if the relay coil current is within the 200 mA limit and an appropriate flyback protection diode is fitted across the relay coil. For relay coils drawing more than 200 mA, or for multiple loads, use an interposing relay or transistor driver stage. Always fit a flyback diode across any inductive load (relay, solenoid) switched by a solid-state output to protect the output transistor.

Q9: Is there an LED indicator on the sensor? Yes. The E2E-X2D1-M1GJ has an integrated operation indicator LED that illuminates when the output is active (target detected). This is a standard diagnostic feature that allows quick visual confirmation of sensor operation during installation and commissioning — without needing a meter or laptop. The LED is visible from the side of the sensor body.

Q10: How does this sensor compare to a mechanical limit switch for the same application? A mechanical limit switch requires physical contact with the target and has moving parts that wear over time. Typical mechanical life is 1–10 million operations depending on the switch. An inductive proximity sensor has no moving parts and no contact wear — its service life in normal conditions is effectively unlimited from a mechanical standpoint, limited primarily by electrical/electronic component ageing and environmental factors. For high-cycle applications (>1 million cycles), proximity sensors generally offer longer service life and lower maintenance burden. The trade-off is that proximity sensors require a powered supply (12–24 V DC) and cannot switch high-voltage AC loads directly — they output a low-voltage transistor signal to a PLC or relay. Mechanical switches can be wired directly into 230 V AC control circuits without additional components.

Q11: Is this a new unit, and what packaging does it come in? This is a 100% new, original Omron unit supplied in OEM packaging with all protective covers and cable wrapping intact. It has never been installed or powered on. We do not sell refurbished, tested-used, or pull-out sensors.

Q12: Do you offer volume pricing for larger orders? Yes. We regularly supply multi-unit orders for machine builders, system integrators, and maintenance spares programmes. Contact us with your required quantity and delivery address for a quotation. Bulk orders typically dispatch within 3–5 working days.

E2E-X2D1-M1GJ New In Stock E2EX2D1M1GJZ Omron Proximity Switch