Omron Inductive Block Proximity Sensor, 2.5 mm Detection, 2-Wire NO, 12 → 24 V dc

RS Stock No.:: 215-7154
Distrelec Article No.:: 301-37-156
Mfr. Part No.:: E2S-W21 1M
Brand:: Omron

Omron Inductive Block Proximity Sensor, 2.5 mm Detection, 2-Wire NO, 12 → 24 V dc

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£58.05

(exc. VAT)

£69.66

(inc. VAT)

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In Stock

4 unit(s) ready to ship
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Plus 18 unit(s) shipping from 16 December 2025

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RS Stock No.:: 215-7154
Distrelec Article No.:: 301-37-156
Mfr. Part No.:: E2S-W21 1M
Brand:: Omron

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Omron
	Sensor Technology	Inductive
	Detection Range	2.5 mm
	Body Style	Block
	Output Function	NO
	Digital Switching Output Type	2-Wire
	Connection Type	Pre-Cabled
	Cable Length	1m
	Supply Voltage	12 → 24 V dc
	IP Rating	IP67
	Length	20mm
	Mounting Type	Flush
	Width	20mm
	Maximum DC Voltage	24V
	Diameter	8 mm
	Minimum Operating Temperature	-25°C
	Reverse Polarity Protection	Yes
	Maximum Switching Frequency	1kHz
	Shielding	Unshielded
	Switching Frequency	1 kHz
	Series	E2S
	Maximum Operating Temperature	+70°C
	Depth	7.4mm
	Standards Met	CE Certified
	Switching Current	50 mA
	Short Circuit Overload Protection	Yes

	Select all
	Brand Omron
	Sensor Technology Inductive
	Detection Range 2.5 mm
	Body Style Block
	Output Function NO
	Digital Switching Output Type 2-Wire
	Connection Type Pre-Cabled
	Cable Length 1m
	Supply Voltage 12 → 24 V dc
	IP Rating IP67
	Length 20mm
	Mounting Type Flush
	Width 20mm
	Maximum DC Voltage 24V
	Diameter 8 mm
	Minimum Operating Temperature -25°C
	Reverse Polarity Protection Yes
	Maximum Switching Frequency 1kHz
	Shielding Unshielded
	Switching Frequency 1 kHz
	Series E2S
	Maximum Operating Temperature +70°C
	Depth 7.4mm
	Standards Met CE Certified
	Switching Current 50 mA
	Short Circuit Overload Protection Yes

Omron E2S Series Proximity Sensor, 2.5mm Detection Range, IP67 - E2S-W21 1M

This inductive proximity sensor is a compact solution designed for precise electronic applications. Known for its small detection range of 2.5mm, it operates effectively within a supply voltage range of 12 to 24V DC. The sensor features a block body style and is suitable for flush mounting, making it versatile for various setups and environments.

Features & Benefits

• High-frequency switching capability at 1kHz enhances performance
• IP67 rated sensor ensures protection against dust and moisture
• Designed with reverse polarity protection to prevent damage
• Features low current consumption for efficient operation
• Offers a NO digital output configuration for straightforward integration
• Unshielded design suitable for non-metallic environments

Applications

• Used for accurate position sensing
• Ideal for detecting metal objects in industrial environments
• Applicable in robotics for proximity detection
• Suitable for use in conveyor systems to monitor object presence

What is the significance of having reverse polarity protection?

The reverse polarity protection feature safeguards the sensor from damage caused by incorrect wiring during installation, ensuring longevity and reliability in various applications.

How does the sensor maintain stable detection despite fluctuations?

Its advanced inductive technology allows the sensor to adapt to variations in workpiece positions, guaranteeing reliable operation even with minor movements over a 2.5mm detection range.

What makes this proximity sensor suitable for flush mounting?

The compact block design allows for seamless integration into surfaces, ensuring minimal intrusion and enhancing aesthetic appeal while maintaining effective sensing capabilities.

How does the IP67 rating benefit operational environments?

Being IP67 rated means the sensor is fully protected against dust ingress and can withstand immersion in water up to a specified depth, making it ideal for challenging industrial conditions.

What type of maintenance is required to ensure optimal performance?

Regularly check the sensor for any signs of physical damage or accumulated debris, especially in environments with high dust or moisture levels, to maintain its responsiveness and accuracy.