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
Subtotal (1 unit)*
£58.05
(exc. VAT)
£69.66
(inc. VAT)
FREE delivery for orders over £50.00
- 4 unit(s) ready to ship
- Plus 3 unit(s) ready to ship from another location
- Plus 18 unit(s) shipping from 16 December 2025
| Units | Per unit | 
|---|---|
| 1 + | £58.05 | 
*price indicative
- RS Stock No.:
- 215-7154
- Distrelec Article No.:
- 301-37-156
- Mfr. Part No.:
- E2S-W21 1M
- Brand:
- Omron
| Select all | Attribute | Value | 
|---|---|---|
| Brand | Omron | |
| Sensor Technology | Inductive | |
| Body Style | Block | |
| Detection Range | 2.5 mm | |
| Output Function | NO | |
| Digital Switching Output Type | 2-Wire | |
| Connection Type | Pre-Cabled | |
| Cable Length | 1m | |
| Supply Voltage | 12 → 24 V dc | |
| Length | 20mm | |
| IP Rating | IP67 | |
| Mounting Type | Flush | |
| Width | 20mm | |
| Maximum DC Voltage | 24V | |
| Diameter | 8 mm | |
| Minimum Operating Temperature | -25°C | |
| Maximum Switching Frequency | 1kHz | |
| Series | E2S | |
| Depth | 7.4mm | |
| Short Circuit Overload Protection | Yes | |
| Maximum Operating Temperature | +70°C | |
| Switching Current | 50 mA | |
| Reverse Polarity Protection | Yes | |
| Switching Frequency | 1 kHz | |
| Standards Met | CE Certified | |
| Shielding | Unshielded | |
| Select all | ||
|---|---|---|
| Brand Omron | ||
| Sensor Technology Inductive | ||
| Body Style Block | ||
| Detection Range 2.5 mm | ||
| Output Function NO | ||
| Digital Switching Output Type 2-Wire | ||
| Connection Type Pre-Cabled | ||
| Cable Length 1m | ||
| Supply Voltage 12 → 24 V dc | ||
| Length 20mm | ||
| IP Rating IP67 | ||
| Mounting Type Flush | ||
| Width 20mm | ||
| Maximum DC Voltage 24V | ||
| Diameter 8 mm | ||
| Minimum Operating Temperature -25°C | ||
| Maximum Switching Frequency 1kHz | ||
| Series E2S | ||
| Depth 7.4mm | ||
| Short Circuit Overload Protection Yes | ||
| Maximum Operating Temperature +70°C | ||
| Switching Current 50 mA | ||
| Reverse Polarity Protection Yes | ||
| Switching Frequency 1 kHz | ||
| Standards Met CE Certified | ||
| Shielding Unshielded | ||
Omron E2S Series Proximity Sensor, 2.5mm Detection Range, IP67 - E2S-W21 1M
Features & Benefits
• 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
• 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?
How does the sensor maintain stable detection despite fluctuations?
What makes this proximity sensor suitable for flush mounting?
How does the IP67 rating benefit operational environments?
What type of maintenance is required to ensure optimal performance?
Related links
- Omron Inductive Block Proximity Sensor 2-Wire NO, 12 → 24 V dc
- Omron Inductive Block Proximity Sensor PNP NO, 12 → 24 V dc
- Omron Inductive Block Proximity Sensor NPN NO, 12 → 24 V dc
- Omron Inductive Block Proximity Sensor PNP NC, 12 → 24 V dc
- Omron Inductive Rectangular Proximity Sensor PNP NC, 12 → 24 V dc
- Omron Inductive Block Proximity Sensor 2-Wire NO, 12 → 24 V dc
- Omron Inductive Block Proximity Sensor PNP NO, 12 → 24 V dc
- Omron Inductive Block Proximity Sensor NPN NO, 12 → 24 V dc

