- Functional principle: Photoelectric proximity sensor
- Functional principle detail: Background suppression
- Dimensions (W x H x D): 27 mm x 92 mm x 70 mm
- Housing design (light emission): Rectangular
- Sensing range max.: 100 mm … 2,500 mm 1)
- Sensing range: 100 mm … 2,500 mm
- Extended sensing range with infrared LED: Detects objects from 100 mm up to 2,500 mm, utilizing an infrared LED light source, ensuring precise detection over extended distances.
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Over 5,000 parts in stock
- Brand: SICK
Sick 1029973 Photoelectric proximity sensor
Mfr # 1029973
Condition: New
*Some photos may appear used, but your item will be delivered in new, unused condition.
$524.91
/ea
Availability: In stock|Ships in 30 business days
- 100% Original
- Ships from USA; Free Shipping on orders over $50
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Images on this website are for illustration and reference purposes only and may differ from the actual product.
- Extended sensing range with infrared LED: Detects objects from 100 mm up to 2,500 mm, utilizing an infrared LED light source, ensuring precise detection over extended distances.
- Adjustable sensitivity via potentiometer: Features a built-in potentiometer for easy adjustment of the sensing range, allowing for quick adaptation to different application requirements.
- Robust design with IP67 enclosure rating: Constructed with a durable housing and an IP67 rating, offering protection against dust and water ingress, suitable for demanding industrial environments.
- Flexible switching outputs: Provides both NPN and PNP switching outputs, with a maximum output current of 100 mA, suitable for various control systems.
The SICK WT34-B400S04 is a high-performance photoelectric sensor designed for precise proximity detection in industrial automation applications. Part of the W34 series, this sensor combines advanced optical technology with a rugged design, making it ideal for integration into systems with space constraints.
Extended Sensing Range
One of the standout features of the WT34-B400S04 is its impressive sensing range. Capable of detecting objects from 100 mm up to 2,500 mm, it offers exceptional versatility for various applications. This extended range ensures reliable detection over longer distances, reducing the need for multiple sensors in large setups.
Adjustable Sensitivity
To accommodate different application requirements, the WT34-B400S04 features a built-in potentiometer that allows users to adjust the sensitivity. This easy-to-use function enables quick adaptation to varying detection needs, enhancing the sensor’s flexibility in diverse environments.
Robust and Durable Construction
Designed to withstand harsh industrial environments, the WT34-B400S04 boasts a robust design with an IP67 enclosure rating. This construction offers protection against dust and water ingress, ensuring reliable operation even in challenging conditions. The sensor’s durability reduces the need for frequent maintenance and extends its service life.
Flexible Switching Outputs
The sensor provides both NPN and PNP switching outputs, with a maximum output current of 100 mA. This versatility allows the WT34-B400S04 to be integrated into various control systems, accommodating different wiring and configuration preferences.
High Switching Frequency
With a switching frequency of 1 kHz, the WT34-B400S04 can handle high-speed applications, ensuring timely detection and response. This feature is particularly beneficial in automated systems where quick and accurate sensing is crucial.
Conclusion
The SICK WT34-B400S04 photoelectric sensor offers a combination of extended sensing range, adjustable sensitivity, robust construction, and flexible switching outputs. These features make it an excellent choice for applications requiring precise and reliable detection over long distances in industrial environments. By integrating the WT34-B400S04 into automation systems, industries can achieve enhanced detection capabilities and improved operational efficiency.
| Manufacturer | Sick |
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FAQ
What is your warranty policy?
All new products purchased from Enicstra LLC are backed by a 12-month warranty. We will repair any covered issue at no cost. If a repair is not possible, we will provide a full refund. For warranty support, please email customerservice@enicstra.com.
What happens if an item has a lead time longer than two weeks?
If an item requires a lead time of more than two weeks, we will notify you immediately. Your order will only be confirmed once you acknowledge and approve the lead time.
What is your returns policy?

If you are dissatisfied with the part(s) you received for any reason (subject to our Terms and Conditions), you may take advantage of our 30-day return-to-base policy, which allows you to request an exchange or a full refund.
Do you offer global delivery?

Yes, we offer reliable worldwide shipping. Our efficient logistics network allows us to process and ship orders to customers across the globe with ease and precision.
Please note: All international orders may be subject to customs duties, taxes, and import fees, which are the responsibility of the recipient. Enicstra does not collect or cover these charges.
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Enicstra partners with trusted carriers including USPS, UPS, FedEx, and DHL to ensure safe and timely delivery of every order.
We offer free domestic shipping on orders over $50. For international orders, additional shipping costs will apply based on the destination and selected carrier service.
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If you have any questions or encounter any issues with your order, please reach out to our Customer Support Team at customerservice@enicstra.com. We’re here to help and will respond as promptly as possible.
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If you wish to cancel your order, please contact us at customerservice@enicstra.com as soon as possible. All cancellation requests are subject to approval by Enicstra LLC and must comply with our Terms and Conditions.
Do you offer discounts for bulk orders?
Yes, we offer special pricing for bulk purchases. If you’re interested in ordering in large quantities, please contact us at sales@enicstra.com to discuss volume discounts and customized quotes.
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Our quotes are valid for 30 days from the date they are issued unless otherwise specified at the time of quotation.

Do you offer trade credit agreements?

Yes, we understand the importance of trade credit in business operations and provide credit agreements upon request, subject to eligibility. For more information, please contact our team.

Do you accept sales tax exemption certificates?
Yes. If your organization is tax‑exempt (e.g., reseller, nonprofit, government, educational), please email a copy of your valid exemption certificate to customerservice@enicstra.com.
Our team will review and apply the exemption to your account/orders. To avoid being charged tax, please send the certificate before placing your order (or we can refund the tax after verification if the order has already been placed).
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