--- product_id: 76672298 title: "(BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months)" brand: "blackt electrotech" price: "£11.94" currency: GBP in_stock: true reviews_count: 8 category: "Blackt Electrotech" url: https://www.desertcart.co.uk/products/76672298-bt41d-250vac-digital-lcd-display-programmable-control-counter-time-timer store_origin: GB region: United Kingdom --- # 16A at 240V AC heavy-duty power handling Replaceable CR3032 battery for uninterrupted accuracy 20 programmable on/off cycles daily/weekly (BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) **Brand:** blackt electrotech **Price:** £11.94 **Availability:** ✅ In Stock ## Summary > ⏳ Automate smarter, not harder — control your world with precision! ## Quick Answers - **What is this?** (BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) by blackt electrotech - **How much does it cost?** £11.94 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/76672298-bt41d-250vac-digital-lcd-display-programmable-control-counter-time-timer) ## Best For - blackt electrotech enthusiasts ## Why This Product - Trusted blackt electrotech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Maintenance:** Easily replaceable CR3032 battery guarantees long-term, hassle-free operation. - • **Compact DIN Rail Integration:** Sleek 86×36×65 mm design fits seamlessly into professional setups without clutter. - • **Precision Automation Mastery:** Customize up to 20 daily or weekly on/off cycles for ultimate control over your devices. - • **Robust Industrial Reliability:** Built with a high-grade chip ensuring interference resistance and consistent performance. - • **Heavy-Duty Power Compatibility:** Supports up to 16A at 240V AC, perfect for demanding electrical loads. ## Overview The Blackt Electrotech BT41D is a compact, DIN rail-mountable digital timer relay switch designed for professional-grade automation. It offers up to 20 programmable on/off cycles daily or weekly, supports heavy-duty 16A at 240V AC loads, and features a replaceable CR3032 battery for reliable, interference-resistant operation. Ideal for automating streetlights, heaters, neon signs, and more, it combines precision, durability, and space-saving design with a 6-month warranty. ## Description Product Description Precision Timing and Control The Blackt Electrotech BT41D is a high-performance 250VAC Digital LCD Display Programmable Timer Relay Switch designed for precise control of electrical circuits. Equipped with an easy-to-read LCD display, it allows accurate time setting and monitoring, ensuring your devices operate exactly when you want them to. Its programmable features make it ideal for automation, energy saving, and safety in both residential and industrial applications. Reliable for Multiple Applications Ideal for lighting systems, motors, pumps, HVAC systems, industrial machinery, and other electrical appliances, the BT41D is a dependable choice for engineers, technicians, and DIY enthusiasts. Its combination of precision, durability, and versatility ensures it meets the demands of a wide range of automation projects. Versatile Counter and Timer Functions This multifunction device combines counter and time control capabilities, giving you flexibility for various automation tasks. Whether you need to start or stop equipment at specific intervals, track operational cycles, or manage repetitive tasks, the BT41D delivers reliable performance. With its user-friendly interface, programming and adjusting settings is quick and hassle-free. Review: Superb priduct. - Superb product, you can set 20 times alarm in per day, its work properlly,, 😎 Review: Good product - Good product, working great, but a small installation video would have helped a lot. ## Features - 🔹 [Multi-Function Control]: Ideal for automating electric devices like streetlights, heaters, neon signs, and more with flexible timing settings. - 🔹 [Flexible Scheduling]: Program up to 20 on/off cycles daily or weekly, giving you tailored automation for your appliances. - 🔹 [Premium Build Quality]: Equipped with an easily replaceable CR3032 battery and a robust industrial chip for accuracy and resistance against interference. - 🔹 [Power Handling Capability]: Rated for 16A at 240V AC (50/60Hz), suitable for heavy-duty and diverse applications. - 🔹 [Space-Saving Form Factor]: Compact dimensions (86 × 36 × 65 mm) with DIN rail mounting support for effortless integration into setups. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076NXPYKC | | Best Sellers Rank | #9,089 in Home Improvement ( See Top 100 in Home Improvement ) #26 in Wall Timer Switches | | Brand | Blackt Electrotech | | Colour | White | | Country of Origin | China | | Customer Reviews | 4.0 out of 5 stars 369 Reviews | | Enclosure Material | Plastic | | Item Dimensions D x W x H | 8.6D x 6.5W x 3.6H Centimeters | | Item Weight | 145 Grams | | Manufacturer | Blackt Electrotech | | Manufacturer Part Number | BT41F1 | | Material | Plastic | | Model number | BT41F1 | | Number of settings | 16 | | Product Dimensions | 8.6D x 6.5W x 3.6H Centimeters | | Unit Count | 1.0 Count | ## Product Details - **Colour:** White - **Brand:** Blackt Electrotech - **Material:** Plastic - **Product Dimensions:** 8.6D x 6.5W x 3.6H Centimeters - **Item Weight:** 145 Grams ## Images ![(BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 1](https://m.media-amazon.com/images/I/51dLDcNVpVL.jpg) ![(BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 2](https://m.media-amazon.com/images/I/51nSgkqszhL.jpg) ![(BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 3](https://m.media-amazon.com/images/I/615erUEu8VL.jpg) ![(BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 4](https://m.media-amazon.com/images/I/51WdapMRb5L.jpg) ![(BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 5](https://m.media-amazon.com/images/I/61JnuqahK-L.jpg) ## Questions & Answers **Q: Is there a warranty? Where can I get the service?** A: I don't know. I suppose, you have to contact original supplier or manufacturer.. **Q: What happen to the program if 230 v ac supply fails for some time and returns. will the program continue to work as it is.** A: maintain last state **Q: In case of problem during warranty period, whom we have to contact for replacement** A: Amazon **Q: How can i get din channel rail to install this switch?** A: You install this in a standard fuse / power distribution panel. You need a spare slot where you have your fuses / circuit breakers. If you are not familiar with electrics you need to get an electrician to install it ## Customer Reviews ### ⭐⭐⭐⭐⭐ Superb priduct. *by S***T on 26 January 2026* Superb product, you can set 20 times alarm in per day, its work properlly,, 😎 ### ⭐⭐⭐⭐ Good product *by G***� on 25 December 2025* Good product, working great, but a small installation video would have helped a lot. ### ⭐⭐⭐⭐⭐ ... *by V***E on 22 February 2026* Since installing this device, it has helped me a lot. I don't have to get up to turn on the geyser, and I would also like to thank Amazon for helping me a lot. Thank you. ## Frequently Bought Together - Blackt Electrotech (BT41D) : 250VAC Digital LCD Display Programmable Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Blackt Electrotech (BT41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 12 Months) - Blackt Electrotech BT41D4 : Digital Timer Switch Relay DIN Rail, 25 Amps Programmable Automatic On/Off (Single-Phase) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/76672298-bt41d-250vac-digital-lcd-display-programmable-control-counter-time-timer](https://www.desertcart.co.uk/products/76672298-bt41d-250vac-digital-lcd-display-programmable-control-counter-time-timer) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*