--- product_id: 806757401 title: "Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage" brand: "wengart" price: "HK$203" currency: HKD in_stock: true category: "Wengart" url: https://www.desertcart.hk/products/806757401-wengart-delay-off-time-relay-tbt7-c1-single-function-timer store_origin: HK region: Hong Kong --- # 16A heavy-duty switching Universal 12-240V AC/DC input 0.1s to 10 days timing range Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage **Brand:** wengart **Price:** HK$203 **Availability:** ✅ In Stock ## Summary > ⏳ Delay OFF, Power ON: Master your automation with Wengart’s universal timing wizard! ## Quick Answers - **What is this?** Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage by wengart - **How much does it cost?** HK$203 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/806757401-wengart-delay-off-time-relay-tbt7-c1-single-function-timer) ## Best For - wengart enthusiasts ## Why This Product - Trusted wengart brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Space-Smart DIN Rail Mount:** Compact, professional-grade design fits standard 35mm rails with clear LED indicators for instant status checks and faster troubleshooting. - • **Power OFF Precision Control:** Ensures your fans and motors run exactly as long as needed after trigger removal—no wasted energy, no guesswork. - • **Ultra-Flexible Timing Range:** Set delays anywhere from a fraction of a second to 10 days with intuitive rotary dials—tailor automation to your exact workflow. - • **Robust 16A Switching Capacity:** Handles heavy loads with crisp, reliable switching—perfect for demanding industrial or residential applications without contact wear. - • **Universal Voltage Compatibility:** One relay to rule them all—works seamlessly from 12V solar setups to 240V industrial circuits, simplifying your inventory and installs. ## Overview The Wengart Delay Off Time Relay TBT7-C1 is a versatile, industrial-grade timer relay designed for precise delay-off control. Supporting universal AC/DC voltages from 12V to 240V and a robust 16A 1SPDT output, it fits standard DIN rails and offers an ultra-wide adjustable timing range from 0.1 seconds up to 10 days. Ideal for bathroom fans, corridor lighting, and industrial motor control, it ensures reliable post-trigger power management with clear LED status indicators. ## Description Precision Timing Control for Modern AutomationWhen you need reliable power-off logic, the Wengart Delay Time Relay TBT7 provides the industrial-grade performance you demand. This Single function Time Delay Relay is engineered for "Delay OFF" scenarios: once the control signal (S terminal) is deactivated, the relay stays energized for your pre-set duration before cutting power. It’s the essential component for ensuring ventilation fans clear the air or machines cool down properly after use.One Relay for Every System Forget worrying about matching voltages. Our **Universal Voltage** design supports ACDC 12V-240V, making it a "Swiss Army Knife" for electricians and hobbyists. The 16A 1SPDT output is powerful enough to handle a wide range of Load Control tasks, while the Rail Mounting design ensures it fits perfectly into any standard breaker box or industrial control panel.Technical SpecificationsFunction: Delay OFF (Signal Triggered)Supply Voltage: ACDC 12-240V (50/60Hz)Output: 1 x SPDT (Changeover)Current Rating: 16A / 250VAC (Resistive)Time Range: 0.1s - 10 days (adjustable)Indication: Power (Green LED), Output (Red LED)Installation: Standard 35mm DIN RailFrequently Asked Questions (Preventing Setup Errors)Q: Is this a "Delay ON" or "Delay OFF" relay? A: This is a Delay OFF relay. It requires a trigger signal (via terminal S). When the signal is disconnected, the timer starts, and the relay remains active until the time expires.Q: Does it work with my 24V Solar system and 120V AC household fan? A: Yes! The **Universal Voltage** input handles both DC and AC from 12V up to 240V. Just ensure your load does not exceed the 16A limit.Q: What does the S terminal do? A: The S terminal is the trigger. You connect your switch or sensor here. Once that switch is turned off, the TBT7 begins counting down the delay you set on the dial. ## Features - Dedicated Delay OFF Logic: Specifically designed for applications requiring power to remain on after a trigger signal is removed. This Single function Time Delay Relay is the perfect solution for bathroom exhaust fans, corridor lighting, or industrial cooling fans where a "run-on" time is essential for air quality or heat dissipation. - Universal Voltage Compatibility: Simplify your inventory and installation. Our ACDC12-240V wide-range input makes this relay compatible with almost any power system—from 12V/24V RV and solar setups to 120V/240V residential and industrial circuits. One unit handles it all without the need for additional transformers. - Heavy-Duty 16A Switching: Built for reliability under load. Featuring a robust 1SPDT (1 Form C) output, this relay safely manages a 16A resistive load. It provides crisp, decisive switching for Delay Control of Load, ensuring your motors and lighting systems operate smoothly without contact welding or failure. - Ultra-Wide Timing Range: Precision control at your fingertips. The intuitive rotary dials allow you to set the delay from 0.1 seconds to 10 days. Whether you need a brief buffer for a machine or a multi-day cycle for an automated process, the TBT7 offers the versatility required for complex automation projects. - Space-Saving Rail Mounting: Designed for professional control cabinets. The compact modular housing features a standard 35mm DIN Rail Mounting clip and a clear Output Indication LED. The status light provides instant visual feedback, making troubleshooting and system testing faster and more intuitive for DIYers and pros alike. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D2NBH9R6 | | Best Sellers Rank | #175,210 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Replacement Time Delay Relays | | Brand Name | WENGART | | Connector Type | Crimp | | Contact Current Rating | 16 Amps | | Contact Type | Normally Open | | Current Rating | 16 Amps | | Customer Reviews | 4.6 4.6 out of 5 stars (13) | | Item Type Name | delay timer relay | | Item Weight | 77 Grams | | Manufacturer | WENGART ELECTRIC CO.,LTD | | Minimum Switching Voltage | 12 Volts (DC) | | Model | TBT7-C1 | | Mounting Type | DIN Rail Mount | | Part Number | TBT7-B/C | | Specification Met | CE | | Unit Count | 1.0 Count | ## Product Details - **Brand:** WENGART - **Connector Type:** Crimp - **Contact Type:** Normally Open - **Current Rating:** 16 Amps - **Mounting Type:** DIN Rail Mount ## Images ![Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage - Image 1](https://m.media-amazon.com/images/I/51ZH6-1IMHL.jpg) ![Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage - Image 2](https://m.media-amazon.com/images/I/61+LUUy7X0L.jpg) ![Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage - Image 3](https://m.media-amazon.com/images/I/6138JpuIn+L.jpg) ![Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage - Image 4](https://m.media-amazon.com/images/I/61+S2-uxHNL.jpg) ![Wengart Delay Off Time Relay TBT7-C1, Single Function Timer ACDC 12V-240V, 16A 1SPDT Output with Signal Trigger, DIN Rail Mount for Bathroom Fan & Motor Control, Industrial Universal Voltage - Image 5](https://m.media-amazon.com/images/I/81EJPsdwSVL.jpg) ## Available Options This product comes in different **Model** options. --- ## 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.hk/products/806757401-wengart-delay-off-time-relay-tbt7-c1-single-function-timer](https://www.desertcart.hk/products/806757401-wengart-delay-off-time-relay-tbt7-c1-single-function-timer) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-17*