DAQCN Asymmetric Cycler Time Relay TBT7-R1 Din Rail Delay 24-240V Electronic Relay on Time Timer
| Place of Origin | China |
| Brand Name | DAQCN |
| Model Number | TBT7-R1 |
| Certification | CE, ROHS, IEC, TUV,ISO9001 |
| Packaging Details | Standard corrugated carton or customized as you requested |
| Delivery Time | 1-2weeks depend on your quantity |
- Overview
- Recommended Products

Quick Detail:
1. timer relay
2. Delay switching on or off the circuit, such as controlling the power-on time of the heating element, the working time of the water pump, and the power-off delay of the fan.
| Technical parameters | TBT7-R1 | TBT7-R2 | |
| Function | Asymmetric cycler time relay | ||
| Supply terminals | A1-A2 | ||
| Voltage range | AC/DC12-240V(50-60Hz) | ||
| Burden | AC0.7-3VAC/DC0.5-1.7W | ||
| Voltage range | AC230V(50-60Hz) | ||
| Power input | ACmax.12VA/1.3W | ACmax.12VA/1.9W | |
| Supply voltage tolerance | -15%;+10% | ||
| Supply indication | green LED | ||
| Time ranges | 0.1s-100days | ||
| Time setting | potentionmeter | ||
| Time deviation | 10%-mechanical setting | ||
| Repeat accuracy | 0.2%-set value stability | ||
| Temperature coefficient | 0.05%/℃,at=20℃(0.05%°F= at 68°F) | ||
| Output | 1xSPDT | 2xSPDT | |
| Current rating | 1*16A(AC1)/1*5A(AC1) | 2*16A(AC1)/2*5A(AC1) | |
| Switching voltage | 250VAC/24VDC | ||
| Min.breaking capacity DC | 500mW | ||
| Output indication | red LED | ||
| Mechanical life | 1*107 | ||
| Electrical life(AC1) | 1*105 | ||
| Reset time | max.200ms | ||
| Operating temperature | -20℃to+55℃(-4°F to-131°F) | ||
| Storage temperature | -35°Cto+75℃(-22°Fto-158°F) | ||
| Mounting/DIN rail | Din rail EN/IEC 60715 | ||
| Protection degree | IP40 for front panel/IP20 terminals | ||
| Operating position | any | ||
| Overvoltage cathegory | Ⅲ. | ||
| Pollution degree | 2 | ||
| Max.cable(size) mm2 | solid wire max.1*2.5 or 2*1.5/with sleeve max.1*2.5(AWG 12) max.1*2.5(AWG 12) | ||
| Dimensions | 95.5x18x64mm | ||
| Weight | 1*SPDT:W240 62g | 1*SPDT:W240 83g | |
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Description:
TBT7-R Series Asymmetric Cycler Time Relay: The Ultimate Engine for Complex, Long-Cycle Process Control
In the sophisticated arena of industrial process automation, building management, and large-scale environmental systems, the requirement often extends beyond simple on/off delays. Many critical applications demand a continuous, repeating cycle where the "on" and "off" periods are of differing, independently adjustable durations. This need for complex, rhythmic control is precisely where the TBT7-R Series Asymmetric Cycler Time Relay excels. Moving far beyond standard timers, this advanced relay is engineered to function as the precise, automated heartbeat for processes that require sustained, unattended periodic operation. It is a dedicated, intelligent solution designed for the long haul, offering unmatched programming range, exceptional accuracy, and industrial-grade durability to masterfully orchestrate complex cyclical tasks from seconds to seasons.
The Core Innovation: Mastering Complex Rhythms with Asymmetric Cycling
The defining feature of the TBT7-R Series is its dedicated Asymmetric Cycler function. Unlike standard flashers or on-delay timers, this relay allows users to independently program two distinct time periods within a single, repeating cycle:
- The "ON" (Output Energized) Time
- The "OFF" (Output De-energized) Time
Each of these periods is set using a dedicated front-panel potentiometer, providing intuitive and immediate control over the duty cycle. This asymmetric capability is fundamental for applications where the operational and rest periods are not equal. Whether it's energizing a pump for 8 minutes every 2 hours, cycling a ventilation fan for 30 seconds every 5 minutes, or controlling a greenhouse misting system for 15 minutes twice a day, the TBT7-R provides the perfect, self-sustaining control logic. This eliminates the need for multiple timers or complex PLC programming, offering an elegantly simple yet powerful standalone solution.
Unprecedented Time Range and Chronometric Precision
Engineered for both intricate short cycles and exceptionally long-duration programs, the TBT7-R boasts one of the widest timing ranges available in a standard DIN rail device.
- Unmatched Timing Scope: The relay covers an extraordinary range from 0.1 seconds to an astonishing 100 days. This monumental scale allows it to manage tasks spanning from rapid-pulse applications in packaging machinery to seasonal control schemes in agricultural or facility management, such as controlling de-icing cables or landscape lighting on a monthly schedule.
- Superior Accuracy and Stability: It delivers exceptional performance with a repeat accuracy of 0.2% of the set value, ensuring that cycles remain consistent over weeks and months of operation. Its timing is highly stable against environmental changes, featuring a minimal temperature coefficient of only 0.05% per °C. A green LED confirms power supply, while a red LED provides clear visual indication of the output status during the "ON" phase of the cycle.
Robust, Universal Power and High-Capacity Switching
Built for reliability in diverse electrical environments, the TBT7-R is designed for global deployment and demanding loads.
- Universal Power Compatibility: Its supply terminals accept an extremely wide AC/DC voltage range of 12-240V at 50/60Hz, with a tolerance of -15% to +10%. This versatility ensures seamless integration into any control panel worldwide, from 24VDC control circuits to 240VAC mains-powered cabinets, without the need for external converters.
- High-Power Switching Capacity: Available in TBT7-R1 (1x SPDT contact) and TBT7-R2 (2x SPDT contacts) configurations, the relay offers robust output contacts rated up to 16A at 250V AC (AC1). This substantial capacity allows it to directly control significant loads like industrial solenoids, larger contactor coils, fan motors, and heater banks, simplifying panel design by removing the need for intermediary amplifiers. Its design ensures a fast reset time of ≤200ms, enabling rapid cycle transitions.
Industrial Fortitude for Demanding and Continuous Operation
Constructed for the harshest industrial settings, the TBT7-R is built to last through millions of cycles.
- Exceptional Lifespan: The relay is engineered for extreme endurance, with a mechanical life of 10 million operations and an electrical life (AC1) of 100,000 operations, making it ideal for high-duty-cycle applications.
- Rugged Environmental Specifications: It operates reliably across a temperature range of -20°C to +55°C and can withstand storage from -35°C to +75°C. With a front-panel protection rating of IP40 and terminal protection of IP20, it is shielded against dust and accidental contact. Compliant with Overvoltage Category III and Pollution Degree 2, it is certified for use in demanding industrial and fixed electrical installations.
Compact, Standardized Design for Effortless Integration
The relay features a compact, space-saving design with dimensions of 95.5mm x 18mm x 64mm, allowing for high-density mounting on standard 35mm DIN rails (EN/IEC 60715). Its universal design permits operation in any physical orientation. Wiring is straightforward, supporting solid wire up to 2.5mm² (AWG 12).
Transformative Applications for Intelligent, Long-Term Automation
The TBT7-R’s unique capabilities make it indispensable for a vast spectrum of cyclical automation tasks:
- Industrial Process Control: For periodic dosing of chemicals, cyclic lubrication of machinery, alternating duty of dual pump or compressor systems, and batch mixing processes.
- Building & Energy Management: Controlling ventilation fans in parking garages, cycling irrigation systems in landscaped areas, managing the defrost cycles of commercial refrigeration units, and automating exterior or signage lighting.
- Agricultural & Environmental Systems: Perfect for automated feeding systems, cyclic misting or watering in greenhouses, aeration control in aquaculture, and periodic operation of environmental monitoring equipment.
- Water & Wastewater Treatment: Managing backwash cycles for filters, periodic sludge removal, and chemical feed pump operation in treatment facilities.
Conclusion: The Autonomous Maestro of Repetitive Processes
The TBT7-R Series Asymmetric Cycler Time Relay transcends the definition of a conventional timer. It is an autonomous control maestro, expertly designed to manage the complex, rhythmic heartbeat of modern industrial and facility operations. By offering an unparalleled combination of ultra-long timing range, independent cycle control, exceptional accuracy, and robust switching power, it provides a uniquely powerful and cost-effective alternative to more complex programmable controllers for dedicated cyclical tasks. For engineers and facility managers, it delivers set-and-forget reliability for processes that run for days, weeks, or months. Its installation simplifies control panels, reduces programming overhead, and ensures unwavering, precise cycle control. In the world of automation, where consistent, repetitive action is key, the TBT7-R stands as the definitive, intelligent solution for mastering time itself.
Applications:
-TBT7-R used for regular room ventilation,cyclic dehumidifi cation,light control,
circulating pumps,noon signs,etc.
Function Features
-2 time functions: Cycler beginning with pulse,Cycler beginning with pause
-Function choice is done by an external jumper of terminals S-A1.
-Time scale 0.1s-100days devided into 10 time ranges:
(0.1s-1s/1s-10s/0.1m-1m/1m-10m/0.1h-1h/1h-10h/0.1d-1d/1d-10d/3d-30d/
10d-100d)
-Relay status is indicated by LED
-1-Module, din rail mounting.
Competitive Advantage:
Advantages of Wenzhou DAQUAN Electric Co., Ltd
1. Innovation Leadership
With 258 patents and 27 years of industry experience, we lead in R&D of industrial control devices like relays and timers, ensuring cutting-edge product performance.
2. Global Certifications
Our products hold CE, ROHS, IEC, TUV certifications plus ISO9001, meeting strict international standards for seamless global market access.
3. Scale Supply Stability
Backed by a 7,800㎡ factory, 499-strong team, and 70M RMB annual output, we guarantee efficient production and timely delivery for bulk orders.
