ASY-3D 5A Digital Timer – 0-999s/m/h Multifunction Relay

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Description:

ASY-3D Compact Digital Time Relay – High Precision Timing with Three-Digit Display

The ASY-3D is a compact, panel‑mount digital time relay engineered to deliver precise, versatile, and reliable delay control across a wide range of industrial, commercial, and automation applications. Featuring an ultra‑wide universal power supply (DC12‑48V and AC12‑380V 50Hz), low power consumption, and a robust 5A output contact, this relay offers exceptional flexibility in a space‑saving 50×62 mm panel cutout. With a three‑digit digital display and three selectable time units (seconds, minutes, and hours) with ranges up to 999, the ASY‑3D provides unparalleled precision for both short‑duration and long‑duration timing tasks. Its digital setting method allows for exact and repeatable timing, making it superior to analog potentiometer‑based timers. Weighing ≈150g, it is lightweight yet robust, making it an ideal choice for control panels, OEM equipment, and field upgrades worldwide.

Universal Power Supply for Global Deployment

The ASY‑3D operates on an exceptionally wide voltage range: DC12V‑48V and AC12V‑380V (50Hz). This universal compatibility allows the relay to be used in virtually any control system – from low‑voltage DC logic circuits (e.g., PLC outputs, battery‑backed systems, sensors) to standard AC mains up to 380V, covering industrial power systems across the globe. This eliminates the need for multiple relay models for different voltages, simplifying inventory and reducing costs. The power consumption is remarkably low: DC1.0W / AC1.0VA, which minimizes heat generation inside enclosures and reduces the load on control circuits, making it suitable for energy‑sensitive applications and densely populated panels.

Compact Panel‑Mount Design with Digital Display

Designed for front‑panel installation, the ASY‑3D requires a 50×62 mm mounting hole – a compact footprint that allows high‑density placement on control cabinets, machine consoles, or portable test boxes. Weighing ≈150g, it is lightweight yet sturdy. The front panel features a clear three‑digit LED or LCD display, along with intuitive setting buttons for adjusting the time value and selecting the time unit. The digital display provides precise, easy‑to‑read timing information, eliminating the guesswork associated with analog dial settings. The intuitive layout enables quick, tool‑free setting of the delay, reducing setup errors and training time.

Three Models for Different Timing Requirements

The ASY series offers three models to suit different precision and range needs:

· ASY-1D: 0‑9 seconds, 0‑9 minutes, or 0‑9 hours (single‑digit resolution). Ideal for simple, short‑duration timing tasks where coarse adjustment is sufficient.
· ASY-2D: 0‑9.9 seconds, 0‑9.9 minutes, or 0‑9.9 hours (one decimal place), as well as 0‑99 seconds, 0‑99 minutes, or 0‑99 hours (two‑digit integer). Offers enhanced precision for applications requiring finer adjustment.
· ASY-3D: 0‑99.9 seconds, 0‑99.9 minutes, or 0‑99.9 hours (one decimal place), as well as 0‑999 seconds, 0‑999 minutes, or 0‑999 hours (three‑digit integer). Provides the highest precision and the widest range, suitable for both short and long‑duration timing tasks with exceptional accuracy.

The ASY‑3D model, in particular, offers the greatest flexibility with a maximum timing range of 999 seconds (16.65 minutes), 999 minutes (16.65 hours), or 999 hours (41.6 days). This makes it suitable for applications ranging from very short machine pulses to extremely long cycles such as weekly maintenance reminders or extended irrigation schedules.

Three Selectable Time Units (S/M/H)

The ASY‑3D allows users to select between seconds, minutes, or hours via a front‑panel switch. This feature enables a single relay to handle a vast range of timing applications:

· Seconds mode: Ideal for short‑duration delays in packaging machinery, welding timers, pulse stretching, and anti‑short cycling for compressors.
· Minutes mode: Perfect for conveyor belt sequencing, fan delay after motor stop, defrost cycles, and pump alternation.
· Hours mode: Excellent for long‑duration processes such as irrigation scheduling, environmental chamber cycling, filter maintenance reminders, and equipment soak times.

The ability to switch between time units without changing hardware makes the ASY‑3D exceptionally versatile and cost‑effective, eliminating the need to stock multiple dedicated timers.

Robust Output Contact for Direct Load Switching

Equipped with a control output rated at 5A at 220V AC, the ASY‑3D can directly switch a variety of loads, including contactor coils, solenoid valves, small motors, indicator lamps, fans, and resistive heaters. The output contact is designed for long‑term reliability, with a mechanical life of 10⁷ operations and an electrical life of 10³ operations at rated load. This durability makes it suitable for high‑cycle applications such as packaging machinery, conveyor systems, and repetitive industrial processes.

High Insulation and Dielectric Strength for Safety

Safety is paramount in any electrical installation. The ASY‑3D offers an insulation resistance of ≥100MΩ at DC500V, ensuring excellent isolation between the power supply, timing circuit, and output contact. Dielectric strength is rated at 1500V AC between coil/electronics and contacts (BCC) and 1000V AC between open contacts (BOC), guaranteeing protection against voltage surges and reducing the risk of arcing or breakdown. These characteristics make the relay suitable for use in industrial environments where electrical noise and transients are common.

Reliable Performance in Diverse Environments

The ASY‑3D is built to operate reliably under typical industrial conditions:

· Operating temperature: -10°C to +50°C – suitable for unheated workshops, outdoor enclosures, and climate‑controlled rooms.
· Humidity: 35% to 85% (non‑condensing) – performs well in most environments without risk of moisture damage.

These specifications ensure stable timing accuracy and long life even in moderately demanding settings.

Typical Applications

The versatility of the ASY‑3D makes it ideal for countless applications:

· Motor Control: Star‑delta starting, anti‑short cycling for compressors, sequential motor starting.
· Conveyor Systems: Delayed start of belt sections, accumulation zone timing.
· HVAC: Fan delay on/off, defrost timing (up to 999 minutes), filter maintenance reminders (up to 999 hours).
· Lighting Control: Staircase lighting delay, corridor occupancy control, signage flashing.
· Pump Control: Alternating pump operation, well pump delay after power restoration.
· Industrial Machinery: Welding timers, cooling fan delays, batch process timing.
· Irrigation & Agriculture: Automated watering cycles (up to 999 hours).
· Test Equipment: Aging tests, vibration table cycles, data logging intervals.
· Maintenance Scheduling: Equipment run-time tracking and service reminders using hour‑range settings.

Easy Installation and Operation

Mounting the ASY‑3D is straightforward: cut a 50×62 mm rectangular hole in the panel, insert the relay, and secure it with the included brackets. Connect the power supply (DC12‑48V or AC12‑380V) and the load to the appropriate terminals. Use the front‑panel buttons to set the desired time value and select the time unit (seconds, minutes, or hours). The digital display provides clear, real‑time feedback of the set value and timing status. No complex programming or external tools are needed. The clear labeling and logical layout minimize wiring errors and reduce installation time.

Conclusion

The ASY‑3D Compact Digital Time Relay combines a space‑saving panel‑mount design, universal AC/DC power supply (12‑380V AC / 12‑48V DC), low power consumption, and a robust 5A output with a three‑digit digital display and three selectable time units (seconds, minutes, hours). With timing ranges up to 999 seconds, 999 minutes, or 999 hours, it provides exceptional precision and flexibility for both short and long‑duration control tasks. Its high insulation resistance, dielectric strength, and long mechanical life ensure reliable operation in demanding industrial environments. Whether you need a precise 0.1‑second delay for a packaging line or a 999‑hour cycle for an irrigation system, the ASY‑3D delivers consistent, repeatable performance. For engineers, panel builders, and maintenance professionals seeking an affordable, versatile, and high‑precision timing solution, the ASY‑3D is the perfect choice. Install it once and enjoy years of dependable service.

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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.