Star-Delta Analog Timers AT8SDN Series

Product Overview

The AT8SDN star-delta analog timers are specifically designed to facilitate the smooth starting of high-capacity motors through a star-delta transition. This model allows for flexible time settings and star-delta switching times, which can be effortlessly adjusted using the integrated setting switches. With LED indicators for start and delta operations, users can easily monitor and identify the operational status of the timers, ensuring precise control and efficiency in motor management.

Features

• Versatile Power Supply Options
• The AT8SDN series supports a wide range of power supply options, including 100 - 240 VAC at 50/60 Hz and 24 - 240 VDC, making it highly adaptable for various industrial applications.
• Adjustable Timing Settings
• Users can configure the timer’s operation with ease, thanks to its adjustable time settings. The setting time (T1) can be adjusted from 0.5 to 100 seconds, while the star-delta switching time (T2) offers selectable options of 0.05, 0.1, 0.2, 0.3, 0.4, or 0.5 seconds.
• Intuitive Operation and Monitoring
• The simple and intuitive design allows for straightforward operation. Additionally, the LED display provides clear, real-time feedback on the output status, enhancing usability and operational accuracy.
• Robust and Reliable Performance
• Engineered to withstand rigorous industrial environments, the AT8SDN timers feature robust construction with excellent resistance to vibration and shock. They are capable of operating within a wide temperature range and offer long relay life cycles, both mechanically and electrically.
• Applications
• Ideal for starting large capacity motors, the AT8SDN series timers ensure reliable star-delta transition, protecting the motors and extending their operational life.

Product Components

Each AT8SDN timer package includes the following components:

• Main product unit (including mounting bracket)
• Instruction manual

Dimensions and Design

The compact design of the AT8SDN series fits easily into various control panels. The unit measures 48 mm by 48 mm, making it suitable for installations where space is limited. A bracket for mounting and detailed panel cut-out instructions are provided to ensure easy and accurate installation.

Specifications

• Power Supply: 100 - 240 VAC / 24 - 240 VDC
• Setting Time: 0.5 to 100 seconds
• Switching Time: 0.05 to 0.5 seconds
• Control Output: Relay
• Contact Type: SPST (1a)
• Contact Capacity: 250 VAC / 30 VDC at 5 A
• Operating Temperature Range: -10 to 55°C
• Weight: Approximately 90 g
• LED Indicators: Yes (for start and delta operations)

Additional Accessories

For enhanced functionality, the following accessories are available separately:

8-pin Socket: Compatible models include PG-08 and PS-08(N), allowing for flexible integration into existing systems.

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