DH48S-S AC220V Digital Time Relay

📖 Description

• The DH48S-S is a high-precision digital time relay designed for industrial automation and electrical control systems. It supports adjustable delay timing with a clear digital display for easy monitoring and setup. Operating on AC 220V, it ensures reliable performance in various applications such as motor control, lighting, and process automation. Comes with a socket for easy installation, making it a versatile choice for time control tasks.

🔧 Key Features

• Power Supply: Operates on AC 220V.
• Timing Range: Adjustable from 0.1 seconds to 99 hours, allowing for flexible timing configurations.
• Display: Equipped with an 8-segment, 4-digit LED display for clear visibility of timing settings.
• Contact Configuration: Single Pole Double Throw (SPDT) with a contact rating of 3A at 250V AC or 5A at 28V DC.
• Setting Method: Utilizes a dial switch for easy and precise time setting.
• Mounting: Designed for panel or DIN rail mounting, compatible with PF083A and PF083A-E sockets.
• Dimensions: Measures 48 x 48 x 97.4 mm, suitable for standard control panels.
• Operating Conditions: Functions effectively within a temperature range of 0 to 50°C and up to 95% relative humidity (non-condensing).​

🔁 Operational Modes

The DH48S-S supports cyclic timing operations. For example, setting the relay to “5S05S” will turn the connected load on for 5 seconds, then off for 5 seconds, repeating this cycle continuously. This functionality is ideal for applications requiring periodic on/off control without external triggering.

🛠️ Applications

• Industrial Automation: Controlling machinery operations with precise timing sequences.
• HVAC Systems: Managing timed operations for heating, ventilation, and air conditioning equipment.
• Lighting Control: Automating lighting systems with scheduled on/off cycles.
• Pumping Systems: Regulating pump operations to prevent overuse or to maintain specific flow rates.​
• TIMER