Multispan SDX-22 Star Delta Timer | 0–60 Sec Delay | Dual Relay | 230V/415V

Product Summary:

The Multispan SDX-22 is an industrial-grade Star Delta Timer designed for 3-phase motor starter panels. It controls the automatic transition between star and delta connections with programmable delay and a short pause interval to ensure smooth switching. The unit supports both 230V and 415V AC, includes dual relays for star and delta contactors, and features LED status indicators for real-time feedback.

🔹 Key Features:

• Adjustable Time Delay: 0 to 60 seconds via rotary knob

• Pause Time: Selectable 100ms or 200ms (via internal slide switch)

• Relay Outputs:

  • Star Relay: 1 C/O, 5A @ 230V AC

  • Delta Relay: 1 C/O, 5A @ 230V AC

• Power Supply Options: 230V AC ±20% or 415V AC ±20%, 50Hz

• Status Indicators: LED for Star ON, Delta ON, and Power

• Mounting: DIN rail (35mm standard)

• Compact Design: 90 x 47 x 66.35 mm

• Durable Enclosure: ABS plastic body
  

🔹 Applications:

• Star-Delta starter panels

• 3-phase induction motors

• Pump and blower systems

• Compressors and conveyor drives

• HVAC motor controls

• Industrial machinery requiring staged starting
  

🔹 Product Benefits:

• Prevents Inrush Damage: Reduces current surge during motor startup

• Dual Relay Output: Built-in relays for both star and delta contactors

• Quick Setup: Rotary dial and LED feedback for intuitive operation

• Flexible Supply Voltage: Use in 230V or 415V panels

• Pause Time Safety: Prevents relay overlap or short circuit during transition

• DIN Rail Compatible: Ideal for compact control panels
  

❓ FAQs:

Q1. What is the purpose of a star delta timer?
It automates the transition from star to delta connection to safely start large 3-phase motors.

Q2. Can I use this in both 230V and 415V panels?
Yes, SDX-22 supports both voltage options (±20% range).

Q3. Is the pause time fixed or adjustable?
It is selectable between 100ms and 200ms using an internal slide switch.

Q4. Are both relays included in the unit?
Yes, it includes two relays—one for star and one for delta contactor control.

Q5. How is the SDX-22 mounted?
It is DIN rail mountable (35 mm standard) for easy panel installation.