W-SD Star Delta Timer
W-SD is a Star-Delta Timer designed to help control induction motor starting by reducing inrush current through switching between Star and Delta modes. Helps prevent motor damage and improves operational efficiency. Key features include:
- Automatic Star-Delta Control: Switching from Star to Delta at 0.06 seconds or 0.1 seconds
- Multiple Voltage Support:
- DC: 12V, 24V
- AC: 220V, 380V
- Supported Time Ranges:
- W-SD15: 0-15 seconds
- W-SD30: 0-30 seconds
- W-SD60: 0-60 seconds
- W-SD120: 0-120 seconds
- Operation Mode:
- When powered, Star relay activates and starts timing
- When time expires, Star relay turns off and delays before switching to Delta mode
- After delay period, Delta relay activates
- If power is cut, timing circuit resets and both Star and Delta relays turn off
- SPDT Relay Output:
- Can control loads at 5A at 250VAC
- LED Status Indicator
- Easy Installation: Compatible with standard 8-Pin Socket
- Durable Construction: High-quality plastic housing
Suitable for factory motor control systems, automation, and industrial applications requiring precise Star-Delta control