2ASDT1 is a star-delta time delay relay designed for three-phase motor starting. It reduces inrush current and mechanical stress by switching from star to delta after an adjustable start period. It provides separate NO outputs for star and delta contactors.
🔧 Technical Highlights:
- Function: Star-delta time delay relay
- Supply Voltage: 24-240 V AC/DC
- Frequency: 50/60 Hz
- Star Time Range: 3 s to 120 s
- Transition Pause Time: Selectable 60 ms, 90 ms, 120 ms, 150 ms
- Output Contacts: 2 NO (1 NO Star + 1 NO Delta)
- Contact Rating: 5 A at 240 V AC / 28 V DC (resistive)
- Reset Time: 200 ms max.
- Power Consumption: 4 VA max.
- Mounting: Base / DIN rail
- Operating Temperature: -15°C to +60°C
- Dimensions (W x H x D): 22.5 x 75 x 100.5 mm
✅ Benefits:
- Supports reliable star-delta starting to reduce motor inrush current
- Adjustable star time for different motor sizes and load conditions
- Selectable transition pause time to suit contactor switching requirements
- Separate NO outputs for star and delta contactors simplifies control wiring
- Compact DIN rail format for panel integration
🚀 Applications:
- Star-delta motor starters for pumps, fans, and compressors
- Conveyors and material handling equipment
- HVAC plant rooms and industrial ventilation systems
- General control panels for three-phase motor starting
Reliable star-delta time delay relay for controlled motor starting in industrial automation panels.
FAQs
- Q: What is the difference between a star-delta time delay relay and a time switch?
A: A star-delta time delay relay controls the changeover timing from star to delta for motor starting. A time switch schedules switching by time of day or day of week.
- Q: What outputs does the 2ASDT1 provide?
A: It provides 2 NO relay outputs: 1 NO for the star contactor and 1 NO for the delta contactor.