STR Star-Delta Timer Relay
SAFE STAR TO DELTA TRANSITION • PRECISE TIMING
STR is designed to limit the high inrush current of industrial motors at startup and safely perform the star-to-delta transition. Customizable for any motor application with independent star time and transition delay adjustment. Easily integrates into any panel without additional power supply thanks to its 24–240V AC/DC wide supply range.
Dual Independent Timing
Dedicated potentiometers for star time (1–60 s) and transition delay (50ms–600ms) for motor-specific configuration.
Wide Supply Voltage
Adapts to different panel voltages without extra power supply with 24–240V AC/DC wide input range.
Compact DIN Rail Design
Quick and easy installation with 22.5mm slim design and plug-and-play terminals.
Technical Specs
| Supply Voltage | 24–240 V AC/DC |
| Power Consumption | < 2 W |
| Star Relay Time | 1–60 sn (ayarlanabilir) |
| Transition Delay | 50ms–600ms (ayarlanabilir) |
| Relay Output | 2 adet SPDT 8A @ 250V AC |
| Dimensions | 90 × 23.5 × 61 mm |
| Weight | 100 g |
| Mounting | DIN Ray |
| Operating Temperature | -10 / +70 °C |
| Humidity | %95 RH (Yoğuşmasız) |
Application Areas
Pump and Compressor Motors
Conveyor Systems
Industrial Fans and Blowers
Heavy-Duty Motors
Textile Machines
Production Lines