Product overview
The VTEKE DTR-SD is a Star-Delta Timer Relay designed for automatic star-delta starting of three-phase motors. It controls the transition from star to delta operation using an adjustable star operating time and a defined transition delay between the star and delta stages.
Applications
- Designed for star-delta starting of three-phase induction motors where reduced starting current is required. Suitable for:
- Pumps
- Fans and ventilation systems
- Compressors
- Industrial machinery
- Conveyors and material handling systems
- Motor control panels
Key features
- Designed for automatic star-delta motor starting
- Adjustable star operating time from 1 to 30 seconds
- Adjustable transition time from 100 to 500 ms
- DIN rail mounting
- Plug-in connection
Specifications
Timing Characteristics
| Star Time (λON) | 1–30 s |
|---|---|
| Transition Time (tOFF) | 100–500 ms |
| Switching Time | 10 ms |
Electrical Characteristics
| Operating Voltage (Un) | 24–250 V AC/DC |
|---|---|
| Operating Frequency | 50/60 Hz |
| Operating Power | <4 VA |
| Contact Configuration | 2 × (1NO) |
Output Characteristics
| Contact Rating | 5 A / 30 V DC |
|---|---|
| Contact Rating | 10 A / 250 V AC |
| Contact Rating | 12.5 A / 125 V AC |
Mechanical Characteristics
| Connection Type | Plug-in |
|---|---|
| Maximum Wire Size | 1.5 mm² |
| Mounting | DIN Rail |
| Weight | <120 g |
| Protection Degree | IP20 |
Environmental Characteristics
| Operating Temperature | -20°C to +55°C |
|---|---|
| Working Altitude | <2000 m |
Full certificate register
CE conformitySample
Download certificate for CE conformityISO certificationSample
Download certificate for ISO certification
Ready To Specify Your Next Project?
Our sales engineers work directly with panel builders and procurement teams to specify the right product, confirm lead times, and coordinate international shipping.