ABB CT-SAD.22 star-delta timer relay with 24–240 V AC and 24–48 V DC supply range, adjustable timing and two normally open outputs for motor control applications.
£70.11
The ABB CT-SAD.22 (1SVR500210R0100) is a compact and reliable electronic star-delta timer relay designed for automatic control of motor starting sequences in industrial automation and control applications. As part of the advanced ABB CT-D timer relay range, it provides precise timing control for star-delta changeover systems used with three-phase motors.
This single-function timer relay provides adjustable timing ranges, star-delta transition control and dependable relay outputs in a compact modular housing. Its slim 17.5 mm DIN rail mounting format makes it suitable for installation in electrical distribution panels and industrial control cabinets where space efficiency is important.
With a wide 24–240 V AC / 24–48 V DC control supply range, 2 normally open contacts and adjustable time ranges from 0.05 s to 10 min, the ABB CT-SAD.22 is ideal for controlling reduced-voltage motor starting applications.
Star-delta timer relays such as the ABB CT-SAD.22 help reduce starting current in three-phase motors by controlling the transition between star and delta connections. This improves motor starting performance and helps protect electrical equipment during high-load startup conditions.
The ABB CT-D timer range combines compact modular construction with reliable electronic timing functions, making it suitable for industrial automation panels, machinery control systems and motor management applications.
| Manufacturer | ABB |
|---|---|
| Series | CT-D Electronic Timers |
| Model | CT-SAD.22 |
| Product ID | 1SVR500210R0100 |
| Product type | Electronic star-delta timer relay |
| Function | Star-delta changeover |
| Control supply voltage | 24–240 V AC / 24–48 V DC |
| Time range | 0.05 s to 10 min |
| Transition time | Adjustable 20 ms to 50 ms |
| Output | 2 normally open contacts |
| Rated operational voltage | 250 V |
| Rated operational current | 5 A at 230 V AC (AC-12) |
| Mounting type | 35 mm DIN rail mounting |
| Terminal type | Screw terminals |
| Protection rating | IP20 terminals |
| Dimensions (H × W × D) | 70 × 17.5 × 63 mm |
| Weight | approx. 0.066 kg |
| Operating temperature | -20 °C to +60 °C |
The ABB CT-SAD.22 is an electronic star-delta timer relay used to control automatic star-delta motor starting sequences.
The timer relay operates with a control supply voltage of 24–240 V AC or 24–48 V DC.
The CT-SAD.22 provides adjustable timing ranges from 0.05 seconds to 10 minutes.
The timer relay provides 2 normally open relay contacts for star-delta control applications.
Yes, the CT-SAD.22 uses a compact 35 mm DIN rail mounting design suitable for control panels.
ABB CT-D timer relays provide dependable timing control, compact installation and reliable switching performance for industrial motor control systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...