✓ Compatible with Sintron ST-004
This is the official replacement Solid State Relay for the Sintron ST-004 Timer Control Power Box. If your ST-004 is no longer switching power on/off correctly, this is the most common component that needs replacing.
Specifications
| Model | SSR-1 A4825 |
| Type | Single-phase AC-to-AC Solid State Relay |
| Output voltage | 24–480VAC |
| Output current | 25A |
| Control input voltage | 70–280VAC |
| Operating temperature | -30°C to +75°C |
| Dimensions | 58.4 × 44.5 × 29.4mm |
| Certifications | CE, RoHS |
⚠ Note: A heat sink is recommended when operating at high current loads to prevent overheating and extend the relay's lifespan.