Autonics SR1-4450 is a 50 A single-phase solid state relay (SSR) from the SR1 series with detachable heat sink. It switches heaters silently and without contacts from the AC control signal of a PID controller. In a 400 VAC phase-to-phase connection, the rated current corresponds theoretically to approx. 20.0 kW of resistive load.
Technical data
| Order code | SR1-4450 |
|---|---|
| Series | Autonics SR1 (detachable heat sink) |
| Phase | Single-phase |
| Input (control) voltage | 90–240 VAC |
| Load voltage | 48–480 VAC (50/60 Hz) |
| Rated load current | 50 A |
| Switching | Zero-cross turn-on |
| Dielectric strength | 2500 VAC, 1 min (live parts – case) |
| Weight | ≈ 80 g |
Adequate cooling and panel ventilation are decisive for SSR life. See the Autonics SR1 series page for all models.
Technical data is based on manufacturer documentation and is for information only.
For price, stock and lead time, use the Request a Quote button or call +90 533 945 27 94.
Tags: Autonics SR1-4450, SR1-4450, SSR 50A, solid state relay, 50 amp SSR