This document introduces the RA series high current high voltage AC solid state relays, including switching mode, rated operating voltage, rated operating current, control voltage, non-repetitive peak voltage, ordering key and other features.
The RA series solid state relays from Carlo Gavazzi provide high‑current, high‑voltage AC switching for inductive and resistive loads. They feature both zero‑crossing and instant‑on switching modes, optocoupled inputs, and robust insulation up to 4000 VACrms.
The document includes detailed electrical and thermal specifications, selection guides, heatsink dimension charts, mounting instructions, and accessory information for motor‑start and other high‑surge applications.
| Rated operational current | 50, 90 and 110 AACrms |
|---|---|
| Rated operational voltage | Up to 600 VACrms |
| Insulation voltage | 4000 VACrms |
| Non‑repetitive peak voltage | up to 1600 V |
| Operating temperature range | -20 °C to +70 °C |
| Maximum junction temperature | < 128 °C |
| Power factor | 20.5 @ 400 VACrms |
The relays offer zero‑crossing switching and instant‑on switching.
The relays have an insulation voltage of 4000 VACrms.
The relays operate from –20 °C to +70 °C.
The control terminal should be tightened to less than 1.5 Nm.