Single-phase solid state relays (SSR) in DA, AA, DD, and SSVR configurations — for precise, silent, and long-life AC/DC voltage switching in industrial heating, temperature control, and automation applications.
DA (DC-AC), AA (AC-AC), and DD (DC-DC) models feature optical isolation and CE certification. Current ratings from 10A to 120A. Factory-direct supply, OEM and wholesale available.
Key Features
- Four configurations — DA (DC-AC) / AA (AC-AC) / DD (DC-DC) / SSVR (voltage regulator)
- Optical isolation — 2500V rms (DA/AA), 2000V rms (DD), no isolation (SSVR)
- Silent switching — no mechanical contacts, long service life
- CE certified
- Current range — 10A to 120A
- Factory-direct supply — OEM and wholesale available
Applications
Suitable for industrial heating systems, temperature control equipment, packaging machines, automation control panels, and light industrial switching applications.
| Parameter | DA | AA | DD | SSVR |
|---|---|---|---|---|
| Control Type | DC-AC | AC-AC | DC-DC | Voltage Regulator |
| Control Input | 3–32V DC | 70–280V AC | 3–32V DC | Potentiometer (470KΩ–560KΩ/2W) |
| Load Voltage | 24–480V AC | 24–480V AC | 12–220V DC | 10–220V AC / 10–380V AC |
| Current Range | 10A–120A | 10A–120A | 10A–100A | 10A–120A |
| Peak Voltage | 800V–1200V AC | 800V–1200V AC | 220V DC | 600V AC |
| Isolation Voltage | 2500V rms | 2500V rms | 2000V rms | No isolation |
