SSR-40 AA 40A Heavy-Duty Solid State Relay FOTEK
Industrial heavy-duty SSR-40 AA single-phase Solid State Relay (SSR) designed for high-capacity contactless AC load switching directly driven by an AC control signal. Operated by an 80–250V AC control voltage, it smoothly switches high-power AC output loads ranging from 24V to 380V AC at up to 40 Amps continuous current. Featuring optical isolation between the input control logic and output load terminals, zero-cross switching technology to suppress surge currents and electromagnetic noise, and a solid-state structure with no moving contacts, it ensures spark-free, silent operation and exceptional service life in industrial heating, commercial oven control, HVAC systems, and heavy power panels.
Parameter | Specification |
|---|---|
Product Type | High-Current Single-Phase Solid State Relay (SSR) |
Model | SSR-40 AA |
Control Voltage (Input) | 80V to 250V AC (50/60 Hz) |
Control Current | ≤ 12 mA AC |
Load Voltage (Output) | 24V to 380V AC (50/60 Hz) |
Rated Load Current | 40 Amps |
Switching Type | Zero-Cross Detection / Switching |
On-State Voltage Drop | ≤ 1.5V AC |
Off-State Leakage Current | ≤ 3 mA |
Turn-On / Turn-Off Time | ≤ 10 ms |
Dielectric Strength | ≥ 2500V AC (Input to Output / Base) |
Insulation Resistance | 500 MΩ at 500V DC |
Operating Temperature | -20°C to +80°C |
Cooling Requirement | External Heat Sink mandatory (For loads > 10A; forced air cooling recommended above 20A) |
Indication | Red LED Control Input Status Indicator |
Mounting Type | Panel / Heat Sink Mount |
Compliance Standards | CE, RoHS Compliant |
Ssaoco Dammam
- Started from: Jul 10, 2025
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