SSR-75 DA-H 75A Extra Heavy-Duty High-Voltage Solid State Relay FOTEK
Industrial extra heavy-duty SSR-75 DA-H high-voltage single-phase Solid State Relay (SSR) designed for ultra-high current and high-AC-voltage load switching in severe industrial environments, high-capacity electric heating furnaces, plastics manufacturing, heavy process automation, and industrial motor drives. Driven by a 3–32V DC control logic input, it safely and efficiently controls high-voltage AC operating loads ranging from 90V up to 480V AC at up to 75 Amps continuous load current. Featuring optocoupler isolation between input and load circuits, zero-cross switching to eliminate current surges and high-frequency electrical noise, and a solid-state design with no moving mechanical contacts, it ensures spark-free, silent performance and maximum operational longevity.
Parameter | Specification |
|---|---|
Product Type | High-Voltage Single-Phase Solid State Relay (SSR) |
Model | SSR-75 DA-H |
Control Voltage (Input) | 3V to 32V DC |
Control Current | 3 mA to 25 mA DC |
Load Voltage (Output) | 90V to 480V AC (50/60 Hz) |
Rated Load Current | 75 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 | Heavy-Duty External Heat Sink mandatory with forced air cooling (Fan) |
Indication | Red LED Control Input Status Indicator |
Mounting Type | Panel / Heavy-Duty Heat Sink Mount |
Compliance Standards | CE, RoHS Compliant |
Ssaoco Dammam
- Started from: Jul 10, 2025
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