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Autonics SRH1 Series Solid State Relays

Manufacturer: AUTONICS
Model: SRH1 Series Solid State Relay
Load Current Range: 10A / 15A / 20A / 25A / 30A / 40A / 50A / 75A
Input Control Voltage: 4–32V DC or 90–250V AC
Load Voltage: 90–480V AC (Single-phase)
Dielectric Strength: 4000VAC (input–output)
Operating Temperature: –30℃ to +80℃
Protection Rating: IP20

Product Description

The AUTONICS SRH1 Series Solid State Relays are designed for reliable and efficient switching of AC loads in industrial automation. Featuring zero-crossing switching, compact design, and high dielectric strength, these relays provide excellent durability and noise immunity. With built-in overvoltage protection and LED operation indicators, the SRH1 series ensures safe and stable performance. These relays are widely applied in heating, lighting, motor control, and temperature regulation systems, offering a long service life without mechanical wear and maintenance.

Standard Features

  • Switching Type: Zero-crossing switching for reduced electrical noise and surge

  • Protection Functions: Built-in overvoltage protection and surge suppression

  • Indicator: LED operation indicator for input signal confirmation

  • Isolation: High dielectric strength of 4000VAC between input and output

  • Durability: Long operational life with no mechanical wear

  • Mounting: DIN rail or panel mounting options for installation flexibility

Technical Specifications

ModelLoad CurrentInput Control VoltageLoad VoltageSwitching Type
SRH1-1210D10A4–32V DC90–480V ACZero-crossing
SRH1-1215D15A4–32V DC90–480V ACZero-crossing
SRH1-1220D20A4–32V DC90–480V ACZero-crossing
SRH1-1230D30A4–32V DC90–480V ACZero-crossing
SRH1-1240D40A4–32V DC90–480V ACZero-crossing
SRH1-1250D50A4–32V DC90–480V ACZero-crossing
SRH1-1275D75A4–32V DC90–480V ACZero-crossing
SRH1-1210A10A90–250V AC90–480V ACZero-crossing
SRH1-1230A30A90–250V AC90–480V ACZero-crossing
SRH1-1250A50A90–250V AC90–480V ACZero-crossing

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