i-Autoc KSK600D25 is a 25A single-phase solid state relay (SSR) designed for industrial switching of AC loads using a low-voltage DC control signal.

The relay features:

• 4-32V DC control input
• 24-660V AC load voltage
• 0.1-25A load current
• Zero-Cross switching
• SCR output
• internal RC protection circuit
• electrical isolation between control and load circuits.

The A1+ and A2- terminals are used for the DC control signal and correct polarity must be observed.

The wide 24-660V AC load range makes the relay suitable for many industrial 230V and 400V applications, subject to correct electrical design.

Typical applications include:

• electric heaters;
• cartridge heaters;
• band heaters;
• tubular heating elements;
• industrial ovens;
• injection molding machines;
• extruders;
• heated molds;
• thermal presses;
• industrial control panels;
• PLC automation.

The KSK600D25 uses Zero-Cross switching, making it particularly suitable for repetitive switching of resistive heating loads.

Main Technical Specifications

• Brand: i-Autoc
• Model: KSK600D25
• Series: KSK
• Type: Solid State Relay / SSR
• Configuration: Single phase
• Control input: 4-32V DC
• Load voltage: 24-660V AC
• Load frequency: 45-65Hz
• Rated load current: 25A
• Load current range: 0.1-25A
• Switching type: Zero Cross
• Output technology: SCR
• Blocking voltage: 1200V peak
• Minimum load current: 100mA
• Surge current at 10ms: up to 800A peak
• Maximum on-state voltage drop: approx. 1.5V RMS
• Maximum off-state leakage: approx. 3mA
• Input/output dielectric strength: 4000V RMS
• Insulation resistance: 1000MOhm
• Internal RC protection circuit
• Housing protection: IP20
• Operating temperature: -30 to +80 C
• Storage temperature: -30 to +100 C
• DIN rail industrial installation with appropriate heatsink system
• CE marked
• cRUus recognized

For high continuous load currents, correct thermal management, heatsink selection, cabinet ventilation and conductor sizing are essential.