Technical Data Sheet: Celduc SU967460

Product Type: Single-Phase Solid State Relay (SO8 Series Style)

Mounting: DIN Rail / Surface Mount (Integrated Heatsink compatible)

1. Identification

• Manufacturer: Celduc Relais (Made in France)

• Model Number: SU967460 (replaces/compatible with SU900100)

• Certifications: CE, cURus (UL Recognized)

2. Output Specifications (Power Side)

This side handles the high-power load (Terminals 1/L1 and 2/T1).

Feature	Specification
Operating Voltage Range	24–600 Vac
Maximum Current ($I_{max}$)	75A (with proper heat dissipation)
AC-51 Rating	50A @ 480Vac (Resistive loads)
Switching Type	Zero Cross (Ideal for resistive or slightly inductive loads)

3. Input Specifications (Control Side)

This side receives the signal to turn the relay on/off (Terminals A1/+ and A2/-).

Feature	Specification
Control Voltage Range	3.5–32 Vdc
Control Current	Typically < 10mA
Status Indicator	Visual LED (Green/Yellow) on the front face

4. Connection Diagram

• A1 (+): Positive Control Signal (DC)

• A2 (-): Negative Control Signal (DC Ground)

• 1/L1: Line Input (AC)

• 2/T1: Load Output (AC)

5. Key Mechanical Features

• Removable Protection: The clear/blue plastic covers provide IP20 touch protection for the screw terminals.

• Thermal Management: For a 75A rating, this unit must be mounted on a suitable heatsink with thermal paste. Running at high current without a heatsink will cause permanent failure.

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Engineering Recommendations

1. Safety Margin: If you are using this for industrial heating elements (highly resistive), aim to use only 80% of the rated 75A capacity ($60A$) for long-term reliability.

2. Protection: It is highly recommended to use a Fast-Acting Semiconductor Fuse (Type gR or aR) in series with terminal 1/L1 to protect the internal SCR from short circuits.