Dc Solid State Relay Ssr-40dd. Features: Optical Isolation Between the Control Loop and the Load Loop. Thyristor Output Zero Current Shutdown Voltage Zero Crossing. Use a Suitable Radiator when Using and Add Forced Air Cooling if Necessary. Control Signals Are Compatible with TTL Logic. Flame Retardant Engineering Plastic Shell Metal Bottom Pla Specifications: Place of Origin: Mainland DC Solid State Relay Contact Form: Normally Open Power Mode: Direct Current Input Parameters: Control Mode: 3-32VDC (DC) Input Current: 10mA Work Instructions: LED N-off Time: 10mS (milliseconds) Reliable Shutdown Voltage: Less Than 0.8VDC Output Parameters: Output Withstand Voltage: DC 12-480VDC Has a Higher 1200VDC 1700VDC Rated Operating Current: 10A.15A.25A.40A.60A.80A.100A On-state Voltage Drop: 0.70V Minimum on Current: 50mA Off-state Leakage Current: 10mA Maximum Inrush Current (10ms): 10 Times Rated Operating Current Performance Parameters: Medium Withstand Voltage: 2500VAC (1 Minute) Insulation Voltage: 2500V Insulation Resistance: 100M Working Temperature: -35 ~ 75 C Power Frequency: 50/60HZ Heat Dissipation Conditions: 25A with Radiator 40A Plus Fan Strong Cooling Load Current Safety Factor: Resistive Load 50% Inductive Load 30% Frequent Work or Poor Environment Should Be Derated Dimensions: 65.5L 45.0W 23.5H . We are an international based seller that will ship your order from abroad please at least a minimum 14 working days for delivery right now due to the ongoing delays in shipments globally. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.