Features: 1. Simple and convenient control mode, only requires an external potentiometer to achieve AC power adjustment. 2. External potentiometer has AC current; pay attention to insulation protection. 3. Built-in RC absorption to protect the product from instantaneous current impact. 4. No mechanical moving parts, long lifespan, high reliability; fast switching speed and low RF interference. 5. The product is small in size and internally filled with epoxy resin, making it shockproof, moisture-proof, and corrosion-resistant. Specifications: Item Type: Solid State Relay Brand: BERM Control Current: 4~20mA Control Mode: Current Control Frequency Range: 50/60Hz Installation Method: Bolted On-Off Time: 10ms Off-State Leakage Current: 10mA Working Environment Temperature: -40 ~ +80 Application: Widely used in ceramic machinery, petrochemical industry, food machinery, packaging machinery, textile machinery, plastic machinery, heating, cement, coal, medicine, entertainment facilities, and other automation control fields. It is especially suitable for environments with corrosion, moisture, dust, explosion protection, etc., and frequent switching. It is an alternative to AC contactors. Package List: 1 x Solid State Relay Note: Conductive silicone should be added to the contact surface between the solid state relay and the heatsink to improve heat conductivity.