Feature: 1. Stable Operation: Photoelectric isolation between control loop and load loop, thyristor output, zero current shutdown and zero voltage opening 2. Use in Cooperation: Use a proper radiator when in use, add forced air cooling when necessary, the control signal is compatible with TTL logic 3. Safety Upgrade: With safety cover, flame retardant engineering plastic shell, copper bottom plate, industrial grade welding process 4. Strictly Checked: Consistent 3 phase starting characteristics, strictly following the industry standards and controlling the quality 5. Professional Structure: Can be used for resistive loads, such as ovens, motors, electrical switch cabinets, automatic control Specification: Item Type: 3 Phase Solid State Relay Input Control Voltage Type: DC Control Voltage Range: 4-32VDC Control Current: Greater than 10ma LED Display: Yes Output Load Voltage Range: 480VAC On State Voltage Drop: Less than 1.5V Minimum Conduction Current: Greater than 50mA Off State Leakage Current: Less than 10mA Frequency Range: 45-65HZ Turn on Time: 10ms Turn off Time: 10ms Medium Withstand Voltage: 2500VAC/1 minute Working Environment Temperature: -35℃~75℃ Working Voltage Of Radiator: AC220V . Package List: 1 x Solid State Relay1 x Protective Cover Note: 1. When choosing a product, you should leave a different margin in the current grade according to the nature of the load. (For resistive load, it can be selected by 2‑3 times the load current. For inductive or capacitive load, it can be selected by 3‑5 times the load current, and for the motor it is more than 5 times.)2. According to the relationship between the load current and the ambient temperature, when the ambient temperature is high or the heat dissipation conditions are not good. The current capacity should be increased. In order to prevent the load from being short circuited during use, it is required to connect a fast disconnect switch or fast fuse corresponding to this product in series in the load circuit.3. In the case of inductive load, a varistor should be connected in parallel to the output terminal to prevent damage to the thyristor during overvoltage. Varistor (MOV) options: 430‑470V for 240V and 680‑750V for 440V.4. During installation, the contact exterior between the radiator and the product must be flat and clean, and a layer of thermally conductive silicone grease should be evenly coated on the exterior, and finally the screws with flat washers and spring washers should be tightened symmetrically.5. When the solid state relay is shut down for the first time, the fixing screws should be tightened while the residual temperature is still there to make the solid state relay base plate and the exterior of the radiator closely contact to achieve the ideal heat dissipation effect.6. The nominal current of different models of solid state relays is the nominal current when the ambient temperature is 40℃, so the heat dissipation must be sufficient 7. Be careful not to use a multimeter on the load side to betray the quality of the product 8.Random shell color(black or white).