Specification Brand : Heschen BulletPoint1 : Load current: 15A, 50/60Hz BulletPoint2 : Load Voltage: 24-220VDC BulletPoint3 : Control Voltage: 4-32VDC BulletPoint4 : LED working instructions BulletPoint5 : CE ISO9001 listed Color : Black ConnectorType : Quick Connect CurrentRating : 15 amps ExternallyAssignedProductIdentifier : 7037377796000 IncludedComponents : Solid State Relay Module InputVoltage : 5 volts_of_direct_current ItemName : Heschen Single Phase DC/DC Solid State Relay, SSR-15DD, Input 4-32VDC, Output 24-220VDC, 15A 50-60Hz ItemPackageDimensions_Height : 1.3 inches ItemPackageDimensions_Length : 2.5 inches ItemPackageDimensions_Width : 1.9 inches ItemPackageQuantity : 1 ItemTypeKeyword : solid-state-relays Manufacturer : Heschen Material : Copper MaximumSwitchingCurrent : 15 amps MaximumSwitchingVoltage : 220 volts MeasurementSystem : Inch ModelNumber : SSR-15DD MountingType : DIN Rail Mount NumberOfItems : 1 OperatingVoltage : 5 volts_of_direct_current OperationMode : Automatic PartNumber : SSR-15DD ProductDescription :
SSR Solid State Relay are DC relay, Triac output.
The triac version of the zero switching relay is a cheap solution for resistive loads the zero switching relay switch when the DC sine voltage just crosses zero.
The switch turn off when the current crosses zero.