HSR-3D504Z Theory Solid State Relay application PROTECTIVE Size Miniature Protect Feature Epoxy Type 1 relay HSR-3D504Z Type 2 power relay HSR-3D504Z Type 3 solid state relay HSR-3D504Z Type 4 SSR HSR-3D504Z Type 5 magnetic relay HSR-3D504Z Type 6 relay socket HSR-3D504Z Type 7 sa...