A zero cross solid state relay is meant for different types of loads. Its output is 12 to 275VAC, 25A. The over-voltage protection on the input and output have high immunity that is conforming to IEC/EN61000-4-4 and IEC/EN61000-4-5. It has a low zero cross voltage and a large control range of 3-32VDC with a input current limiter. The input has a green LED visualization. It has double removable input connectors, spring terminals and IP20 protection by flaps on terminals. The design meets EN60947-4-3 (IEC947-4-3) and EN60950/VDE0805-UL-cUL standards