Celduc Relais Solid State Relays SO445320

The SO445320 is a phase angle controller for resistive loads, operating from 100 to 280 VAC and rated for 50 A RMS. It features an analog potentiometric input with a 10 to 20 kΩ range, and is powered by 8 to 30 VDC. The device includes an integrated varistor for overvoltage protection, supports 40 to 70 Hz line frequencies with self-adaptation, and meets EN60947-4-3 and EN60950/VDE0805 standards for reinforced insulation. It has IP20 protection, a thermal resistance of 0.45 K/W from junction to case, and must be mounted on a heatsink. Physical dimensions are not specified. The unit weighs 65 g and operates from -40 to +90 °C.