HTCSEMI HT4145ARZ

The HT4145A is a low power controller for AC outlet ground fault interrupters. These devices detect hazardous grounding conditions, such as equipment (connected to opposite phases of the AC line )in contact with a pool of water and open circuits the line before a harmful or lethal shock occurs. Contained internally are a 26V zener shunt regulator, an opamp, and an SCR driver. With the addition of two sense transformers, a bridge rectifier, an SCR, a relay, and a few additional components, the HT4145A will detect and protect against both hot wire to ground and neutral wire to ground faults. Ease of application and long - term reliability.

• No potentiomenter required
• Direct interface to SCR
• Supply voltage derived from AC line - 26V shunt
• Adjustable sensitivity
• Grounded neutral fault detection
• Meets U.L.943 standards
• 450 μA quiescent current
• Ideal for 120V or 220V systems