The CARLING TECHNOLOGIES part AA1-B0-52-640-5B1-C is a highly reliable and efficient circuit breaker suitable for various applications. This 1Pole breaker has a current rating of 40A, making it ideal for protecting electrical circuits handling loads up to 277VAC or 80VDC. Its compact design and durable construction ensure long-lasting performance and optimum protection against overloads and short circuits. Whether in residential, commercial, or industrial settings, this CARLING TECHNOLOGIES circuit breaker provides the required safety and reliability for your electrical systems.