The AMERICAN ZETTLER part AZ9841-1C-12DER is a high-quality automotive relay with a 40AMP capacity and a 12VDC coil. This relay features a Single Pole Double Throw (SPDT) configuration and is designed to handle demanding automotive applications. With its 280-ISO rating, it offers excellent insulation and protection against electrical interference. Perfect for various automotive electrical systems, this reliable relay ensures efficient and durable performance.