The 4-1617806-1, also known as commercial part number FC-325-SY8, is a high-performance, non-latching relay from the CII FC-325 series. It is specifically designed to operate with a 115 Vac, 400 Hz coil and features screw terminals with a stud mounting configuration. The relay incorporates a 3PST-NO double make/break contact design, enabling it to handle harsh inductive, motor, and lamp loads up to 25 amps. Its all-welded, hermetically sealed construction ensures robust performance in extreme conditions, with an operating temperature range of -70°C to +125°C. This device is ideal for demanding applications such as power distribution, fuel pumps, and guidance systems in the aerospace, defense, and marine markets.