The K1K-00300-661 is a K1 Series delay-on-make time delay relay that initiates a timing cycle upon the application of input voltage. It operates on a 120VAC, 50/60 Hz input and features a knob-adjustable time delay ranging from 3 to 300 seconds. The device utilizes a digital timing circuit for a repeatability of ±0.5% and has DPDT (2 Form C) relay contacts rated for 10 amps at 240VAC. Housed in a compact, plug-in Case 6 with spade terminals, this relay is suitable for industrial control systems and OEM applications requiring reliable, low-cost timing control.