ABB TRU3 1509LF Time Delay Relay

ABB TRU3 1509LF Time Delay Relay is a universal, programmable timer relay in the TRU3 family featuring a DPDT (two Form C) contact configuration on an 11‑pin socket base and a 10 A rating at up to 240 VAC. It accepts a universal control coil with options such as 19‑264 VAC or 19‑30 VDC, enabling use across a wide range of control circuits. Timing is highly flexible, with a programmable range from 0.1 seconds to 1000 minutes and a multi‑function design that supports common timer profiles like on‑delay, off‑delay, and interval timing. Variants include coil options around 28 V (DC), reflecting typical industrial automation voltage practices. The compact TRU3 unit is suitable for panel or socket mounting and is commonly employed in automation, process control, and sequencing where precise delay control is required to drive subsequent relays or logic circuits. With its robust contact rating and universal coil compatibility, it can switch modest loads such as motors, heaters, or auxiliary relays, making it a versatile timing solution for industrial control systems.