ABB CT-ARS.21S Time Relay - True OFF-Delay 24-240V AC/DC

The ABB CT-ARS.21S is a high-performance single-function electronic time relay designed for precision and reliability. Part of the CT-S timer range, this device provides a true OFF-delay function (delay on break) without requiring auxiliary voltage. It is built to handle a wide variety of applications with 10 selectable time ranges spanning from 0.05 seconds up to 300 hours. Engineered for durability in demanding environments, this relay features Easy Connect Technology to withstand high levels of vibration. It is designed for versatility, offering remote potentiometer connection options and global approvals to meet international standards. Whether you are working on standard industrial setups or specialized rolling stock applications, the CT-ARS.21S provides consistent performance across a broad voltage range of 24-240V AC/DC. Its tool-free mounting on the DIN rail makes installation and maintenance fast and efficient, saving time during setup and upgrades.