ABB 2TLA010030R1000 Expansion Relay Module E1T

ABB 2TLA010030R1000 E1T Expansion Relay Module is a safety expansion device designed to extend the outputs of ABB Jokab/ABB safety relays. Operating from 24 VDC, it provides four safety outputs with an off-delay of 0.5 seconds, enabling safe shutdown sequences that do not immediately re-energize. The module is designed for DIN rail mounting and is 22.5 mm wide, with IP20 protection, making it suitable for compact machine enclosures. Part of the E1T family, the 2TLA010030R1000 specifically denotes the 0.5 s variant; other E1T timing options exist (0 s, 1 s, 1.5 s, 2 s, 3 s) to match different safety application needs. The expansion relay does not perform logic on its own but expands the safety outputs of compatible safety relays, allowing additional control paths for devices such as emergency-stop circuits, safety interlocks, light curtains, and guard monitoring systems while maintaining overall system safety. Ideal for industrial automation where expanding safe-restart or safe-stop signaling is required without increasing cable complexity, this module integrates into standard ABB safety networks on a DIN rail, ensuring consistent performance within certified safety architectures.