ABB – RT9 (2TLA010029R0000) – Universal SIL3/PLe Safety Relay, 24 VDC

The ABB RT9 (part number 2TLA010029R0000) is a compact yet versatile safety relay designed for monitoring emergency stops, safety mats, light curtains, gates, and access systems. Featuring selectable single- or dual-channel input modes, manual or auto reset options, and two safety-rated relay outputs, RT9 achieves SIL3 / PLe / CAT4 performance. It also offers diagnostic output and supervised reset for enhanced safety. Ideal for compact safety control tasks in machines and automation systems.