Square D Harmony Modular Timing Relay — Asymmetrical Flashing, RE17LLBM
The Square D (Schneider Electric) Harmony RE17LLBM is a modular timing relay designed for asymmetrical flashing applications in industrial control and automation systems. With a solid state output, an operating voltage range of 24 to 240V AC, and a timing range spanning from 1 second to 100 hours, this relay provides versatile timing control for a wide range of machine and process applications.
Key Specifications
- Current rating: 0.7A
- Timing range: 1 second to 100 hours
- Function: Asymmetrical Flashing
- Output type: Solid State
- Operating voltage: 24 to 240V AC
- Standards: EN 61000-6-2, EN 61000-6-4, IEC 61812-1, EN 61000-6-1, EN 61000-6-3, 2006/95/EC, 2004/108/EC
- Model: RE17LLBM
- Manufacturer: Square D (Schneider Electric)
Features & Applications
The asymmetrical flashing function is used in applications requiring variable on/off timing cycles, such as indicator lights, alarm systems, and machine sequencing. The solid state output provides long service life without contact wear.
Multi-standard compliance with IEC 61812-1 and EMC directives ensures this relay is suitable for international deployments in industrial control panels, machine tools, conveyor systems, and building automation. Documentation including instruction manual, selection guide, spec sheet, technical drawing, and BIM file is available.







