RE17RAMU timing function, supply range and changeover-contact setup
Schneider Electric RE17RAMU is a slim modular timer relay used for on-delay control sequences. Its front selector, time setting, supply and 1 CO output must match the original control logic. The shared collage is a controls-category image rather than an exact photo of RE17RAMU.
Technical specification and selection data
| Technical item | Verified value / selection note |
|---|---|
| Exact reference | RE17RAMU |
| Family | Harmony / Zelio Time RE17 |
| Timing function | On-delay, selectable time ranges |
| Time span | Approximately 1 second to 100 hours across selectable ranges |
| Output | 1 changeover contact, nominal 8 A |
| Supply | 24 V DC or 24–240 V AC, per current product data |
| Width | 17.5 mm |
Define the timing sequence
Record what starts the delay, when the output changes state and how the circuit resets. The RE17RAMU time range is selected on the front of the unit, so a seemingly identical replacement can behave incorrectly if the selector is left in another range. Verify the final timing with a real machine cycle.
Supply and load
Confirm the panel supply and contact load against RE17RAMU ratings. The nominal 8 A output is not a blanket rating for every inductive load. Review terminal numbers, conductor size and any downstream relay or PLC input before wiring a replacement.
Service documentation
Take a photo of the old dial and wire positions before removing RE17RAMU. After installation, test both energized and de-energized states and note the measured delay. A related RE17R code can implement a different function even when the module width looks the same.
Similar-looking Schneider references
The following codes resemble RE17RAMU in naming or appearance. Ratings, functions and connection details can differ; they are comparison references, not guaranteed substitutes for RE17RAMU.
RE17RCMU, RE17RHMU, RE17RLMU, RE17RMMU, RE17RMEMU, RE17RMMW
Before placing an order
Order RE17RAMU with the required delay function, supply and output contact details. Compare the timer program and terminal map before accepting an alternative to RE17RAMU.
For RE17RAMU, confirm the printed designation, current Schneider Electric documentation, installation conditions and any lifecycle notice before purchase or commissioning.
