If old Diehl pages are broken, use [web.archive.org] to capture older versions of the support site.
Start with the official Diehl Controls website. Use their support or download section. Search for “Zeitrelais 181-5” (German for time relay). If the direct PDF is unavailable, request it via technical support. diehl multi timer 181-5 pdf
Older electromechanical timers can fail due to motor wear, dirty contacts, or broken gear trains. The PDF includes diagnostic steps. If old Diehl pages are broken, use [web
A clear diagram showing:
| Parameter | Value | |-----------|-------| | Supply voltage | 230V AC ±15%, 50/60 Hz | | Power consumption | < 2 VA | | Time ranges | 0–3s, 0–30s, 0–3m, 0–30m, 0–3h (selectable) | | Repeat accuracy | ±0.5% of full scale | | Ambient temperature | -10°C to +55°C | | Output contacts | 2 changeover relays (8A at 250V AC) | | Protection class | IP40 front, IP20 terminals | Search for “Zeitrelais 181-5” (German for time relay)
You might wonder, “Can’t I just guess the wiring?” Absolutely not. The Diehl 181-5 is not a simple on/off switch. Here’s why the PDF manual is essential: