Push the segments outward (or pull them inward, depending on the specific plastic molded casing direction—refer to the printed arrow symbol next to the segments).
Over the decades, Diehl became a major player in electronics, defence, and metering. The Multi Timer 181‑5 belongs to the company’s “appliance controls” division, which once made timers for ovens, washing machines, and other household devices. Today, Diehl is known for smart metering and defence systems, but enthusiasts still treasure its older electromechanical products.
Ensure 230V AC is actively reaching the motor terminals (1 and 2). diehl multi timer 181-5 pdf
The following sites are reputable for old European automation PDFs:
The is a legacy electromechanical 24-hour time switch used primarily for industrial and domestic automation, such as controlling heating systems, lighting, or pumps. While Diehl Controls has shifted focus toward electronic systems, documentation for the 181 series (often cross-referenced with Theben SUL 181 models due to shared design standards) remains available through manual repositories . Technical Specifications Time Cycle: 24-hour daily program. Push the segments outward (or pull them inward,
16A resistive load / 4A inductive load at 250V AC.
The Multi-Timer 181-5 was designed for a variety of applications where scheduled control is required, including: Today, Diehl is known for smart metering and
This article serves as your complete guide. We will cover exactly what the Diehl 181-5 is, its functions, how to locate its PDF manual online (including safe alternatives), and a detailed breakdown of its terminals and timing ranges.
Ensure no debris or forced pins are blocking the rotation of the outer ring.
This constant power keeps the clock motor running and maintains the time. The Switching Contacts (Terminals 3, 4, and 5)