The Optimum 24‑Hour Quartz Timer Switch is a compact, high‑precision time controller designed for both DIN‑rail and surface‑mount installations. Its captive‑tappet mechanism divides the full 24‑hour cycle into 15‑minute intervals, giving you reliable on/off scheduling for lighting, HVAC, or industrial equipment.
Key benefits
- Volt‑free changeover – the switch operates without load voltage, protecting downstream circuits.
- Built‑in rechargeable cell – keeps the timer running for up to 48 hours during a mains outage, ensuring your schedule never skips a beat.
- Flexible mounting – five wire‑protect screw terminals allow easy wiring on panels, DIN rails, or directly on surfaces.
- Manual override – choose Fix On, Timed (default), or Fix Off for instant control when needed.
Technical highlights
| Specification | Detail |
|---|---|
| Dimensions | 106 × 72 × 52 mm |
| Weight | 160 g |
| Power consumption | 1 VA @ 230 V / 50 Hz |
| Resistive load | 16 A |
| Inductive load | 8 A (cos φ ≈ 0.6) |
| Minimum load | 100 mA @ 20 V AC/DC |
| Temperature range | –20 °C to +55 °C |
| Accuracy | ±2.5 s/day (main‑synchronised) |
| Minimum switching interval | 15 min |
Ideal for industrial automation, building management systems, and any application that demands precise daily timing with backup power protection. Search terms like “24‑hour timer switch,” “DIN‑rail quartz timer,” and “surface‑mount time switch” help you find this reliable solution quickly.





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