NewTrend · Weekly programmable time switch
Product overview
The AHC15A is a digital daily and weekly time switch for automatic load control. It stores up to 16 ON/OFF settings and combines an LCD, manual override and battery-backed programme memory in a 35mm DIN-rail housing. The hinged transparent cover protects the programming keys while leaving the clock display visible.
Technical specifications
| Model | AHC15A |
|---|---|
| Photographed supply version | AC 220–240V |
| Photographed contact marking | 30(16)A, 250V AC |
| Output contact | One changeover contact: 1NO + 1NC |
| Programme capacity | 16 ON/OFF settings per day or week |
| Minimum setting interval | 1 minute |
| Timer range | 1 minute to 168 hours |
| Display | LCD; weekday, time and operating state |
| Control modes | Automatic; manual ON/OFF override |
| Time accuracy references | Average error: 1 second / 24 hours at 25°C; written series hysteresis reference: 2 seconds / day |
| Power consumption reference | 4.5VA maximum |
| Battery reserve reference | Built-in rechargeable battery; written series reference: 60 days |
| Operating temperature reference | −20°C to +50°C |
| Mounting | 35mm DIN rail |
| Outline dimensions | 87 × 35 × 65mm; additional references shown on drawing |
Daily and weekly programming
Set switching times using the P, D+, H+ and M+ keys. Sixteen ON/OFF settings can repeat on selected days or across a weekly schedule. The source function graphic also lists countdown operation and an AM/PM display. Use MANUAL for local override and RESET when a reset is required.
Display and local controls
The front panel identifies the working indicator, LCD, hour, minute, day, clock, timer, reset and ON/AUTO/OFF controls. The transparent cover opens to give access to the keys.
Changeover contact and wiring
The illustrated version uses supply terminals 1 and 2 and a separate changeover contact at terminals 3, 4 and 5. The supplied connection example links the line feed to the common terminal and switches the illustrated load through the normally open contact. Follow the matching terminal drawing and the markings of the supplied unit.
Memory and supply-version references
The built-in battery maintains programme memory during loss of the supply. The written family reference lists a 60-day reserve and a 1.2V, 40mAh rechargeable battery. Battery chemistry is described inconsistently across the original text and illustrations, so no single chemistry is specified here.
The original family material lists 5V, 12V, 24V, 110V, 220V and 85–265V supply references and distinguishes AC-only from AC/DC products. These references do not establish every possible AC/DC combination. This listing follows the photographed AC220–240V version.
The same shared source text includes a 16(8)A contact reference and a 16A/30A family table. The photographed AHC15A is marked 30(16)A at 250V AC; its actual marking is retained in the gallery rather than replacing it with a different reference rating.
Dimensions and installation
Use the complete outline drawing for panel planning. The drawing shows 87mm overall height, 35mm width and 65mm depth, with 47mm, 45mm and 30mm local housing references.
Applications and supplied items
Typical illustrated applications include lighting, water heaters, automation, solar installations and gate control. Select the contact duty for the actual connected load. The original package description includes one digital timer and an English manual.
