The TBC TA-15HC Digital Time Switch is a high-precision weekly programmable electronic timer engineered for reliable control of lighting and electrical loads in residential, commercial, and light industrial environments. Featuring advanced digital programming with up to 28 ON/OFF cycles, DIN-rail mounting convenience, and exceptional ±1 second/day accuracy, this timer delivers professional-grade time control with long-term reliability backed by a 3-year battery backup system.
The TBC TA-15HC Digital Time Switch represents a professional solution for automated time and light control applications. This weekly programmable timer combines precision engineering with user-friendly operation, making it ideal for energy management, security lighting, and automated electrical system control.
Designed for DIN-rail mounting, the TA-15HC integrates seamlessly into standard electrical distribution panels. Its compact 35mm width allows for space-efficient installation alongside other modular devices. The device supports cable sizes up to 6mm², ensuring compatibility with a wide range of electrical installations.
With its robust 16A switching capacity and 5A inductive load rating, this timer handles demanding applications including fluorescent lighting, LED systems, heating controls, and motor-driven equipment. The high-accuracy quartz timing mechanism ensures reliable operation with minimal drift, while the 3-year battery backup protects programmed settings during power outages.
The intuitive 7-key programming interface allows quick setup of complex schedules without requiring specialized tools or software. Error code indication (E1/E2) provides clear diagnostic feedback, simplifying troubleshooting and maintenance. The manual override function offers instant control when automatic operation needs to be temporarily suspended.
Electrical Characteristics:
The TA-15HC operates on standard 220-240V AC supply at 50/60 Hz frequency. It delivers a maximum AC switching capacity of 16A at 250V AC for resistive loads, with a reduced 5A rating for inductive loads such as motors, transformers, and fluorescent ballasts. This dual-rating design ensures safe operation across diverse electrical applications.
Timing Accuracy & Programming:
The timer features quartz-controlled timing with ±1 second per day accuracy at 20°C ambient temperature. Programming flexibility includes minimum 1-minute intervals and maximum 168-hour (7-day) range, supporting up to 28 independent ON programs and 28 OFF programs. This allows for highly customized weekly schedules tailored to specific operational requirements.
Battery Backup System:
An integrated long-life battery maintains all programmed settings and real-time clock operation for up to 3 years during power interruptions. This ensures continuous schedule integrity without requiring reprogramming after outages.
Environmental Specifications:
The device operates reliably across an ambient temperature range of -20°C to +50°C, making it suitable for both indoor and temperature-controlled outdoor installations. The compact housing measures 86mm (H) × 35mm (W) × 65mm (D) and mounts on standard 35mm DIN rails.
Wiring Configuration:
Input terminals accept L (Line) and N (Neutral) connections. Output terminals provide three connection points (1/2/3) for load switching. Maximum cable size accommodation is 6mm², supporting substantial current-carrying capacity. The device is designed for integration with MCB-protected circuits for enhanced safety.
Standards Compliance:
Manufactured in accordance with IEC/EN 61095 standards for time switches for household and similar purposes, ensuring international quality and safety compliance.
| Parameter | Specification |
|---|---|
| Model Number | TA-15HC |
| Operating Voltage | 220–240V AC |
| Frequency | 50 / 60 Hz |
| AC Switching Capacity | 16A / 250V AC |
| Inductive Load Rating | 5A |
| Timing Accuracy | ±1 second/day @ +20°C |
| Battery Backup Duration | 3 Years |
| Minimum Programmable Time | 1 Minute |
| Maximum Programmable Time | 168 Hours (7 Days) |
| Maximum ON Programmes | 28 |
| Maximum OFF Programmes | 28 |
| Ambient Temperature Range | -20°C to +50°C |
| Maximum Cable Size | 6 mm² |
| Mounting Type | DIN-rail (35mm) |
| Height | 86 mm |
| Width | 35 mm |
| Depth | 65 mm |
| Input Terminals | L / N |
| Output Terminals | 1 / 2 / 3 |
| Display Type | LCD Digital |
| Programming Keys | 7 (P, D+, H+, M+, Clock, Manual, Reset) |
| Manual Override Modes | ON / OFF / AUTO |
| Error Indication | E1 (Start time not set), E2 (End time not set) |
| Standards Compliance | IEC / EN 61095 |
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