The AURORE Theben (TBN) SUL 181D 240V Analogue Timer Switch is an industrial-grade 24-hour synchronous time switch engineered for precise automated energy management in Malaysian residential, commercial, and industrial electrical systems. Featuring a 96-switching segment dial with 15-minute granularity, a high-capacity 16A switching output, and a built-in 200-hour rechargeable NiMH battery power reserve, the SUL 181D ensures uninterrupted schedule retention even during local mains power outages. Designed for standard 35mm DIN rail mounting with DuoFix spring terminals, it offers effortless installation for distribution boards (DB boxes), outdoor lighting, water pumps, and automated signage.

Precision Engineering & 24-Hour Automation

At the core of the Theben SUL 181D is a high-precision quartz-controlled stepper motor delivering continuous accuracy with minimal drift (≤±1s/day at 20°C). The front panel features a clear 24-hour rotating clock dial equipped with 96 individual captive switching segments. Each segment corresponds to a 15-minute switching interval, granting users the freedom to program complex daily ON/OFF sequences simply by pushing the segments inward or outward. Clock hands provide an intuitive visual reference for the current time alongside integrated 12/24-hour identification.  

Integrated Power Reserve for Outage Protection

Power stability is a critical factor for automated infrastructure. The TBN SUL 181D includes an internal NiMH rechargeable battery reserve capable of keeping the quartz clock running for up to 200 hours (~8 days) without external AC voltage. Should a localized power failure, circuit trip, or grid interruption occur, the clock movement continues uninterrupted, ensuring your programmed schedule remains perfectly synchronized without requiring manual recalibration once power is restored.  

Heavy-Duty Switching Capacity & DuoFix Wiring

Engineered for demanding applications, the potential-free changeover contact handles up to 16A resistive load (250V AC, cos Ø= 1) and up to 4A inductive load (cos Ø = 0.6), as well as incandescent and halogen lighting loads up to 1100W. The unit incorporates dual-entry DuoFix spring terminals, allowing twin conductors (0.5 mm² to 2.5 mm²) per terminal position for tool-free, vibration-proof, and maintenance-free wire installation. 

Flexible Manual Override & Control

The device features an integrated 3-position manual selector switch directly on the front panel:

• Continuous ON (1): Overrides the schedule to force the load continuously ON.
• AUTOMATIC (AUTO): Executes the programmed 24-hour segment schedule automatically.
• Continuous OFF (0): Overrides the schedule to cut power completely.

Target Applications in Malaysia

• Commercial Signboards & Storefront Lighting: Automate night display lighting to activate only during peak customer hours.
• Domestic & Commercial Water Heaters: Scheduled heating cycles prevent standby energy loss in homes and accommodation facilities.
• Landscape & Street Lighting: Automatic evening activation for compound lighting, garden spotlights, and security lamps.
• Agricultural & Aquaculture Automation: Program precise timing cycles for irrigation pumps, oxygen aerators, and ventilation fans.

Q1: What is the AURORE Theben SUL 181D 240V timer switch used for?
A: The Theben SUL 181D is a 24-hour analog timer switch used to automate the switching ON and OFF of electrical equipment like outdoor lights, signboards, water pumps, and air conditioning systems. It mounts inside distribution boards (DB boxes) on a standard DIN rail to reduce energy consumption.

Q2: How do I program switching times on the Theben SUL 181D timer?
A: Programming is done by moving the 96 black segments on the front timing dial. Each segment represents a 15-minute interval. Pushing segments outward turns the connected device ON for that period, while leaving segments inward keeps the device OFF.

Q3: Does the Theben SUL 181D timer lose its settings during a power outage in Malaysia?
A: No, the Theben SUL 181D features an internal rechargeable NiMH battery power reserve that maintains full timekeeping accuracy for up to 200 hours (~8 days) during power cuts, preventing the clock from losing its current time.

Q4: Can I install the Theben SUL 181D timer switch in a standard DB box?
A: Yes, the SUL 181D is designed for standard 35mm DIN rail mounting, taking up 3 module widths (52.5mm), making it compatible with residential and industrial distribution panel enclosures.

Q5: How do I set the current time on the Theben SUL 181D timer?
A: Turn the central minute hand clockwise until the clock hands and the 24-hour dial line up with your current local time. Never force the main segment disc directly; always turn the central minute hand.

Q6: Where can I buy original AURORE Theben SUL 181D timers in Malaysia?
A: Original Theben TBN SUL 181D timers are available through authorized electrical wholesalers, industrial automation distributors, and verified online e-commerce stores across Malaysia.