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Learn more by watching our NLS FDT16-16D | Single Channel Digital timer 16amp 24Hr / 7 Day Battery Backup video.
The NLS FDT16-16D is a compact single channel digital timer rated 16A 240V with a backup battery, designed for DIN rail mounting in domestic and light commercial installations. The FDT16-16D provides independent electrical control of circuits on programmed schedules, supporting both 24-hour and weekly timing modes. It complies with standard electrical installation practices and suits applications requiring automated on/off switching of pool pumps, garden lighting, outdoor fittings, and general loads up to 16A.
A digital timer on the switchboard eliminates manual switching and removes the risk of leaving a circuit running unintended. Garden and pool equipment can run on a preset schedule without daily intervention, and the LCD display makes it straightforward to review and adjust program settings on site. Licensed electricians spec timers into domestic upgrades and new constructions where automated plant control is required, choosing the FDT16-16D when budget and space are tight on the DIN rail.
The NLS FDT16-16D fits standard DIN rail and integrates into any switchboard layout without additional mounting hardware. The 15-day minimum battery backup preserves the programmed schedule during mains power outages, so outdoor and pool circuits remain on their routine without resetting when supply is restored. Quartz timing accuracy holds within 2 seconds per day, which is more than sufficient for typical lighting and plant control applications.
The NLS FDT16-16D is not suitable for outdoor installation, damp environments, or exposed wet locations. The IP20 rating protects against casual contact with internal parts but offers no protection against water splash or high humidity. Do not install the FDT16-16D outdoors, in bathrooms, laundries, or near swimming pool plant rooms where moisture exposure is certain. For outdoor or weatherproof applications, an IP66-rated enclosure must be used to house the timer.
Verified Sparky Direct customer reviews: NLS FDT16-16D Single Channel Digital Timer (FDT16-16D)
"This is a great little electronic timer relay programmable for 7 day cycle." — Gordon
"Does what it claims and at a very affordable price." — Chris
"Good product and easy to install and set up." — John
(FDT16-16D)
Yes. Installation of the FDT16-16D on a switchboard must be carried out by a licensed electrician. The timer connects to live terminals on the board and requires correct circuit protection (MCB or RCD) upstream. Installation must comply with AS/NZS 3000 and relevant state electrical codes.
The FDT16-16D has two contacts: one normally-open (NO) that makes a connection when the timer triggers, and one normally-closed (NC) that breaks a connection when the timer triggers. Most applications use the NO contact for standard switching (e.g., turning a pump on). The NC contact is available for fail-safe or logic circuits where you need a circuit to break instead of make.
The FDT16-16D contact is rated 2.5A at 250V AC for inductive loads such as motors. For motor pumps or compressors drawing more than 2.5A, you must install a contactor downstream of the timer. The timer triggers the contactor coil (low-current circuit), and the contactor handles the motor inrush. Check the load current before installation and add a contactor if the pump exceeds the FDT16-16D's inductive rating.
The FDT16-16D has an internal battery backup that preserves the programmed schedule for a minimum of 15 days during a mains outage. When power is restored, the timer resumes running the schedule from where it left off. The battery does not operate the load; it only keeps the program in memory and maintains the internal clock.
The quartz timing accuracy is ±2 seconds per day (at 25°C ambient). This means the timer may gain or lose up to 2 seconds in 24 hours, which is negligible for garden and pool applications. Over a year, the total drift would be under 12 minutes, requiring no manual adjustment for typical use.
The National Light Sources FDT16-16D is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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Warranty starts from Invoice Date
Domestic Use: 1 Year
Commercial Use: 1 Year
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These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | NATIONAL LIGHT SOURCES |
| SKU | FDT16-16D |
| Model # | FDT16-16D |
| Barcode # | 9336700011468 |
| Package Weight | 0.140kg |
| TYPE | VALUE |
|---|---|
| Type | Timer |
| Brand | National Light Sources |
| Rated Current (A) | 16 |
| Height (mm) | 85 |
| Width (mm) | 35 |
| Depth (mm) | 65 |
| Protection | IP20 |
| Mounting | DIN Rail |
| Battery Backup | 360 |
| Voltage (V) | 240 |
| Programming Type | Digital |
| Program Time | 24h/7d |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
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