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Learn more by watching our Cabac - Minute Mech Timer 3 Wire 240V 5 Amp HNS440TM | Ideal for run on exhaust fans video.
The CABAC HNS440TM is a 3-wire programmable minute timer rated 240V AC 50Hz 5A, designed for fans, motors, and incandescent loads with adjustable time delays from 1 to 60 minutes. The HNS440TM includes both timer and no-timer modes: a quick button tap activates timer operation, while a sustained 2-second press enables continuous run without timeout. Time is programmed by holding the button for 10 seconds to enter setup, then tapping once per minute of desired delay; the unit retains all settings after power loss and ships with a 30-minute factory default.
Bathroom and laundry exhaust fans are the primary application. Tradies specify the HNS440TM to prevent fans running indefinitely when occupants forget to switch them off. Timers prevent energy waste on unattended spaces and extend equipment lifespan by eliminating needless runtime—a recurring job cost in rental properties, retirement facilities, and commercial installations. The dual-function design gives occupants flexibility: spaces can run on automatic timer operation during peak hours or switch to manual continuous mode other times. The compact 51mm form factor fits standard wall boxes. The HNS440TM suits wire-wound transformers and fan motors without derating—a constraint many mechanical timers cannot match. Installation is straightforward: wire Active, Neutral, and Load lines to the three screw terminals, clip on the appropriate button (HPM or Clipsal), and program via push button. Multi-way switching is supported via the remote button (HNS020RB) or a standard mains-rated momentary switch, with remote wire runs up to 50 metres.
Licensed electricians value the HNS440TM for its configurable power-up behaviour (ON or OFF after mains loss) and motion detector compatibility with HNS050MD and HNS060MD motion sensors. In automatic lighting setups, the timer works as the cut-off stage behind a motion sensor, turning loads off after occupancy is no longer detected. The blue LED indicates device status and provides an expiry warning 10 seconds before timeout, helping occupants know when the load is about to switch. The LED can be set to always-on for locating the switch in dark spaces.
The HNS440TM is not suitable for wet areas, outdoor installations, or locations subject to splash or high humidity without additional protection. It is designed for indoor wall-mounted switch positions only and requires a protective enclosure if used in damp environments or temperatures outside the 0–50°C operating range.
Verified Sparky Direct customer reviews: CABAC Minute Mechanical Timer (HNS440TM)
"Quite small form factor, very good quality, nice feel, decent capacity." — Tom
"Great timer for Bathroom fans that keep getting left on. Easy to install." — Steve
"Easy to install and program. Tied in with a heat lamp to prevent lamp being left on." — BK
(HNS440TM)
The HNS440TM is rated 240V AC 50Hz 5A and is specifically designed for fan motors, wire-wound transformers, and incandescent loads. It handles 500VA fan motors and 1200W incandescent without derating, making it ideal for exhaust fans and heat lamps in domestic and light commercial installations.
Hold the button for 10 seconds until the LED flashes quickly (programming mode entered). Then tap the button once per minute of desired delay—for example, 10 taps for 10 minutes. Programming mode expires 10 seconds after the last tap; the new delay is stored in memory. You can program between 1 and 60 minutes; more than 60 taps results in the 60-minute maximum being stored.
Yes, the HNS440TM is compatible with the CABAC HNS050MD and HNS060MD motion detectors and works seamlessly as the cut-off stage in automatic lighting setups. Multi-way switching is supported via the HNS020RB remote button or any standard mains-rated momentary action switch wired across the Active and Remote terminals, with no limit on the number of remote switches provided total remote wire length does not exceed 50 metres.
Timer mode activates when you give the button a quick tap; the HNS440TM will switch the load off after the programmed delay (1–60 minutes). No-timer mode activates when you press and hold the button for 2 seconds until the LED turns off and then back on; in this mode, the load stays on indefinitely until you give the button a quick tap to turn it off. This flexibility allows different operation depending on the time of day or occupancy pattern.
The HNS440TM is an indoor-only timer and is not rated for outdoor or damp exposed locations. While commonly used for bathroom exhaust fans, the unit itself should be mounted on an interior wall and not exposed to direct splash or high humidity. For wet-area or external installations, use a protective enclosure rated for the operating environment.
The HNS440TM is supplied as a complete assembly with both HPM and Clipsal style push buttons included. The unit is ready to install once you wire it to the Active, Neutral, and Load terminals and select the appropriate push button for your wall plate. No additional parts or modifications are required for standard domestic installations.
The blue LED shows device status during operation. In timer mode, it flashes to indicate the programmed delay duration and blinks every 5 seconds to show the timer is active. During the last 10 seconds before timeout, the LED flashes to warn that the load is about to switch off. The LED indicator can be configured to always stay on if you want to use it to locate the switch in a dark space.
The CABAC HNS440TM 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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