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Learn more by watching our Cabac - Hourly Mech Timer 3 Wire 240V 5 Amp | HNS450TM video.
The Cabac HNS450TM is a 3-wire hourly mechanical timer switch rated 240V 50Hz, 5A maximum current for use with fans, motors, and iron core ballasts. The HNS450TM is programmable from 1 to 24 hours in 1-hour increments and includes both quick-tap and sustained-press operating modes. Manufactured in Australia to comply with EMC emissions and safety standards, the HNS450TM fits standard HPM and Clipsal switch plates.
Exhaust fans and heated towel rails often run unnecessarily, wasting energy when occupants forget to switch them off. A dedicated timer avoids the need for hourly manual intervention and prevents power from staying on overnight. The HNS450TM solves this problem with a straightforward mechanical timer that activates on a single button press and automatically cuts power after the programmed duration.
Licensed electricians value the HNS450TM for its modular, retrofit-compatible design that fits existing wall installations without rewiring. The flexible timer range (1–24 hours) suits everything from heated towel rails to pool pumps and garden lighting circuits. The durable mechanical mechanism operates reliably without programming complications, and the amber LED status indicator shows operation and remaining time at a glance. When mains power is restored, the HNS450TM automatically powers ON in timer mode—no reset needed on each outage.
The Cabac HNS450TM is not suitable for high-inrush loads such as compressors, large motors, or induction heating elements that exceed 5A or 1200W. Do not use the HNS450TM with dimmable lights, LED driver circuits, or any variable-load equipment. The timer is designed for on/off fixed loads only.
Verified Sparky Direct customer reviews: Cabac - Hourly Mech Timer 3 Wire 240V 5 Amp (HNS450TM)
"Perfect little switch." — SD
"Ideal for applications like bedroom heaters that draw less than 5A." — Chalkyt
"good price and fast delivery" — Matthew
(HNS450TM)
Yes. The HNS450TM is a 3-wire timer designed specifically for fans, motors, and iron core ballasts. The 3-wire configuration handles inductive loads that 2-wire timers cannot switch. Maximum load is 5A (1200W), so ensure the total circuit current stays within this rating.
Hold the button down for 10 seconds until the LED flashes quickly. Then press the button 1 to 24 times to set the desired hours. Release after your last press, and wait 10 seconds for the timer to store the new setting. One press = 1 hour, two presses = 2 hours, up to 24 hours maximum.
Yes. The HNS450TM is retrofit compatible and fits standard HPM and Clipsal style switch plates without modification. The timer is supplied with both HPM-style and Clipsal-style push buttons, so you can choose the correct fit for your existing wall installation.
The HNS450TM retains its programmed timeout setting in memory. When power is restored, the timer automatically powers ON in timer mode for the previously set duration. You do not need to reprogram after a power outage.
Yes, an optional remote momentary switch can be used (e.g., HPM EM870K or Clipsal 681M20P). Connect the remote up to 50 metres away. Note that the HNS450TM cannot enter boost mode or be programmed via the remote, only operated on/off.
The Cabac HNS450TM 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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