ISGUS Timers Discontinued? Meet the BMT‑55 – A Reliable Alternative You Can Still Get
Mechanical timers like the ISGUS ISG12 have long been trusted for their durability and simplicity. But as of recently, the entire ISGUS mechanical timer line has been discontinued—leaving many engineers, farmers, and technicians searching for a dependable alternative.
Why Are ISGUS Timers Disappearing?
ISGUS mechanical timers—including the ISG12—are no longer being produced. The reason? The master watchmaker who hand-built them retired, and ISGUS chose not to continue the line.
As a result, ISGUS timers are now permanently discontinued. Once old stock runs out, it’s gone.
BMT‑55: The Best Replacement for ISGUS Mechanical Timers
Luckily, there’s a proven replacement: the Bolec BMT‑55, a 12-hour mechanical timer available in both standard and weatherproof models. This Australian-made solution is trusted across agriculture, industry, and machinery applications.
- No batteries or wiring required
- Manual dial with up to 12-hour timing
- DIN rail mounting and easy install
- Perfect for pumps, preheat systems, and control panels
Real Use Case: Farm Pump Replacement
One customer recently replaced a failed ISGUS ISG12 on a cattle station. With water systems at risk, we recommended the BMT‑55 in weatherproof enclosure. It was installed the same day without needing to rewire the panel.
The pump is back in operation—and the client is now using BMT‑55s across all of their equipment.
Compare Models
Have Questions?
We’re happy to help match your previous ISGUS setup with the right BMT‑55 model. Need a wiring diagram or compatibility check? Just ask.
Frequently Asked Questions
Is the BMT‑55 a direct replacement for ISGUS ISG12?
Yes. The BMT‑55 is designed to fit and function similarly to the ISGUS 12-hour mechanical timer.
Can I use the BMT‑55 outdoors?
Yes. The weatherproof enclosure version is perfect for outdoor or industrial use.
Is any wiring needed for the BMT‑55?
No. The timer is mechanical and battery-free—just mount it and go.