Series 04 - Even more reliable switching, in even colder environments

EAO, the expert partner for human-machine interfaces, announces an important improvement to the operating temperature of the Series 04 industrial switch range.

Baureihe 04 - Sicher und zuverlässig schalten auch bei extremer Kälte bis -40 Grad Baureihe 04 - Sicher und zuverlässig schalten auch bei extremer Kälte bis -40 Grad

All Series 04 actuators and elements are now UL-certified to operate within -40°C to +55°C (previously -25°C to +55°C). Already a high-reliability product, this upgrade extends the Series 04 performance into even more challenging application environments.

The new specification was developed for the global public transport industry to ensure the EAO Series 04 remains dependable even in the extreme colds commonly experienced in Russia, Canada, Alaska and Greenland. Combined with sealing to IP65, this enhancement has applications and safety benefits for other types of equipment such as freezers, cold storage, refrigeration, and more.  

The Series 04 range includes pushbuttons, indicators, selectors, mushroom-headed switches, key switches and emergency-stop buttons. All components are modular which allows for easy assembly and customization to meet end-user requirements. Options include self-cleaning, snap-action and slow-make switching elements, a wide range of contact configurations, and contact materials to accommodate most application requirements.

Series 04 components feature front protection to IP65 and are rated up to 500VAC. This internationally recognised switch series fits into 22.5mm mounting holes for standard raised mounting applications or 30.5mm round and square cut-outs for flush mounting.

All products comply with international standards, including UL, CE, RoHS, CB – EN/IEC 60947-5-1, NFF 16-102, CSA, CCC, GOST, and German Lloyd.  UL approval is for copper wire, size 26-16.