The Elmdene STX range of switch mode power supplies has been specifically designed for EN54 compliant fire systems. Available in either 1A, 2A, 5A or 10A versions they are certified to EN54-4:1997, A1:2002 & A2:2006. The units include intelligent battery charging using Elmdene’s efficient EcoCharge technology, possess mains & battery monitoring with independent volt-free outputs and also feature battery deep discharge protection in the event of a prolonged mains failure.
The inclusion of LED indicators provides quick diagnostics of the status of the power supply, while a variety of enclosures off er the installer a choice of standby battery backup options (see table). Features • 27.6V dc output • Cost effective switch mode technology • Energy efficient ▪ More efficient in operation ▪ Saves power reducing power bills ▪ Longer life in the fi eld ▪ Less prone to failure • Intelligent battery charging and monitoring using Elmdene’s EcoCharge technology • Deep Discharge Protection • Remote fault signalling • Full rated current to load plus additional current for battery charging • LED indication: ▪ Mains status ▪ Output fault ▪ Battery fault ▪ Charger fault • Volt-free fault output - EPS: ▪ Mains fail • Volt-free fault output - PSU fault: ▪ Battery fault ▪ Charger fault ▪ Loss of output • Mains transient protection