The 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 and battery monitoring with independent voltfree 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.

Key Features:

• Certified by UL to EN54-4:1997 +A1 +A2.
• Up to 2A current to load at 27.6V dc nominal regulated output.
• Charging capability to support 1.2 to 7Ah batteries.
• Electronic overload protection shuts down output until overload or short circuit is removed.
• Battery Monitor detects battery missing, low battery, short-circuit or reverse connection or circuit
• impedance (Ri) in excess of 500mW, caused by connector or wiring problem/corrosion, within 4 hours.
• Battery charging circuit is energised only when a battery is correctly connected and the battery voltage is greater than 14 V.
• No loss of output during automatic connection of battery to load on loss of mains.
• Deep discharge protection disconnects battery from load when battery voltage falls below 21 V.
• Diagnostic indicator LED (Orange) (Internal).
• Fault indicator LED (Yellow) flashes on detection of output fault, battery fault, charger fault and mains failure.
• Mains indicator LED (Green) showing mains present Indicators check at start-up.
• Optional RS232 serial interface for fault reporting and diagnostics.
• Suitable to fit batteries up to 2 x 7Ah
• 'C' Box Power Supply - 275h x 330w x 80d (mm)
• Hinged Lid