Advanced MXS-651 Spare 24V 5.0A EN54-4 PSU & Battery Charger

The Advanced MXS-651 is the spare 24V 5A EN 54-4 power supply and battery charger, supplied without an enclosure. Advanced lists it in the same range as the MXP-651 5.0A boxed power supply units. It suits fire alarm systems that need a 24V EN 54-4 supply, as well as EN 12101 and AOV systems.

It is a high-efficiency switch-mode unit with intelligent battery charging, mains and battery monitoring and two independent volt-free outputs. Deep discharge protection disconnects the battery if there is a long mains failure, and LEDs give quick status diagnostics.

Key features

• Spare PSU module, no enclosure
• From the same range as the MXP-651 5.0A boxed PSU
• Universal AC input
• Certified by VdS to EN 54-4 and EN 12101-10
• Independently monitored dual 27.6V DC outputs
• Two independent volt-free outputs
• Intelligent battery charging with mains and battery monitoring
• Deep discharge protection: battery disconnected below 21.6V
• Self-resetting battery fuse protection
• No output interruption on changeover between mains and battery
• Status LEDs for quick diagnostics

Technical specifications

• Part code: MXS-651
• Description: Spare 24V 5A EN 54-4 PSU and battery charger (no enclosure)
• Input supply: 195-265V AC, 50Hz nominal
• Output voltage: 21.6V DC (Umin) to 28.8V DC (Umax)
• Output current (as MXP-651): 5.7A continuous load (ImaxB), 4.0A battery charge (ImaxA), based on 24Ah batteries
• Inrush current: 25A max at 25°C, 230V AC, for 10ms
• Mains fuse: T3.15A 20mm 250V AC HRC
• Temperature: Operating -10°C to 40°C at 95% RH; storage -20°C to 80°C
• Fault output: Volt-free changeover contacts (SPDT), 1A at 30V DC
• Status indication: Mains, Battery Fault, PSU Fault, Diagnostic, Output 1 and Output 2