The EN range of power supplies has been specifically designed to provide a comprehensive and flexible range for engineers designing Intruder Alarm Systems to grade 3 under PD6662:2010 / EN50131, with built in quality and reliability. Comprehensive Battery Management. Deep Discharge Protection. Battery Fault Detection (grade 3). Double Battery Model has independent Battery Charging & Monitoring. Dedicated Fault Outputs. EPS Fault (mains fail). APS Fault (battery fault) (grade 3). PSU Fault (general fault). Internal LED PSU Status. Full Rated Current To Load + Battery Charging. Electronic Overload Protection. Mains Transient Protection. Output (mains on): 13.8V dc nominal. Load Output: 34 Maximum 3.0A 12 hours - 2.8/3.0A. Mains Supply: 230V +10%/-15%@50Hz. Environment: -10C to 40C @ 95%RH. Enclosure Type R: 410 H x 390 W x 90 D (Clam Lid). Box Sizes for battery: "34" models: 2 x 17 or 18Ah 3.0A**. Standards: EN3 - Grade 3 Environmental Class II. **Full current to load plus additional current to charge standby battery.