LDX-D50 Bel Fuse

LDX-D50 is a modern, CPU controlled device and responds to a wide range of applications where strong redundancy of DC power supplies is needed. By keeping the 2 power supplies (PS) hot (each operating at half of the load need) the system reaches higher MTBF than by using one PS hot and the other cold (as per standard ORing devices). It allows same life expectancy for the electrolytic capacitors and other sensitive parts of both PS and it prevents an excessive ageing of the unit that should be kept hot. LDX-D50 allows the paralleling of the output of any two identical PS with any current up to 50 A and voltages from 12 V to 85 V. The isolation between the units is achieved through power MOSFETs with advanced control circuitry. Several LDX-D50 can be interconnected in order to achieve redundancy for > 2 PS systems. LDX-D50 allows perfect current distribution between 2 PS, in case of their use for shared power. LDX-D50 provides perfect isolation between 2 PS in case of one unit failure and also the continuous delivery of energy towards a critical load. It is specially designed for high MTBF and compliance to a wide choice of PS and loads. Ultra Compact Redundancy Module CPU controlled Wide input voltage range: 12 85 VDC (on a single model) Out: 50 A Max Extremely low loss up to 99% efficiency Pluggable connectors Hot pluggable EASY acknowledgment of the power supplies availability status EASY correct current share status Up to 75C operating temperature with no derating 2 LDX-D50 Input DC Voltage Range UL certified 12 - 85 VDC Maximum Input Current UL certified 50 A Output DC Voltage Range UL certified 12 - 85 VDC Maximum Continuous Output UL certified 50 A Current Peak Output Current > 300 A < 4 m Conduction Resistance Maximum Dissipated Power < 10 W No Load Input Power < 1.5 W IN1 OK green LED IN2 OK green LED Fail red LED redundancy fault Status Signals SHARE current bargraph Redundancy OK dry contact (1 A / 30 V) Current share dry contact (1 A / 30 V) Overvoltage 100 V Input Protection Reverse polarity connection Operating Temperature UL certified up to 75C, No derating - 40C to 75C Storage Temperature - 40C to +80C Humidity Non-condensing 5 - 95% r.H. Overvoltage Category III Pollution Degree 2 (IEC664-1) Insulation Enclosure To Live Parts 0.75 kVDC UL508 (certified) Safety Standards EN60950 (reference) EN55022:2010 (CISPR22) Class A Emission EN55011:2009 /A1:2010 Class A EN61000-4-2:2008 Level 3 EMC EN61000-4-3:2006 /A2:2010 Level 3 Immunity EN61000-4-4:2012 Level 3 EN61000-4-5:2014 Level 1 EN61000-4-11:2004 /A1:2010 Level 2 Protection Degree EN60529:1989 /A:2013 IP20 5-17.8 Hz: 1.6 mm 17.8-500 Hz: Vibration Sinuosoidal IEC 60068-2-6:2007 2g 2 Hours / axis (X,Y,Z) 30 g 6 ms, 20g 11ms 3 bumps / direction, Shock IEC 60068-2-27:2008 18 bumps total NOTES: Technical parameters are typical, measured in laboratory environment at 25C and 24 VDC. Power rating, losses, efficiency, thermal behavior and start-up may change outside of the nominal rated input. Contact factory for details. Data may change without prior notice in order to improve the product. tech.support psbel.com