LDB120 BEL | Alldatasheet

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Technical content

LDB120 Series is a single phase 120 W integrated DIN Rail Battery Charger / DC UPS Power S upplies, suitable for wide variety of industrial applications. In case of mains or unit failure the DC UPS function enables the power supply to feed the load from the battery without any interruption, until the mains is recovered or the battery reaches the “Deep Discharge Voltage” threshold. These units have received excellent market approval for their high efficiency, excellent reliability and compactness. S imple but elegant look and easy installation make them market leaders for various industrial applications. LDB120 Series are isolation device s suitable for SELV an d PELV circuitry and are designed to be mounted on DIN rail and installed inside a protective enclosure.

  • Input: 120 - 240 VAC
  • Output: 12 or 24 VDC model dependent
  • To be used with Lead Acid batteries or lithium batteries (compatible with Lead Acid batteries)
  • Efficiency up to 86%
  • Economic solution for general purpose applications
  • Instantaneous LOAD switch BACKUP mode

2 LDB120 Series

tech.support@psbel.com LDB120-12 120 - 240 VAC (140 - 345 VDC) 1 12 VDC 7 A LDB120-24 120 - 240 VAC (140 - 345 VDC) 1 24 VDC 5 A Technical parameters are typical, measured in laboratory environment at 25°C and 240 VAC / 50 Hz, at nominal values, after minimum 5 minutes of operation. Input AC Voltage Range Nominal Range 120 - 240 VAC 100 - 264 VAC Input DC Voltage Range Rated 110 - 345 VDC Input Frequency 47 - 63 Hz Input AC Current Vin = 120 VAC Vin = 240 VAC 2.0 A 1.1 A Input DC Current Vin = 140 VDC Vin = 345 VDC 1.4 A 0.5 A Inrush peak current ² / I²t ≤ 24 A / 0.50 A²s Touch (Leakage) Current ≤ 0.6 mA Internal Protection Fuse Not user replaceable Fuse 3.15 AT Recommended External Protection 1 It is strongly recommended to provide external surge arresters (SPD) according to local regulations Fuse 4 AT or MCB 4 A C curve / Cartridge fuse Class CC 4AT 250 VAC 1 In order to be UL compliant use Listed Cartridge nonrenewable (JDDZ) fuse Class CC 4AT 250 VAC. 2 Peak current measured after 0.2 ms from main connection; 240 VAC/ 50 Hz; Ambient temperature at 25°C; Cold Start. Output Power 120 W Rated Voltage (Adjustable Voltage Range) LDB120-12 (to be set at 14 VDC for battery charging) LDB120-24 (to be set at 27 VDC for battery charging)

12 VDC (12 – 15 VDC)

24 VDC (23 – 28 VDC)

Continuous Current LDB120-12 LDB120-24 7 A 5 A Overload Limit LDB120-12 LDB120-24 11.5 A 6.5 A Short Circuit Peak Current LDB120-12 LDB120-24 > 20 A / 40 ms > 16 A / 80 ms Load Regulation ≤ 1% Ripple & Noise 3 ≤ 100 mVpp Hold up Time LDB120-12 Vin = 120 VAC Vin = 240 VAC ≥ 10 ms ≥ 80 ms LDB120-24 Vin = 120 VAC Vin = 240 VAC ≥ 10 ms ≥ 55 ms Protections

  • Overload/short circuit: Hiccup mode
  • Thermal protection
  • Output overvoltage Output Overvoltage Protection (Active) LDB120-12 LDB120-24 ≥ 18 VDC ≥ 33 VDC Battery Protections Against short-circuit with resettable fuse (9 A) Against reverse polarity connection Against deep discharge

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2021 Bel Power Solutions & Protection BCD.00856_AC Deep Discharge Cut-Off Voltage LDB120-12 LDB120-24 10.5 VDC ± 0.5 V 20.5 VDC ± 0.5 V Status Signals

  • LOAD ON PSU - green LED
  • LOAD ON BATTERY - amber LED
  • Dry contact (SPDT, 24 VDC / 1 A) Parallel Connection Not Recommended Efficiency LDB120-12 LDB120-24 > 83.5% > 86% Dissipated Power LDB120-12 LDB120-24 < 21 W < 20 W Battery Information Rated Voltage LDB120-12
  • LDB120-24 12 - 14.4 VDC 24 - 28.8 VDC Max Charging Current 0.8 A 3 Ripple and Noise are measured with 20MHz bandwidth, probe terminated with a 0.1μF MKP parallel capacitor. NOTE: Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range. Contact factory for details. Operating Temperature 4 UL certified up to 50°C - 40 to + 70°C Storage Temperature - 40 to + 80°C Derating LDB120-12 LDB120-24 - 0.75 W/°C over 50°C - 1.2 W/°C over 50°C Humidity Non-condensing 5 - 95% RH Lifetime Expectancy at 25°C ambient full load 167’953 h (19.1 years) MTBF at 25°C ambient full load, according to MIL-HDBK-217F > 600 000 h Overvoltage Category Pollution Degree EN 50178 IEC 60664-1 III Protection Class Class I Isolation Voltage Input to Output Input to Ground Output to Ground 4.2 kVDC 2.2 kVDC 0.75 kVDC Safety Standards & Approvals UL508 (certified) EN 60950 (reference) EN 50178 (reference) EMC Standards Emission EN 55022 (CISPR22) EN 55011 (CISPR11) Class A Class A Immunity EN 61000-4-2 EN 61000-4-3 EN 61000-4-4 EN 61000-4-5 EN 61000-4-11 Level 3 Level 2 Level 2 Level 3 Level 2 Protection Degree EN 60529 IP20 Vibration Sinusoidal IEC 60068-2-6 5-17.8 Hz: ±1.6 mm; 17.8-500 Hz: 2 g 2 hours / axis (X, Y, Z) Shock IEC 60068-2-27 30 g 6 ms, 20 g 11 ms; 3 bumps / direction, 18 bumps total 4 Start-up type tested: - 40°C, possible at nominal voltage with load deration.

4 LDB120 Series

Figure 1. Mechanical Drawing

  • Single phase:
  • L = Line
  • N = Neutral
  • = Earth ground ▪ LOAD + = Positive DC ▪ LOAD - = Negative DC ▪ BATTERY + = Positive DC Battery ▪ BATTERY - = Negative DC Battery
  • DC:
  • L = + Positive DC
  • N = - Negative DC
  • = Earth ground
  • Signaling:
  • SPDT dry contact NO NC COM NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.