Bel Power Solutions is one of the largest power supply manufacturers in the world and has a long history of providing leading edge, innovative power solutions. Under the MELCHER brand, Bel provides the leading manufacturers in the railway and transportation industry worldwide with high performance, rugged DC / DC and AC / DC converters. Bel Power Solutions in the railway industry
Bel Power Solutions provides leading manufacturers in the railway and transportation industry worldwide with high-performance, rugged DC / DC and AC / DC MELCHER™ brand converters.
With more than 40 years of design and manufacturing experience, MELCHER products are designed to meet the highest national and international standards for harsh environments, safety and electromagnetic compatibility and interference (EMC / EMI) as well as undergo rigorous and extensive engineering and design validation tests ( EVT / DVT), highly accelerated life tests (HALT) and highly accelerated stress screen (HASS) tests.
Our strict engineering guidelines ensure low component stress, thermal profiling and high phase margins for stability and dynamic response. Melcher RCM 150/300 DC-DC converters for railway applications. Melcher RCM 500/1000 DC-DC converters for railway applications. American Railway Engineering and Maintenance-of-Way Association (AREMA) compliant power systems. A Melcher HP series DC / DC converter. A DC / DC converter from the Melcher LR series. An LBC series battery charger. Melcher isolated PC-board mount DC-DC converters. DIN rail AC / DC and DC / DC converters by Melcher. Melcher compact PCI converters. The company also offers accessories for Melcher products. Melcher AC / DC and DC /DC products
There are literally hundreds of thousands of Bel Power’s MELCHER products installed around the globe, whether on rolling stock or trackside. Our MELCHER cassette DC / DC and AC / DC power converters designed for railway applications have successfully passed all tests and requirements according to the material fire safety of DC / DC and AC / DC converters according to EN 45545-1, EN 45545-2 (2013) for hazard levels HL1 to HL3.
The fire safety tests have been conducted at a certified lab. In addition the above the products also comply with national versions of fire and smoke standards, in particular DIN 5510-2 and NFF 16-101 (1988) classification I3 / F2.
Products features and benefits include: Compliance with International and national standards (EN, UL, AREMA, RIA, NFF), in particular EN50155 and 50121 Fire safety according to EN 45545 for hazard levels HL1 to HL3 Ultra-wide DC input voltage, up to 10:1 ratio, suitable for all common battery input voltages worldwide Extremely high efficiencies Fully featured, full fault protection: transient, over-temperature, over / undervoltage, overcurrent 3.3V to 96V output voltages with wide trim range Series and parallel or fully redundant configurations On / off control, current share and other options Extended ambient operating temperature to -40°C or lower on request Convection and conduction cooling with no derating up to 70°C All PC boards dip-varnished for high mechanical durability and humidity withstand, without use of potting material Shock and vibration resistance Basic or reinforced insulation, test voltages up to 3k VAC Multi platform approach for highest flexibility All products are fully compliant with the Restriction of Hazardous Substances (RoHS) directive LBC Series battery chargers
The LBC Series is a ruggedised battery charger consisting of two or three parallel independent AC-DC converters employing power factor correction (PFC) stages and insulated DC-DC stages to convert the three-phase input voltage 400 / 480 VAC (line to line) to a bus voltage suitable for 110V battery charging. The system includes a digital signal processor (DSP) for control and monitoring. Input voltage range 400 / 480Vrms 3-phase Output power up to 12kW High power density with 13W/in3 per unit 110VDC output is decoupled with a diode for redundant applications Output voltage for 110V battery (adjustable 85VDC-137.5VDC) Operating temperature -25°C to 55°C, without derating Controller area network (CAN) bus / Ethernet interface EN50155 and EN45545-compliant For railway applications Rugged 3U cassettes for 19in rack or chassis mount
The rugged MELCHER products offer the industry’s premier line of standard products for DC / DC and ACDC power conversion, including custom design capability for application specific power conversion solutions.
For more than 40 years Bel’s MELCHER lineup of DC / DC and AC / DC cassette-style power converters with extremely robust electrical and mechanical designs have demonstrated to provide consistent power to a diverse array of railway, signaling, communications, transportation and industrial infrastructure applications. DC / DC converters with extremely wide input covering battery applications from 12V to 220V nominal Universal AC input with identical form factors Inrush current limitation Reverse polarity protection Up to 300W output power High efficiency, up to 94.5% including input filter Ultra-wide output voltage adjustment Remote on / off control input Current share, redundancy Rugged aluminium extruded case, conformally coated assemblies Self cooling, no derating over the specified temperature range Compliance with EN50155, EN60571, EN50121-3-2, UL / EN60950 and national deviations (AREMA, RIA, NFF) Input / output overvoltage protection All products are fully transient protected No-load, overload and short-circuit protection Thermal protection Isolated PC-board mount DC-DC converters
Bel Power Solutions offers a wide range of PCB-mount DC-DC converters that are especially designed and manufactured for the railway and transportation markets. Various wide DC input voltage ranges with or without isolation from 7VDC-160VDC, including platforms with 10:1 ratio Output voltages from 3.3V-54V with trim ranges as wide as 0%-110% Vout nominal Wide operating temperature ranges with startup at -40°C or below and no derating to 70°C Dip-varnished circuits without potting material for maximum reliability Isolated converters with magnetic feedback and I / O test voltages up to 3k VAC Low output ripple and excellent dynamic response Maximum flexibility for modular-type platforms instead of custom designs High shock and vibration resistance Input overvoltage and under voltage lockout protection Current limit and short-circuit protection Thermal protection Output overvoltage protection (OVP) Input transient protection Non-isolated buck DC / DC converters
Bel Power Solutions offers a wide range of positive switching regulators designed as power supplies for electronic systems, where no input-to-output isolation is required. Their major advantages include a high level of efficiency, high reliability, low output ripple, and excellent dynamic response. DIN rail AC / DC and DC / DC products
The Melcher LX / LW series of industrial / transportation DIN rail power supply units (PSU) are designed for rugged and harsh environments, where reliability is critical, featuring single or dual outputs and battery charging options.
Bel Power Solutions RCM Series converters comprise durable power supplies for railway and transportation applications.
The RCM500 and RCM1000 Series of converters are features durable power supplies for railway and transportation use.
The Bel Power Solutions 0RQB-C2Q12x series features an isolated railway DC/DC converter that operates from a nominal 24 VDC source.
The 0RQB-30Y05L series features an isolated DC/DC converter that delivers 30 W of output power from a range of inputs.
The HP Series of compact DC-DC converters incorporates input and output filters, signalling, and protection features that are required for most railway applications.
Power in railway rolling stock originally involved traction, lighting and rudimentary signalling with typically raw 110VDC from the on-board batteries.
Bel Power Solutions has announced 0RQB-50Y Series, a rugged 50W quarter brick isolated DC-DC converter.
Bel Power Solutions announced the 0RQB-C5W24x and 0RQB-C5W54LG, a board mount, isolated DCDC converter that provides up to 162W of output power from a wide input range.
Bel Power Solutions has announced the TET4000-48-069RAH, a 4,000W power supply designed to provide the highest efficiency (Titanium) power conversion for data centres being built to Open Compute Project (OCP), Open Data Center Committee (ODCC) or Central Office Re-architected as a Datacenter (CORD) standards.
Bel Power Solutions has announced the expansion of its portfolio to include the TET3200-12-069RA, a 3,200W Titanium efficient AC-DC front-end power supply that can convert up to 277V AC into a main output of 12V DC for powering intermediate bus architectures (IBA) in high performance and high reliability servers, routers and network switches and applications.
Bel Power Solutions has announced the ACC750 (industrial) and MCC750 (medical) Series of convection cooled power supplies, which are available in a couple of single output voltages.
Bel Power Solutions has announced the ABS601 (industrial) and MBS601 (medical) Series of convection cooled sealed power supplies, which are fully potted and offer IP66/67/68 ingress protection.
Signal Transformer, a Bel group company, has released its High Current Toroidal Choke (HCTC) and High Current Toroidal (HCTI) Design Kit Combination.
Bel Power Solutions has announced the ABS400/MBS400 Series of convection cooled power supplies, which are sealed and fully potted, offer IP66/67 ingress protection and fit 1U applications.
Bel Power Solutions has announced the TET1500 Series power supply for servers, routers, network switches and other high availability applications such as storage appliances.
Bel Power Solutions has announced the PEC Series, a new series of power supplies that offers platinum level efficiency (up to 94%) for server, storage and networking applications.
Bel Power Solutions has announced the ABC401 / MBC401 Series of 400 W AC-DC power supplies in five different low-profile 1U packages, including open frame, enclosed, U-channel, perforated cover and vented cover configurations.
Signal Transformer, a Bel group company, has announced its High Current Toroidal Choke (HCTC) Design Kit, featuring 15 of its most popular HCTC part numbers in a single, compact package, enabling engineers flexibility during their design selection process, with multiple options to choose from.
Bel Power Solutions has announced the ABE1200 / MBE1200 Series of enclosed AC-DC power supplies.
Bel Fuse (NASDAQ: BELFA and BELFB) and premier global manufacturer of circuit protection devices, announces their 0ZT Series of high-temperature SMD resettable PPTC fuses for automotive, ethernet, and other applications which require a high operating temperature range of -40°C to 125°C.
Stewart Connector, a Bel group company, has introduced a new series of low profile Mid-Plane RJ45 connectors.
Bel group company Stewart Connector has added M12 X-Code to RJ45 cable assemblies to its offering of M12 harsh environment solutions.
Bel Power Solutions has announced the TET2200 Series, 2,200W power supplies that bring Titanium level efficiency to servers, storage and networking equipment.
Bel Fuse has released its 0685P Series of surface mount fast-acting chip fuses with high inrush current withstand capability in a single, consolidated series.
Signal Transformer has announced the latest product innovation for Power Over Ethernet (PoE) applications, the SPoE Surface Mount Transformer Series.
Bel Magnetic Solutions, a Bel group company, has announced a single port and eight-port 2.5GBASE-T MagJack ICM.
Bel group company Signal Transfomer has announced its new Wireless Charging Transmission Coils (WCC) in both Single and Multiple Windings for smart car applications, consumer products, controllers, wearable devices, robotic cleaners and drones.
Stewart Connector, a Bel group company, has released an addition to the SealJackTM series, with an IP67 rated RJ45 to RJ45 PCB coupler, ideal for harsh environment applications.
Bel Power Solutions has released the RCM60 (60 W) chassis-mount DC-DC converters, which are designed for railway applications where compactness and high reliability are required.
Bel Power Solutions has announced the expansion of its high power portfolio with the TXP4000 Series, a maximum 4,000W AC-DC power supply suitable for industrial, process and control, railway and machinery applications.
Signal Transformer has announced its new HCTC series common-mode toroidal chokes for design engineers and manufacturers specifying power supplies accommodating common-mode noise reduction and line filtering.
Bel Power Solutions has announced the TCP4000 Series of fanless, three-phase 4,000W AC-DC converters, suitable for a variety of industrial applications, including semiconductor lasers and plasma generators, as well as process and control applications.
Bel Fuse-Circuit Protection has announced the expansion of its 0ZCM Series of 0603 chip (package) size surface mount PPTC resettable fuses.
Bel Magnetic Solutions has released the single port 5GBase-T 60W and 100W 4-pair Power over Ethernet (PoE) MagJack® Integrated Connector Modules (ICM).
Bel Fuse-Circuit Protection has released the 0ZCF Series of 2920 chip (package) size surface mount PPTC resettable fuses for automotive and ethernet applications.
PPTC resettable fuses are designed for automotive and Ethernet applications.
A Bel group company Stewart Connector has announced the release of the Cat6 and Cat6A Multi-Axis RJ45 punch down modular plugs.
Bel Fuse-Circuit Protection has announced its 0680L Series of ceramic surface mount fuses with in-rush current withstand capability in a 2410 SMD package size.
Various models of Signal Transformer's ST series and DST Series of high isolation split bobbin low power transformers are recognised by UL as Inherently Limited Class 2 transformers per (UL 5085-3) and incorporate a UL 1446 Class F 155.0C Insulation System.
Bel Power Solutions, a Bel group company (NASDAQ:BELFA and BELFB) and premier global manufacturer of power management devices, today announced a new DC-AC inverter for commercial electric and hybrid vehicles.
Bel Power Solutions has released the ABC800 Series and MBC800 Series of U-Channel power supplies ideal for industrial (ABC Series) and medical (MBC Series) applications and available in a variety of single output voltages.
Bel group company Stewart Connector has released the M12 A-Code Series, targeting environments where rugged connectors are needed to power and communicate with equipment widely found in today’s manufacturing environments.
Stewart Connector has announced the single and multiport RJ45 connectors to support 2.5G Base-T Ethernet communications.
Stewart Connector has announced the release of its RJ45 Press-Fit Connector Series.
Bel Power Solutions released the PES2200 Series, 2,200W high-density power supplies with full digital control for servers, storage and networking equipment and other high-availability applications.
Stewart Connector has released specification of automotive-grade connectors that comply with SAE/USCAR-2 standards, designed for next-generation vehicles that utilise Ethernet communication inside the automobile.
Bel Magnetic Solutions has released the 2x1 1G 30W and 60W PoE MagJack ICM for Networking and Telecommunication applications.
Bel Power Solutions has unveiled its Melcher™ LR Series 300 W AC-DC cassette converters, which are designed for railway and rugged industrial applications.
Bel group company Stewart Connector has released a complete line of IP20 rated modular plugs complementing its standard RJ45 modular plugs.
Bel Magnetic Solutions has released a four-port high-power solution that offers maximum power, 100W or 1A, over standard Ethernet cable.
Bel Power Solutions has released the TET2500 Series, 2,500W power supplies, offering Titanium level efficiency to servers, storage and networking equipment.
Bel group’s Stewart Connector has released the USB 3.0 Type-A vertical connector.
Stewart Connector has released its USB 2.0 Type-B connectors for small, robust and reliable I/O connectors in compliance with universal serial bus standards.
Bel Power Solutions has released its SPSTET4 System (Power Modules, Shelf, Controller and Power Distribution Unit (PDU)).
Bel Power Solutions and Protection has released the TET4000 Series, a 4,000W power supply offering high efficiency (Titanium) power conversion for data centres.
Bel Magnetic Solutions has released a complete solution, combining an RJ45 Ethernet port with USB-A 2.0 connectors.
Bel group company Stewart Connector has released its Cat6 and Cat6A RJ45 punch down Modular Plugs.
Bel Power Solutions and Protection has released its TET2000 Series, featuring 2100W AC-DC power supplies that offer a 12VDC power source with titanium efficiency for servers, storage and switches in a compact form.
Bel Fuse-Circuit Protection has released the 0ZCN Series of surface mount resettable positive temperature coefficient (PTC) fuses.
Bel group company Signal Transformer has announced its new SMD and High Current Toroidal Inductor (HCTI) Design Kit for Multipurpose Applications.
Bel group company Signal Transformer has released its latest High Current Toroidal Inductor (HCTI) Design Kit.
Bel Power Solutions and Protection has announced an extension to the RCM Series, 150W to 1,000W chassis-mount DC-DC converters, with an optional pluggable connector version.
Signal Transformer, a Bel group company, has announced its new SCIHP0412, SCIHP0420 and SCIHP0420TB series of Surface Mount Inductors (SMD) for notebooks, tablets and multi-purpose applications.
Bel Power Solutions and Protection has released the SPSPFE3-05G and SPSPFE3-06G power shelves for rectification, system management and power distribution from three-phase AC (3W+N+PE) power into a main output of 12VDC.
Bel Power Solutions and Protection has released the ABH50 Series, which features 50W open-frame power supplies.
Bel Fuse-Circuit Protection has released the latest 0ADHC fuse series designed to protect both digital and analogue multimeters.
US-based power supply solutions specialist Bel Fuse is pleased to announce that the company will be ringing the closing bell at Nasdaq on 10 July this year.
Bel Power Solutions and Protection has released the 0RQB-30Y05L, which is the latest rugged 30W quarter-brick isolated DC-DC converter.
Bel Power Solutions and Protection has released the PES1600 Series 1,600W front-end AC and DC power supplies, which are designed for intermediate bus architectures (IBA).
Bel Power Solutions and Protection has released the 0RQB-C2Q12LG industry-standard DC-DC converter to provide high-performance Wi-Fi services.
Signal Transformer has released the EcoTrans Standard Series Transformers for stepping up or stepping down voltage, while maintaining isolation of the mains and output circuits.
Bel Power Solutions and Protection has released the RCM500 (500W) and RCM1000 (1000W) chassis-mount DC-DC converters to provide compactness and high reliability for railways.
A new 0ADA Series of fuses has been released by Bel Fuse-Circuit Protection in ceramic cartridge and pigtail, axial leaded AC and DC ranges.
Bel Power Solutions and Protection has released the new RCM150 (150W) and RCM300 (300W) chassis-mounted DC-DC converters, designed for compact and high-reliability railway applications.
Bel Power Solutions and Protection has released the SPSPFF3 System, a power modules, shelf, controller and power distribution unit (PDU).
The Power Stamp Alliance between four established power solutions suppliers has been established to provide collaborative solutions for 48V-to-low-voltage on-board DC-DC power converters.
Bel Power Solutions and Protection has announced its participation at the upcoming Open Compute Project (OCP) US Summit 2018 on 20-21 March at the San Jose Convention Center in San Jose, California, US.
Bel Power Solutions and Protection has revealed its new regulated bus converted, 0RQB-X3S11BG.
Bel Power Solutions and Protection has delivered the new LDX-B20, a microprocessor-controlled buffer unit rated at 20A and usable in 12V, 24V, 48V and 72V systems.
A revolutionary DIN Rail DC-DC converter LDD240-WU has been introduced by Bel Power Solutions. It offers flexibility, compactness and a high level of reliability.
Bel Power Solutions and Protection, a Bel group company and premier global manufacturer of power management devices, announces the 0RQB-C5U54LG, a next-generation DC/DC converter with an ultra-wide input range (4:1) and 2,250VDC isolation.
Bel Power Solutions and Protection has announces the 0RCY-F0S10B, a next-generation regulated bus converter with 45-56VDC input / 10.2VDC @ 49A output and offering up to 500W of highly efficient power in an eighth brick footprint.
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