FCL Components Releases Compact, Lightweight, Higher-Voltage DC Switching Relay for Power and Automotive Applications

FCL Components America, Inc. today introduced the FTR-E1-HC, a lightweight, 60A 400VDC higher voltage switching relay ideal for both power and automotive applications.

With no specific polarity requirement for the connection of load terminals, and a low power consumption of approximately 1.2W at rated coil voltage, FTR-E1-HC eliminates the need to reduce the voltage applied to the coil to the holding voltage, avoiding the cost and space requirements of a holding voltage coil drive circuit.

The compact, single-pole PC board FTR-E1-HC relay, part of the FTR- E1 family, is one of the smallest in the HVDC 60A class, at 60A-400V.

With a dielectric strength of 5,000VAC (1 min.) between coil and contacts, and 2,500VAC (1 minute) between contacts, the FTR-E1 offers twice the insulation properties of similar relays. Non-polarized contacts enable the FTR-E1-HC to switch between charging and discharging the load, making this relay well suited for a wide range of applications, including electric vehicles, fast charging stations, photovoltaic power generation systems, hybrid construction machinery, and battery systems.

The FTR-E1-HC is plastic-sealed, and the plastic material complies with UL flammability standard 94V-0, which stipulates a burning time of ≤10 seconds and afterglow time of ≤30 seconds for each specimen.

The FTR-E1-HC also features FCL Components' Arc Extinguishing Technologies, which use a cleverly placed permanent magnet to extend the arc’s path within the same airgap. This ensures a compact, as well as a safe, robust, and affordable solution.

Available immediately, the FTR-E1-HC is lead-free and RoHS compliant. Please contact Sales@odonnell.com for more information!

TDK-Lambda announces the addition of higher power, three-phase AC input models to the DRB series of DIN rail mount power supplies

With 24V, 48V and 72V outputs, the products are rated for continuous operation at 480W or 960W and can deliver a boost of 720W and 1440W respectively for up to seven seconds. This, and a constant current overload characteristic, enables operation with capacitive and inductive loads. These power supplies also feature a very low energy inrush current upon initial start-up, reducing nuisance tripping of input circuit breakers. The DRB three-phase series can be used in a wide range of applications, including conventional switch cabinets, stand-alone machinery and industrial systems, as well as information and communications technology.

The units have a wide input range of 350 to 575Vac and are housed in a rugged metal enclosure with dimensions of 65mm (width) x 129mm (height) x 159.3mm (depth) for the 480W models and 100mm (width) x 129mm (height) x 171.9mm (depth) for the 960W. This saves space on the DIN rail for other components and reduces cost. A choice of screw terminals or push-in connectors are available for the input and output wiring. The DRB480 and 960 models have a high operating efficiency of up to 96.3% and a low stand-by power consumption of <2.3W when using the remote on-off function (inhibit). This reduces energy usage and contributes to a lower CO2 footprint of the entire system. Lower losses also reduce internal heating inside the power supplies, preventing electrolytic capacitor dry-out for long field life.

For higher power or redundant systems, the front panel DIP switch enables droop mode current sharing for parallel operation. These new models have a wide adjustment range of 22.5 to 29V (24V nominal), 45 to 56V (48V nominal) and 70 to 85V (72V nominal) to allow compensation for cable drops, ORing FETs or setting to non-standard output voltages. In addition to two LED indicators, a DC OK relay contact is available for remote monitoring and remote on/off is possible by applying an external voltage to the inhibit relay contact.

Input to output isolation is 3,510Vac, input to ground 2,210Vac and output to ground is 1,390Vac. The DRB models are convection cooled and rated for operation in -25 to +70°C ambient temperatures, with derating above 55°C.

The units are certified to IEC/EN/UL/CSA 62368-1, 61010-1, 61010-2-201 and are CE / UKCA marked to the Low Voltage, EMC and RoHS Directives. They meet EN 55011-B and CISPR11-B radiated and conducted emissions. The series also complies with EN 61000-3-2 (Class A) harmonic currents and IEC/EN 61000-6-2 immunity standards.

Further information on the products can be found at DRB960-3 Series Datasheet

For more information on TDK Lambda’s DRB960-3 Series please contact O'Donnell Associates North Inc. - sales@odonnell.com

Sneak Peak - TDK Lambda's RGB Series

The rugged RGB non-isolated DC-DC step-down converters are encapsulated in a five-sided aluminum case that’s rated for up to 115˚C operation. These modules have the industry standard 1/16th brick pin-out, are qualified to MIL-STD-810G for shock and vibration, and are designed for fan-less, conductioncooled applications. The series accepts a wide input range to accommodate various DC bus and battery voltages. The RGB modules come with standard features like remote On/Off, remote sense, output trim, and optional adjustable output current limit, making the modules a truly versatile power solution. The wide output adjustment range allows one model to be used in multiple DC output voltage positions, assisting inventory and part number reduction.

Samples available now! Distribution Stock available June 2024!

For more information on TDK Lambda’s RGB please contact O'Donnell Associates North Inc. - sales@odonnell.com