Essential DIN-rail power supplies for cost-efficient automation designs

TDK Corporation has introduced the single-phase D1SE series to TDK-Lambda’s extensive range of DIN-rail mount power supplies. This entry-range series comes with an AC and DC input and is optimised for essential functionality without compromising performance or quality. The products are rated for continuous operation at 120W, 240W or 480W with a 24V output. With efficiencies of up to 95.1%, energy consumption and internal losses are decreased, lowering internal component temperatures and improving long-term product reliability.

Equipped with push-in wire terminations, the cost-effective series can be quickly and reliably mounted, decreasing installation times or enabling robotic automation. As well as a conventional 100VAC to 240VAC nominal input, the D1SE is safety-certified for operation from a 93VDC to 300VDC supply. Responding to market demand, the DC input addresses applications where the energy supply comes from a common DC bus voltage or a battery. Its compact size and easy installation make the series an optimal choice for various control cabinets, machinery, and production systems.

The 120W-rated model can deliver a boost of 156W for 80 seconds, the 240W-rated model 312W for 10 seconds, and the 480W-rated model 552W for an extended 200 seconds. The 24V output can be adjusted from 22.5V to 29V to permit compensation for cable drops, redundancy modules, or setting to non-standard output voltages. All three power supplies are available with or without a DC-OK contact. For applications in challenging environments, a PCB coating option is available.

The units are housed in a rugged metal enclosure with a width of 38mm for the 120W models, 44mm for the 240W, and 60mm for the 480W. This narrow design saves space on the DIN-rail for other components, lowering cost. All models feature a high-quality electrolytic capacitor, which extends its lifetime and decreases user costs. The warranty is three years.

Input-to-output isolation is 5000VDC, input-to-ground 3100VDC, and output-to-ground is 750VDC. The D1SE models are convection-cooled and rated for operation in -25C to +70C ambient temperatures, with derating above 55C.

The series is certified to IEC/EN/UL/CSA 61010-1, 61010-2-201, 62368-1 (Ed.3) and IS 13252-1 standards and is CE and UKCA marked to the Low Voltage, EMC and RoHS Directives. It meets 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.

Main applications include conventional switch cabinets, stand-alone machinery and industrial systems, information and communications technology.