RS PRO Toroidal Transformer 230 V AC Primary, Dual 2 x 35 V AC Secondary, 2 Outputs, Surface Mount, 2.3kg, 123-3990

RS PRO 123-3990 Toroidal Transformer is engineered for high-efficiency electronic and industrial power applications. This transformer features a single primary winding suitable for 230 V AC at 50/60 Hz, ensuring stable and reliable power input. Dual secondary windings deliver consistent 2 x 35 V AC outputs, allowing for flexible use in series, parallel, or independent configurations according to application requirements.

With two independent outputs, the transformer is ideal for powering multiple circuits or systems simultaneously, making it an excellent choice for control panels, bench equipment, laboratory setups, and precision measurement systems. The open toroidal design ensures low magnetic flux leakage and enhanced electrical performance, critical for high-sensitivity electronic circuits and sensitive instrumentation.

The robust construction, 2.3 kg gross weight, and compact 115 mm diameter allow for straightforward integration in confined spaces. The surface mount type, with centre hole fixing, simplifies installation within racks, enclosures, or chassis.

Single 230 V AC primary input, supporting worldwide standard mains connections. Dual 35 V AC secondary outputs that can be connected according to project needs. Broad operating frequency (50 - 60 Hz) for compatibility in diverse geographical regions.

Wide operational temperature range (105°C min to 180°C max), suitable for demanding environments. Complies with leading international standards: UL506, UL51, EN60065 Class II, EN615581 Class II for assured product safety.

Designed for industrial automation, power supply design, test benches, professional lab equipment, and any application where clean, reliable AC voltage transformation is required. The leadout terminations allow easy and secure connections to external wiring or PCB pads.

With its combination of safety certifications, rugged build, and flexible outputs, the RS PRO 123-3990 Toroidal Transformer fits seamlessly into modern electronics and electrical systems, ensuring energy efficiency and stable voltage conversion for reliable long-term use.

Explore more industrial-grade transformers from RS PRO and upgrade the safety, efficiency, and reliability of your power delivery systems with EnvMart’s curated transformer category.