Import 240 Volt 12 Volt Transformer Ljb1 5a/10v 0.5 — Buy in wholesale FOB from Supplier in China

The LJB1 5A/10V 0.5 is a control-circuit step-down transformer designed to convert 240 volt input to 12 volt output, rated for 5 amperes at 10 volts with a 0.5 accuracy class. Manufactured by Deyang Dongfang Yoyik Engineering Co., Ltd. in Deyang, Sichuan Province, this unit serves instrumentation and relay protection circuits in thermal, hydro, and nuclear power generation environments. The 0.5 accuracy class indicates a maximum ratio error of 0.5 percent under rated conditions, which is standard for protective relaying applications where precise voltage transformation is critical. Deyang Dongfang Yoyik Engineering produces this transformer alongside a broader portfolio of turbine monitoring sensors, LVDT transmitters, and DEH system components for power stations.

The core construction typically employs grain-oriented silicon steel laminations with copper or aluminium windings, though the exact conductor material and insulation class for this specific listing should be confirmed with the supplier. Standard insulation for Chinese-manufactured control transformers of this rating is Class F (155 degrees C) or Class H (180 degrees C), with epoxy resin vacuum impregnation to withstand humidity and vibration in plant environments. The 5A secondary current suggests a 50 VA nominal burden capacity, typical for relay and metering circuits. Mounting is generally via DIN rail or panel bolt pattern, with terminal blocks conforming to GB/T or IEC standards for secondary connections.

Primary buyers include power plant EPC contractors, turbine OEM aftermarket departments, and maintenance procurement teams for utilities in Southeast Asia, Africa, and the Middle East. The transformer integrates into switchgear panels, generator excitation systems, and boiler control cabinets. For import, buyers should verify whether the unit ships as a standalone component or bundled with mounting hardware and terminal covers. Incoterms, sea freight routing from Shanghai or Shenzhen, and customs HS code 8504.31 classification for instrument transformers should be confirmed directly with Deyang Dongfang Yoyik Engineering.

Deyang Dongfang Yoyik Engineering Co., Ltd. operates from Huashan Plaza in Jingyang District, Deyang, Sichuan Province, China, a city historically anchored to heavy electrical equipment manufacturing through its proximity to Dongfang Electric Corporation infrastructure. The supplier holds a harbor trust tier on the platform, with a 0.00 percent response rate and zero recorded average response hours, indicating no buyer engagement data is currently available. The company positions itself as a comprehensive power station equipment and accessories firm integrating research and development, manufacturing, and sales, with particular concentration on thermal and hydropower plant spare parts.

The supplier's product catalogue spans turbine monitoring instrumentation (LVDT sensors, vibration speed transducers, eddy current probes), DEH and control system cards, pressure and temperature switches, and auxiliary electrical components including the LJB1 transformer series. Its stated involvement in wind and nuclear energy suggests diversification beyond conventional thermal plant supply, though specific certifications for nuclear-grade equipment are not listed and should be requested if required. Buyers should note that platform-verified response metrics are absent; direct outreach through the supplier's Deyang headquarters is advisable for technical clarification, lead times, and documentation prior to commitment.