GB/T 755-2025 & IEC 60034-1:2022: Mapping China’s Motor Standard to Its International Equivalent
In the global electrical machinery industry, standards alignment is key to cross-border trade, technical communication, and product certification. Many international partners have been asking: What IEC standard does China’s GB/T 755-2025 correspond to, and what are the differences? Here is a clear, industry-friendly explanation.
Core Correspondence
GB/T 755-2025 Rotating electrical machines — Rating and performance equates IDT (identical) to IEC 60034-1:2022, the latest international standard for rotating machines – Part 1: Rating and performance. This is the fundamental global standard defining ratings, operating conditions, thermal stability, performance requirements and test methods for rotating electrical machines.
Key Differences
Since GB/T 755-2025 is identical adoption of IEC 60034-1:2022, technical content is fully consistent. The few differences are structural and administrative:
1. Standard numbering & issuing body
GB/T 755-2025 is a Chinese national standard issued by SAMR and SAC; IEC 60034-1:2022 is an international standard issued by the International Electrotechnical Commission.
2. Formatting & normative references
Minor editing adjustments to fit Chinese standard drafting rules; no changes to technical indicators or test methods.
3. Application scope notes
Added explanations for domestic use in line with Chinese power supply, installation and certification practices, without conflict with IEC clauses.
Why This Matters
Full alignment with IEC 60034-1:2022 means: • Motors designed and tested per GB/T 755-2025 fully meet international market access requirements. • Technical parameters, test reports and quality documents are mutually recognized across borders. • It greatly facilitates export certification, customs clearance and technical cooperation for motor manufacturers.
Conclusion GB/T 755-2025 is fully synchronized with IEC 60034-1:2022 with near-zero technical discrepancies. For global buyers, importers and engineers, products complying with GB/T 755-2025 are reliable, internationally compatible and ready for global industrial applications.