This part of the IEC 60255 series describes the product safety requirements for measuring relays and protection equipment having a rated a.c. voltage up to 1 000 V with a rated frequency up to 65 Hz, or a rated d.c. voltage up to 1 500 V. Above these limits, IEC 60664-1 is applicable for the determination of clearance, creepage distance and withstand test voltage.

Standard:

PREORDER DIN EN IEC 60255-27 VDE 0435-327:2026-04

Measuring relays and protection equipment

Part 27: Product safety requirements

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