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Hitachi

Hitachi Industrial Technology (Thailand), ltd.

Earth Leakage Relays (ELR)

Function Standard Type Small Type
High Speed Type Time Delay Type High Speed Type Time Delay Type
Type-Form R-NZG R-NZGT R-NZF R-NZFT
Appearance

Zero-Phase-Sequence Current Transformer (ZCT)

ZR-15 ZR-30B ZR-58B ZR-65
65 mm 15 mm 30 mm 58 mm
ZR-80 ZR-100 ZR-120
80 mm 100 mm 120 mm

Zero-Phase-Sequence Current Transformer (ZCT) with Primary Conductors

Z-400B Z-600B Z-800B Z-1000B
400A 600A 800A 1000A
Z-1200B Z-2000B
1200A 2000A