This document introduces the features and technical data of ZJ5 and ZJ6 series relays, as well as the applicable conditions and installation requirements.
The ZJ5 and ZJ6 intermediate relays are used as auxiliary relays in AC protection devices, connected directly to the secondary circuit of current transformers and controlled by other relay contacts. The ZJ5/ZJ6 models are suitable for humid tropical regions, while the ZJ5TH/ZJ6TH variants are for humid subtropical areas.
The manual lists main technical data, normal operating conditions (altitude ≤2000 m, temperature -25 °C to +40 °C, humidity up to 90 %), internal wiring coil details, dimensions, installation guidelines, and ordering information. This manual is written in Chinese.
| Maximum overload capacity | 150 A for 4 s |
|---|---|
| Maximum operating altitude | 2000 m |
| Operating temperature range | -25 °C to +40 °C |
The relays can be used at altitudes up to 2000 meters.
They operate between –25 °C and +40 °C.
They can withstand an overload of 150 A for 4 seconds.
When AC current is less than 2.5 A and voltage below 220 V, the contacts can break 450 VA; for current less than 15 A and voltage below 220 V, they can carry 1000 VA.