Technical manual for JL14 series current relays covering specifications, installation, adjustment, and maintenance.
The JL14 series current relays are designed for AC 50 Hz voltages up to 380 V and DC voltages up to 220 V, providing over‑current and under‑current protection. The manual details the relay classifications, adjustment ranges, and the meaning of model suffixes such as Z, J, Q, S, and G.
Installation guidelines require vertical mounting, verification of the moving parts, and functional checks before operation. Operating conditions, technical data, and maintenance procedures—including periodic inspections and cleaning of contacts—are also provided. This manual is written in Chinese.
| Contact rated current | 5 A |
|---|---|
| Number of contact pairs | 2 pairs |
| Contact arrangement | One normally open and one normally closed, or one normally open or one normally closed |
| Working duty | 8 hours continuous |
| Short‑time duty frequency | 1200 cycles/h |
| Mechanical life | ≥ 1 000 000 operations |
| Electrical life | ≥ 500 000 operations |
| Inherent operation time | ≈ 0.006 s |
| Power consumption (DC) | ≈ 5.5 W |
| Power consumption (AC) | ≈ 5 VA |
| Weight | 0.8 – 2.5 kg |
The relay can operate in air temperatures no higher than +40 °C and no lower than –5 °C.
The relay is suitable for installations at altitudes not exceeding 2000 m.
The mechanical life is specified as not less than one million operations.