Purpose:
The JL8 series integrated circuit current relay is a static, non directional, transient, AC current relay. Used as a starting element in power system transmission lines, motors, overload and short circuit protection. This series of products is an upgraded product designed specifically to replace DL series relays. It has high precision, low power consumption, fast action time, high return coefficient, and intuitive and convenient setting. Its setting range is 0.1A to 100A, and those with a setting range of 2A to 99.9A do not require a DC auxiliary power supply.

Relay model name:




Main technical parameters of JL8 series integrated circuit current relay:

3.1 Rated value
a) Rated AC current: 0.1A, 5A;
b) Frequency: 50Hz;
c) Rated auxiliary DC voltage: 48V, 110V, 220V.
3.2 Current Setting Range: 0.1A~100A (For setting ranges of 2A~99.9A, no auxiliary power supply is required)
3.3 Power consumption
1) At rated auxiliary DC voltage:
a) AC circuit power consumption: not exceeding 1.5VA;
b) DC circuit power consumption: not exceeding 4W.
2) Under the condition of no rated auxiliary DC voltage, the AC circuit power consumption of the relay at rated current shall not exceed 1.5VA.
3.4 Allowable range of DC auxiliary voltage variation: 0.8-1.1 times the rated value at 220V and 110V, and 0.9-1.1 times the rated value at 48V.
3.5 Action time
a) When the setting value is 1.2 times, the action time should not exceed 25ms;
b) When the setting value is doubled, the action time should not exceed 20ms.
3.6 Return time: The return time shall not exceed 25ms.
3.7 Return coefficient: The return coefficient is not less than 0.85.
3.8 Setting error: Under reference conditions, the current setting error shall not exceed 5%.
3.9 Contact Performance
The relay contacts have a breaking capacity of 50W in DC inductive load circuits with a voltage not exceeding 250V and a current not exceeding 2A (time constant of 5ms ± 0.75ms), and a breaking capacity of 250VA in AC circuits with a voltage not exceeding 250V and a current not exceeding 1A (power factor of 0.4 ± 0.1).
3.10 Insulation resistance
The insulation resistance between each circuit of the relay and the exposed non electrified metal parts and circuits without electrical connection should not be less than 300MW.
3.11 Dielectric Strength
Relay circuits should be able to withstand an AC test voltage of 2kV (effective value) and 50Hz between exposed non-metallic parts, as well as between coil circuits and contact circuits, for a duration of 1 minute. There should be no insulation breakdown or flashover phenomenon.
3.12 Working conditions
a) The usage location does not allow explosive media, and the surrounding media should not contain gases or conductive media that corrode or damage metals. It is not allowed to be filled with water vapor or have serious mold presence;
b) Strong vibrations and impacts are not allowed in the usage location;
c) The usage location should have equipment to defend against rain, snow, wind, and sand;
d) The usage location does not allow an external magnetic induction intensity exceeding 1.5mT.
3.13 Electrical anti-interference relays shall comply with GB7261 and GB6261 "Electrical anti-interference tests for static relays and protective devices".

Relay external dimensions and opening dimensions:
See Figure 1 in the general structural system for the structure of 10；
See Figure 3 in the general structural system for the 20 structure；
See Figure 7 in the general structural system for the 30 structure.



Ordering instructions:
6.1 Product model, name, structural form, etc. (refer to Article 2);
6.2 Rated value of auxiliary DC voltage;
6.3 Order quantity;
6.4 Special requirements for contact form, please specify separately.

Note: Please replace and replace the electromagnetic current relay according to the following table:

JL8 series integrated circuit current relay