The 515 series residual current transformer is mainly used in low-voltage power distribution such as 380V and 660V, or in drawer cabinets with relatively high density, to continuously detect and monitor the residual current at the installation node of the corresponding circuit.
The shell of this series of products adopts environmentally friendly flame-retardant ABS engineering plastics, ultrasonic welding technology, high magnetic conductivity nanocrystalline soft magnetic materials, and combines reasonable structural design and rigorous production technology. It has the characteristics of high precision, good balance characteristics, small size, high insulation strength, strong impact resistance, and easy installation. It can work reliably and stably in indoor environments.
In terms of structural design, according to customer needs, space for signal conditioning circuit boards is added, and circuits with signal processing and communication functions can be added inside the product to expand the functions of the product.
This series of products has a total of 7 specifications and models, which are suitable for residual current monitoring of cable loops. The minimum leakage current value can be detected to be less than 5mA, and the accuracy reaches and exceeds the national standard requirements of GB14287.2. The balance characteristics can be designed according to the use requirements.

The product shell color can be produced according to the customer's specified color to meet different color schemes.

Features: 

*Signal processing units can be added to expand product functions;
*Strong overload capacity, 20 times the rated current can be overloaded for a long time as needed;
*Excellent balance characteristics, small-size products meet the detector alarm threshold 30mA requirements;
*High accuracy: 0.5/1.0/3 levels of accuracy are optional;
*Compact design, small size, beautiful appearance
*Strong versatility and good interchangeability

Naming:

Color code:
0: black; 3: red; 6: blue; 8: gray;
The shell color specified by the customer is coded and classified according to the main color of the color system;
Normal use and installation conditions:

Installation location: Indoors.
Ambient temperature -10℃~＋40℃.
Ambient humidity The recommended relative humidity is not more than 80%.
Altitude Not more than 3000m.
Atmospheric conditions There is no serious pollution, corrosive and explosive media in the atmosphere.
No environment with significant frequent vibration and impact.
Storage temperature -20℃~＋75℃.
General technical indicators:

Balance characteristic parameters:

Product size corresponding chart:

The product has space for PCB board inside

*The maximum allowable size of the circuit board is 78mm*28mm
*The total height of the circuit board and the device is no more than 9mm in the middle and no more than 15mm at both ends; the height of the solder joint is no more than 3mm
*The fixed size of the circuit board is 74mm*21mm; the diameter of the fixing hole of the circuit board is 2.5mm

The length of the circuit board fixing hole is 74mm, and the height of the circuit board and components is less than 9mm

Schematic diagram of circuit board installation space