Product features
1. No harmonic injection: because the conduction moment is triggered by the zero crossing of the silicon by wire, after the delay, the magnetic holding pull-in conduction will not produce harmonics.
2. Low power consumption: due to the use of magnetic holding relay in our company, the magnetic holding relay only consumes micro power at the moment of switching, and does not consume power normally; and because the contact resistance of the magnetic holding relay is small, it does not generate heat, and there is no need to add a radiator, which reduces the cost, avoids the burning phenomenon of thyristor, and truly achieves the purpose of energy saving and consumption reduction.
3. Strong anti-interference ability and high reliability: due to the photoelectric isolation between input signal and control circuit and control circuit and main circuit, the working performance is more stable and reliable (Note: the product adopts advanced intelligent control technology and industrial electronic components).
4. The co compensation and sub compensation models respectively adopt the invention patent energy storage zero crossing detection technology and photoelectric double zero crossing trigger technology. The mechanical contact and thyristor of the switch will not be damaged due to the contact adhesion or breakdown due to the inaccurate zero crossing detection, which greatly improves the reliability of the product.
Technical parameter
Rated voltage: AC 380V ± 20% 50Hz ± 10%
Rated current: 45A, 55A, 65A, three specifications
Working power supply: AC 220V ± 20% 50Hz ± 10%
Harmonic distortion rate of power supply voltage ≤ 5.0%
Control voltage: the control voltage is provided by the controller from 5-1v/10ma DC voltage
Power consumption of the machine: < 3VA
Repeat switching time: < 1s, after the composite switch is cut off, the capacitor can be re switched in only one second without waiting for 3 minutes of capacitor discharge time.
Magnetic holding relay continuous life: 1 million times
Overall dimension of composite switch (L * w * h): 140 × 110 × 109mm (type A), 159 × 95.5 × 90mm (type b)
Installation hole size: 119 × 90mm (type A), 140 × 80mm (type b)
Document download: 
LFK dynamic composite switch manual.pdf