PRELOAD CONTACTS
- Code / Model:
- Manufacturer:
- Department: Fuses and automatic switches
- Category of products: Automatic switches
- Sub-category: Machinery and apparatus for the manufacture of electrical appliances
- You've seen it before.: 7
Contactor Preload Circuit
A contactor preload circuit is a type of electrical circuit designed to reduce the inrush current when a contactor coil is energized. This helps protect the contactor and other components from damage caused by high initial currents.
The circuit typically consists of:
- A resistor
- A capacitor
- A timer
When the contactor coil is energized, the resistor limits the initial current flow. The capacitor helps to smooth out the voltage fluctuations and reduce the impact on the power supply. The timer allows the circuit to gradually increase the current flowing to the contactor coil over a predetermined period.
