This unit is a 12 Volt 2 coils push pull solenoid. Solenoids are basically electromagnets. They are made of a big coil of copper wire with an armature in the middle. The armature is normally a slug of steel or iron. When the coil is energised the slug is pulled into the centre of the coil. This enables the solenoid to pull from one end or push from the other. This type of solenoid is particularly strong and is activated with a 12 Volt battery. When the current is applied the solenoid moves and when it is removed it springs back to the original position. Many solenoids will only push or pull but this model can work in either direction.
Characteristics of the ES411AM2F solenoid
This unit is one of the most robust series of linear solenoids and is well suited to heavy duty applications. Their intelligent magnetic design allows for high holding force at a comparably low current. Therefore push pull solenoids are ideal for applications for which power consumption and heat dissipation are critical. The function is the same as a transistor but using an electromagnetic solenoid rather than a semiconductor to perform the switching. When the start button is pushed a small electric current is sent through the solenoid. This causes the solenoid to close a pair of heavy contacts thus relaying a large electric current which sets the engine in motion.
Benefits of using the ES411AM2F solenoid
These units are relatively inexpensive to replace if needed. Always be sure to check the serial number on the solenoid so that you are sure to replace it with the correct unit. It is best to check the solenoid first to determine whether it is the solenoid at fault or the battery. Without a solenoid the battery power is insufficient to turn the motor and the generator will not start. These small components are none the less imperative to the smooth starting of most generators and alternators.