CB1-SM-24V Relays

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Relays are essentially electrically-controllable switches. Automotive relays are used to control higher-power circuits such as those running the lights, starter motor, horn and other large current drains in a car. The CB1-SM-24V is a specific type of automotive relay that has some features that make it particularly suitable for use in automotive applications. We\'ll look at the application field and the working principle of this relay in more detail.

One of the main advantages of the CB1-SM-24V is that it is a low-cost, robust design that makes use of a polyamide casing which is resistant to most chemicals and mechanical shock. This makes it ideal for use in engine compartments and similar hostile enviorments. The contacts are hard-shelled with tin-plating for a high resistance to corrosion, which is important considering that most starter circuit contacts are sitting directly exposed to water, air, dust and mud. It also has a high dielectric strength so it can be used in circuits that have high voltage signals.

The CB1-SM-24V is designed to be used in 12V and 24V applications. It has a rated operating voltage range of 12V to 24V, with a coil resistance of approximately 200 ohms. Its coil is designed to provide a low current draw at the rated voltage so as to reduce the current taken from the battery of the car. This helps to conserve battery power and prevent the relay from damaging the car\'s electrical system.

The CB1-SM-24V features two 5-pin, Type-A contacts, each of which is arranged in a 2 x 2 configuration. This makes the relay well-suited for applications like starter motors. When energized, electricity will flow through the Type-A contacts from the battery to the starter motor, allowing it to start. The Type-B contacts are typically used for an indicator light to alert the driver when the relay has been activated.

The working principle of the CB1-SM-24V relay is fairly simple. When the circuit is energized, the coil will generate a magnetic field which will act on the armature, causing it to move. This motion will close the Type-A contact, allowing electricity to flow through the circuit and activating the starter motor. When the circuit is de-energized, the armature will move back to its original position, thus opening the Type-A contact and breaking the circuit.

In summary, the CB1-SM-24V is a low-cost, robust, and reliable automotive relay that is capable of handling up to 24V. It is particularly well-suited for applications such as starter motors since it has two 5-pin Type-A contacts arranged in a 2 x 2 configuration. The working principle of the relay is very simple: when the coil is energized, it creates a magnetic field which will then act on the armature and close the Type-A contact, allowing electricity to flow and activate the starter motor.

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