DRA3R48B4

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Contactors are electrical devices designed to control high current loads and provide power to circuits. Solid state contactors are composed of solid state semiconductors such as IGBTs (Insulated Gate Bipolar Transistors) and MOSFETs (Metal–Oxide–Semiconductor Field-Effect Transistors). These are being used instead of mechanical contactors due to their superior performance, increased reliability, and low cost. The DRA3R48B4 is a contactor specifically designed for industrial applications.

This contactor is rated 36A/2600VAC and its maximum switching power is 12.5KVA/2400VAC. It is composed of three phase N/C (normally closed) type contactors, and it can be used for single phase or three phase applications. It can also be used as a motor starter or as a relay for both AC (Alternating Current) and DC (Direct Current) applications. The contactor has a compact design and is dust-proof, making it suitable for outdoor use. The contactor has an ambient temperature range of -40°C to +50°C, allowing it to be used in a wide range of applications. In addition, it is certified for UL and CE safety standards.

The DRA3R48B4 contactor uses a three-phase bridge circuit with a single phase coil. The coil is connected to a bridge arm that can be triggered by a control signal, and it is connected to the center of the bridge. When the coil is energized, the bridge arm pulls the contactor’s contacts together, thus completing the circuit. When the coil is de-energized, the bridge arm releases the contact and the circuit is broken.

The contactor has several safety features including an arc-resistant plastic housing and a protective shield to prevent electrical arcing during operation. It also has a surge suppression switch for suppressing voltage spikes. The contactor is also equipped with an over current and over-temperature protection system, which prevents the contactor from overheating.

The DRA3R48B4 contactor is an efficient and cost-effective solution for controlling high current loads in industrial applications. It has a higher switching power and is more reliable than older mechanical contactors. It is an ideal choice for applications that require a dust-proof and arc-resistant design. Its superior safety features and high-temperature performance make it a reliable and robust contactor.

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