DTN303W-02 SUMITOMO Relay Fnip

Review SUMITOMO Relay Fnip

The Sumitomo Electrics DTN303W-02 is a versatile and reliable AC contactor relay designed for various applications in industrial automation, HVAC systems, and other electrical equipment. This single-phase, normally open (NO) and normally closed (NC) relay is a part of Sumitomo Electric's DTN series, known for their high-quality components and long-lasting performance.

The DTN303W-02 measures 122mm (W) x 75mm (H) x 48mm (D), providing a compact size suitable for most applications. It has a rated current capacity of 30A and a voltage rating of 250V AC, making it suitable for handling medium current loads. The contacts are rated for 10,000 make-and-break cycles, ensuring a long service life.

This relay features a clear, blue LED indicator, which illuminates when the contacts are closed, providing a visual confirmation of the relay's status. The DTN303W-02 also includes an overload protection function, which automatically disconnects the load when an overcurrent condition is detected, preventing damage to the relay and the connected equipment.

The DTN303W-02 is designed with a robust construction, featuring a die-cast aluminum housing and a robust contact mechanism. It also comes with a built-in thermal protector, which protects the contacts from overheating. The terminal blocks are securely screwed, ensuring a reliable connection.

The DTN303W-02 is easy to install and operate. It can be mounted vertically or horizontally, depending on the application requirements. The terminal block is designed for easy wiring, allowing for quick connections and secure termination of the wires. It also includes a test switch, allowing for easy testing of the relay without disrupting the system.

In summary, the Sumitomo Electric DTN303W-02 is a high-quality, versatile, and reliable AC contactor relay suitable for various industrial and automation applications. With its compact size, high current capacity, robust construction, and user-friendly features, it provides a reliable and efficient solution for managing electrical loads.

Sumitomo DTN303W-02 Relay: A Detailed Analysis of Its Pros and Cons

The Sumitomo DTN303W-02 is a 30 Amp, 270V AC, Normally Open (NO) and Form A relay with a Fast Normally Open (FNO) contact. This relay is widely used due to its unique features and specifications. In this analysis, we will discuss the pros and cons of buying a Sumitomo DTN303W-02 relay.

1. High Current Capacity: The Sumitomo DTN303W-02 can handle a current of up to 30 Amps, making it suitable for heavy-duty applications.

2. Fast Contact Operation: It has a fast contact operation of 10 milliseconds, ensuring quick switching and minimizing contact bounce.

3. Robust Design: The relay's robust design ensures that it can withstand harsh environments, making it suitable for industrial applications.

4. High Voltage: The relay can operate at a voltage of up to 270V AC, making it suitable for various applications.

5. Normally Open Contact: The NO contact type allows the relay to disconnect the circuit when the coil is de-energized, ensuring safety and preventing unintended operations.

1. Limited Coil Voltage: The relay operates only on AC voltage, and its maximum coil voltage is 240V.

2. Large Size: The Sumitomo DTN303W-02 is larger than some other relays in its class, which may limit its use in space-constrained applications.

3. Higher Cost: Compared to some other relays in the market, the Sumitomo DTN303W-02 is more expensive due to its high current capacity and fast contact operation.

The Sumitomo DTN303W-02 relay is an excellent choice for applications that require high current capacity, fast contact operation, and can accommodate its larger size. Its robust design and high voltage rating make it suitable for industrial applications. However, its limited coil voltage and higher cost may be a concern for some users. Ultimately, the decision to buy the Sumitomo DTN303W-02 relay depends on the specific requirements of your application and your budget.

If your application requires a high current capacity, fast contact operation, and can accommodate the larger size, then the Sumitomo DTN303W-02 relay is a great choice. However, if your application has limited space or requires a lower cost option, then you may want to consider other relays with similar specifications but smaller sizes and lower prices. Always ensure that the relay you choose meets the specific requirements of your application and is safe to use.

Details:

The product must be the original item shipped, with matching serial numbers if applicable. A new, unused item with no signs of wear. Special instructions. Manufacturer part number: DTN303W-02.

The item may be missing the original packaging. Sumitomo DTN303W-02 relay electromagnetic relay for industrial voltage : ac480v. 2-year MRI shield protection plan included. Most items are in stock when they listed.

Sumitomo DTN303W-02 relay manufactured by Sumitomo.

specifications genpurrelays:

• brand: Sumitomo
• mpn: Dtn303w-02

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• # reviews: 22432
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• started: march 13, 2026
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