RB121A-115VAC-DC ENTRELEC Interface Relay Ac

Review ENTRELEC Interface Relay 115v Ac/dc 50/60hz Used

The Entrelec RB121A is a versatile interface relay designed for use in various applications where AC and DC systems need to be interconnected. This relay comes with a 115V AC input and can be operated on both 50 and 60Hz frequencies, making it suitable for use in North American and European electrical systems.

At its core, the RB121A is a single-pole double-throw (SPDT) relay, meaning it can switch between two contacts based on the input signal. It features a robust, industrial-grade design with a die-cast aluminum housing and gold-plated contacts to ensure reliable performance and long service life.

The AC input of the RB121A is rated for a maximum current of 10A, and the DC output is rated for a maximum current of 5A. The relay operates with a coil voltage of 12V DC and a coil current of 0.45A. It also includes a built-in over-temperature protection feature that helps prevent damage to the relay in case of overloading.

To use the RB121A, you can connect the AC input to your AC source, and the DC output to your DC load. The relay is controlled by an external signal, which can be an AC or DC voltage or current. When the input signal is applied, the relay will switch its contacts, allowing the DC load to be powered by the AC source.

The RB121A is an essential component for various applications, including HVAC systems, solar power systems, and industrial automation systems, among others. Its high reliability, versatility, and robust design make it an ideal choice for applications that require the interconnection of AC and DC systems.

In summary, the Entrelec RB121A is a high-performance interface relay designed for use in applications where AC and DC systems need to be interconnected. It features a 115V AC input, a 5A DC output, and can be operated on both 50 and 60Hz frequencies. Its robust design, reliable performance, and versatility make it an essential component for various applications in industries such as HVAC, solar power, and industrial automation.

The Entrelec RB121A interface relay (model number 1015807) is a versatile electrical component designed for use in various automation and control applications. This relay operates on both AC and DC power sources, making it a suitable choice for systems with varying power requirements. Here are some pros and cons to help you make an informed decision about purchasing this relay.

1. Versatility: The Entrelec RB121A can operate on both AC and DC power sources, making it a flexible option for different applications.

2. Wide Operating Frequency: This relay can handle a wide range of frequencies (50/60Hz), which is beneficial for systems used in various geographical locations.

3. Robust Construction: The relay features a solid state design and is built to withstand harsh industrial environments, ensuring reliability and longevity.

4. Easy Installation: The relay has a simple wiring configuration, making it easy to install and integrate into various control systems.

5. Cost-effective: The Entrelec RB121A is competitively priced compared to other relays with similar features and capabilities.

1. Limited Current Handling Capacity: With a maximum current handling capacity of 1.5 Amps, this relay may not be suitable for applications requiring higher currents.

2. Limited Contact Ratings: The contact ratings of the relay may not be suitable for high voltage or high power applications.

3. Manual Operation: The relay does not have built-in automatic features, meaning it must be manually controlled through an external source.

In conclusion, the Entrelec RB121A interface relay (model number 1015807) is a reliable and cost-effective option for automation and control applications that require both AC and DC power sources and can handle a maximum current of up to 1.5 Amps. Its versatility, robust construction, and easy installation make it a popular choice for many industrial applications. However, it may not be suitable for high current, high voltage, or high power applications due to its limited contact ratings and current handling capacity.

If your application requires a relay that can handle higher currents or voltages, you may want to consider other options with more robust contact ratings and current handling capacity. However, if your application falls within the Entrelec RB121A's specifications and you value its versatility, ease of installation, and cost-effectiveness, then this relay could be an excellent choice for your needs.

Details:

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Entrelec RB121A-115VAC-DC interface relay 115v ac/dc, 50/60hz, 1015807. Ups next day am. Item is sold as pictured.

specifications genpurrelays:

• brand: Entrelec
• mpn: Rb121a-115vac-dc
• part type: Ac

general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

seller genpurrelays:

• # reviews: 21927
• city: kawkawlin, michigan
• rating: 99.8%

offer genpurrelays:

• started: may 31, 2025
• sold #: 27
• best offers: true
• availability: in stock
• options: ship-to-home
• prices: $12.26–$31.19
• item condition:
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  • Used
• in stock #: 3

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