ESR-40DA FOTEK Relay Box Fot

Review FOTEK 1pc Esr40da Relay 40a In Box New #fot

The Fotek ESR-40DA is a high-performance 40A relay module designed for various automation and control applications. This heavy-duty relay offers excellent reliability and efficiency, making it an ideal choice for industrial, commercial, or home automation projects.

Measuring 72mm x 63mm x 26mm (L x W x H), the ESR-40DA is compact and easy to install in tight spaces. The relay comes in a sturdy box package, which includes the relay module, a mounting plate, and all necessary wiring terminals. The mounting plate is designed to allow easy mounting of the relay on a DIN rail or any other suitable mounting surface.

The ESR-40DA is a double-pole, double-throw (DPDT) relay, which means it can switch two independent circuits. It can handle a maximum current of 40A and a voltage of up to 250VAC or 30VDC. The relay operates silently, making it suitable for use in environments where quiet operation is essential.

The relay is designed to provide long-lasting performance, thanks to its gold-plated contact pins and high-quality insulation material. It also features over-current, over-voltage, and short-circuit protection, which helps prevent damage to the relay and the connected circuits.

The ESR-40DA is easy to control, with a coil voltage requirement of 12VDC and a coil current of 1.5A. It also has a contact rating of 10,000 cycles, ensuring reliable operation even under heavy usage. The relay comes with a clear LED indicator, which illuminates when the relay is activated, making it easy to monitor the status of the circuit.

Overall, the Fotek ESR-40DA is a versatile and reliable 40A relay module that offers excellent value for money. It is suitable for a wide range of applications, from industrial automation to home automation projects, and is backed by Fotek's excellent customer service and support.

The Fotek ESR-40DA is a single-pole, double-throw (SPDT) relay with a rating of 40A and a coil voltage of 12V. Here are some potential pros and cons of buying this particular relay:

1. High Current Capacity: With a current rating of 40A, the Fotek ESR-40DA is suitable for applications that require handling high currents.

2. Universal Applicability: This relay can be used in various applications, including home automation, industrial control systems, and HVAC systems.

3. Compact Size: Despite its high current capacity, the Fotek ESR-40DA has a compact size, making it easy to integrate into various projects.

4. Reliable: The relay is made of high-quality materials and is designed to provide reliable switching for a long time.

5. Affordable: The Fotek ESR-40DA is priced competitively, making it a cost-effective option for those who need a high-current relay.

1. Coil Resistance: The coil resistance of the Fotek ESR-40DA is relatively high at 135 ohms, which may result in higher power consumption when the relay is in operation.

2. Manual Operation: The Fotek ESR-40DA is a mechanical relay and requires manual operation, which may not be suitable for applications that require fast switching times.

3. Limited Switching Frequency: Due to its mechanical design, the Fotek ESR-40DA has a limited switching frequency, which may not be suitable for applications that require high switching rates.

The Fotek ESR-40DA is a reliable and affordable option for those who require a high-current relay for their project. Its compact size makes it easy to integrate into various applications, and its universal applicability makes it suitable for a wide range of uses. However, its relatively high coil resistance and limited switching frequency may be a drawback for some applications.

If you require a high-current relay with fast switching times or a low coil resistance, you may want to consider an optocoupler or solid-state relay instead. However, if you need a reliable and affordable high-current relay for a project where switching times and coil resistance are not a major concern, the Fotek ESR-40DA is a good option to consider.

Details:

specifications genpurrelays:

• brand: Fotek
• mpn: Esr-40da
• model: Esr-40da Esr40da
• application: Branch Circuit
• contact material: Bronze, Brass

seller genpurrelays:

• city: hebron, kentucky
• rating: 99.3%
• # reviews: 306

payments genpurrelays:

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• other
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offer genpurrelays:

• in stock #: 5
• sold #: 12
• options: ship-to-home
• prices: $45.12–$195.30
• item condition: New
• started: december 30, 2025
• best offers: true
• availability: in stock

returns genpurrelays:

• policy: returns accepted
• method: money back
• paid by: buyer
• time: 14 days

general genpurrelays:

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

shipping genpurrelays:

• carrier: usps
• transit: 8-11 days
• type: fixed
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• class: standard