3658A EMS Relay Coil Volts Vdc

Review EMS Relay #3658-a Coil Volts Vdc Lot Of Pieces

The EMS 3658A relay, with part number 3658-A, is a versatile and reliable electromechanical switching component designed for various automotive and industrial applications. This relay operates on a voltage range of VDC, making it suitable for use in 12V systems.

The 3658A relay is a single-pole double-throw (SPDT) type, which means it can switch a single contact between two terminals. It's constructed with a robust and durable plastic housing that protects the internal components from the elements and potential damage. This relay's compact size of approximately 34mm x 22mm x 11mm (1.34 inches x 0.87 inches x 0.43 inches) makes it an ideal choice for space-constrained applications.

Inside the housing, the EMS 3658A relay features a gold-plated contact system that ensures reliable and efficient switching. The coil of this relay requires a minimum voltage of VDC to activate, and it consumes a maximum current of 250mA during operation. The contacts can carry a maximum current of 10A and a voltage of 250V when the relay is energized.

The EMS 3658A relay comes with a built-in diode across the coil to protect against inductive voltage spikes when the relay de-energizes. This diode ensures that the coil is not damaged by back EMF generated during de-energization.

This relay operates at a temperature range of -40 C to 85 C (-40 F to 185 F), making it suitable for use in various environments. Overall, the EMS 3658A relay is a dependable and versatile switching component that can handle a wide range of applications, making it an excellent choice for those seeking reliable performance and ease of use.

The EMS 3658A relay is a commonly used electromechanical switch in various applications, particularly in HVAC and industrial automation systems. When considering purchasing this relay, it's essential to weigh its pros and cons to make an informed decision.

1. Robust Design: The EMS 3658A relay is known for its rugged construction, making it suitable for harsh industrial environments. It can withstand high temperatures and vibrations, ensuring reliable operation.

2. Versatile: This relay can handle a wide range of coil voltages, from 12V to 240V, making it a versatile option for various applications.

3. Easy to Install: The EMS 3658A relay has a standard size and mounting pattern, making it easy to install in most systems.

4. Safe: The relay is designed with safety features, such as overload protection and short-circuit protection, ensuring safe operation.

1. Higher Cost: Compared to solid-state relays, electromechanical relays like the EMS 3658A are more expensive.

2. Higher Power Consumption: Electromechanical relays consume more power than solid-state relays, as they require a current to operate the coil.

3. Mechanical Wear: The moving parts in electromechanical relays are subject to wear and tear, which can lead to eventual failure.

4. Slower Response Time: Electromechanical relays have a slower response time compared to solid-state relays, which can be a disadvantage in some applications.

In conclusion, the EMS 3658A relay is a reliable and versatile option for industrial applications that require a robust and rugged switch. Its ability to handle a wide range of coil voltages and its easy installation make it a popular choice. However, its higher cost, higher power consumption, mechanical wear, and slower response time should be considered before making a purchase.

If the application's requirements can accommodate these cons, then the EMS 3658A relay is a recommended option. However, if a faster response time, lower power consumption, or lower cost is a priority, then a solid-state relay might be a better choice.

Details:

The 1 lot includes the 2 relays please see all pictures for their details and condition. The items are pre-owned and have some signs of use/age.

specifications genpurrelays:

• brand: Ems
• mpn: 3658a
• part type: Coil
• number of pins: 8-pin

shipping genpurrelays:

• carrier: usps
• class: standard
• service: usps ground advantage
• type: fixed
• transit: 4-9 days

returns genpurrelays:

• paid by: buyer
• time: 30 days
• method: money back
• policy: returns accepted

payments genpurrelays:

• credit card: mastercard
• wallet: apple-pay
• other

seller genpurrelays:

• rating: 99.7%
• # reviews: 1356
• city: sacramento, california

offer genpurrelays:

• sold #: 15
• price: $29.75
• item condition: Used
• best offers: true
• started: july 6, 2025
• options: ship-to-home
• availability: in stock
• in stock #: 1

general genpurrelays:

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