EP-FREL4-40 MGI SPEEDWARE Fused Relay Spst Harness Socket Led

Review MGI SPEEDWARE Ep-frel4/40 Fused Relay 40a 12vdc 4-pin Spst Harness Socket And 30a Led Fuse 2-pack

Introducing the MGI SpeedWare EP-FREL4/40 Fused Relay, a versatile and reliable component designed for automotive applications. This 12VDC, SPST (Single Pole, Single Throw) fused relay harness features a 40A current rating and comes with a 30A LED fuse, ensuring optimal power distribution and protection for your electrical systems.

The MGI SpeedWare EP-FREL4/40 is a fused relay, which means it includes a built-in fuse that provides an additional layer of safety by preventing excessive current flow, thus reducing the risk of electrical damage or fire. The 30A LED fuse is easy to identify due to its integrated LED indicator, which illuminates when the relay is in use, providing a clear visual cue for system status.

The harness socket of the MGI SpeedWare EP-FREL4/40 is designed for a secure and easy connection to your vehicle's wiring. It is a 12VDC component, making it suitable for a wide range of automotive electrical applications. The fused relay's SPST (Single Pole, Single Throw) design ensures that it can only conduct power between one set of contacts when closed, making it an ideal solution for controlling various electrical loads in your vehicle.

The MGI SpeedWare EP-FREL4/40 Fused Relay is engineered with high-quality materials and components, ensuring durability and reliability even under heavy usage. The fuse holder is designed to securely hold the fuse in place, and the harness wiring is made from flexible, high-temperature insulated material, ensuring optimal performance in various temperature conditions.

In summary, the MGI SpeedWare EP-FREL4/40 Fused Relay is an essential component for automotive electrical systems, providing safe and reliable power distribution, and offering a clear visual cue for system status. Its 40A current rating, 12VDC operation, and SPST design make it a versatile and adaptable solution for various automotive applications.

The MGI Speedware EP-FREL4/40 is a fused relay harness socket with a 30A LED fuse, designed for 12VDC applications. This product can be a useful addition to various electrical systems, particularly in RVs, boats, or other mobile applications where reliable power distribution is essential. Here are some potential advantages and disadvantages of using the MGI Speedware EP-FREL4/40:

1. Durable construction: The relay harness socket is built with a robust design, featuring a corrosion-resistant ABS housing and gold-plated terminals for improved conductivity and longevity.

2. Convenient installation: The EP-FREL4/40 comes with a pre-installed 30A LED fuse, making it easier for users to install the harness directly into their electrical system.

3. Versatile application: This relay harness socket can be used to power various electrical components, such as pumps, compressors, or other heavy-duty appliances, making it a versatile option for a wide range of applications.

4. Enhanced safety: The integrated LED fuse provides visual indication of the fuse status, ensuring users can easily monitor the electrical system's health and prevent potential overcurrent issues.

5. Space-saving design: The compact size of the EP-FREL4/40 makes it an excellent choice for applications where space is limited.

1. Limited current rating: Although the EP-FREL4/40 can handle up to 40A, the built-in 30A fuse may not be suitable for all applications that require higher current ratings.

2. Potential compatibility issues: Some users have reported issues with the EP-FREL4/40 working with specific electrical systems or components, so it's essential to verify compatibility before installation.

3. Additional wiring required: Depending on the application, users might need to purchase additional wiring or connectors to properly install the EP-FREL4/40.

The MGI Speedware EP-FREL4/40 fused relay harness socket with a 30A LED fuse is a reliable and versatile solution for powering various electrical components in mobile applications. Its durable construction, convenient installation, and enhanced safety features make it an attractive option for RVs, boats, and other applications where reliable power distribution is essential. However, potential users should verify compatibility and consider their specific requirements, as the EP-FREL4/40 might not be suitable for all applications that require higher current ratings.

If you're seeking a dependable and easy-to-install fused relay harness socket for powering electrical components in your mobile application, the MGI Speedware EP-FREL4/40 is an excellent choice. However, it's essential to ensure compatibility with your specific electrical system and consider your current requirements before making a purchase. By carefully evaluating your needs and verifying compatibility, you can ensure a successful installation and enjoy the benefits of this robust and versatile product.

Details:

Specifications: uniquely manufactured 40a spst relay. Versatile, widely used in 12v cars, boats, trucks, golf carts, and more. Mgi Speedware unique relay with 40a contact and built-in 30a led fuse saves you time effort when wiring high-current automotive or marine devices such as pumps, fans, spotlights, hid headlights, sound systems more. Easily swap to larger size if needed.

Easy installation, easily install relays using the socket mounting braking. Terminals 85 86 connect to your switch and ground, while terminals 30 87 power supply normally-open n.o. High-current load. Interlocking sockets let's you add or subtract any number of relays with ease, can be rearranged, separated, and combined.

specifications genpurrelays:

• brand: Mgi Speedware
• mpn: Ep-frel4/40
• part type: Led Fuse Harness Socket
• included components: Relay, Fuse, And Socket
• measurement system: Inch And Metric
• maximum switching current: 40.0
• contact material: Brass
• contact type: Normally Open
• connector type: Plug-in
• input voltage: 12.0
• customer package type: Standard Packaging
• operation mode: Electric, Motor
• mounting type: Socket Mount
• upper temperature rating: 125.0
• package dimensions lxwxh: 6.57x4.76x1.57 Inches
• weight: 0.26 Pounds

offer genpurrelays:

• availability: in stock
• options: ship-to-home
• in stock #: 5
• started: june 10, 2026
• sold #: 11
• prices: $25.22–$25.54
• item condition: New

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• other
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shipping genpurrelays:

• type: fixed
• transit: 3-8 days
• service: expedited
• class: expedited

returns genpurrelays:

• policy: no returns

general genpurrelays:

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

seller genpurrelays:

• rating: 99.8%
• city: lathrop, california
• # reviews: 2400