H41388131 HELLA Weatherproof Mini Relay Amp Spdt

Review HELLA Weatherproof 20/40spdt Mini Relay

The Hella H41388131 Weatherproof 20/40SPDT Mini Relay is a versatile and reliable switching solution for various automotive and industrial applications. This 20/40 Amp Single Pole Double Throw (SPDT) relay boasts a compact size, making it an excellent choice for space-constrained installations.

The relay's weatherproof design ensures optimal performance in harsh environments. It features a robust housing that is resistant to water, dust, and other harsh elements, allowing for operation in outdoor or exposed areas. Moreover, the relay's silver-plated contacts ensure reliable switching and long contact life, even under heavy load conditions.

The Hella H41388131 Weatherproof 20/40SPDT Mini Relay has a coil voltage range of 6-32V DC, making it suitable for a wide range of battery voltages. Its switching capacity of 20 Amps at 25 C and 10 Amps at 85 C ensures that it can handle a variety of current loads. The relay also features a built-in diode, which protects the coil from inductive kickback and ensures proper polarity.

The relay's contacts are rated for a maximum operating temperature of 105 C and a maximum contact opening and closing rate of 250 per minute. These specifications make the relay suitable for high-performance applications where contact switching is required at a high rate.

The Hella H41388131 Weatherproof 20/40SPDT Mini Relay comes with a mounting plate, which simplifies the installation process. The relay is also easy to wire, with clear markings on the relay terminal block indicating the common, normally open, and normally closed contacts.

In summary, the Hella H41388131 Weatherproof 20/40SPDT Mini Relay is a high-performance and reliable switching solution for automotive and industrial applications. Its compact size, weatherproof design, and robust construction make it an excellent choice for space-constrained installations and harsh environments. Its high switching capacity, built-in diode, and easy wiring make it a versatile and convenient solution for a wide range of applications.

Pros and Cons of Buying Hella H41.388131 Weatherproof 20/40SPDT Mini Relay

The Hella H41.388131 Weatherproof 20/40SPDT Mini Relay is a popular choice for automotive and industrial applications due to its compact size, high current capacity, and weatherproof design. In this analysis, we will discuss the key advantages and disadvantages of purchasing this relay.

1. High Current Capacity: This relay can handle up to 20 amps at 12V DC for the coil and up to 40 amps for the contacts. This makes it suitable for a wide range of applications that require heavy current flow.

2. Weatherproof Design: The relay's housing is designed to protect it from harsh environmental conditions, such as water, dust, and extreme temperatures. This makes it an excellent choice for outdoor installations or applications where the environment is not controlled.

3. Compact Size: The mini relay's dimensions are just 53mm x 30.5mm x 25mm, making it easy to install in tight spaces.

4. Good Switching Performance: The relay can switch contacts at a rate of up to 25 times per second, which is sufficient for most automotive applications.

5. Robust Construction: The relay's contacts are made of silver-plated brass, which ensures good conductivity and long life. The coil is also designed to be robust, with a wire reinforcement to prevent winding damage.

1. Price: The Hella H41.388131 Weatherproof 20/40SPDT Mini Relay is more expensive than some other relays on the market with similar specifications. However, its high quality and robust construction justify the higher price for many users.

2. Limited Coil Voltage: The relay's coil can only be driven with a maximum voltage of 35V DC. This may limit its compatibility with certain applications or power sources.

3. Limited Number of Contacts: This relay is a single-pole double-throw (SPDT) type, meaning it can only switch one contact at a time. For applications requiring multiple contacts to be switched simultaneously, a different type of relay may be required.

The Hella H41.388131 Weatherproof 20/40SPDT Mini Relay offers several advantages, including high current capacity, weatherproof design, compact size, good switching performance, and robust construction. However, it also has some disadvantages, such as a higher price point and limited coil voltage. Ultimately, if you require a reliable and robust relay for heavy current applications in harsh environments, this relay is an excellent choice, despite its higher cost. If you have a smaller budget or require multiple contacts to be switched simultaneously, you may want to consider other options.

Details:

High quality Hella relays. Over 100 years of excellence in automotive lighting. Conveniently packaged. Hella quality and performance.

Hella H41388131 weatherproof 20/40 spdt mini relay:: relay Hella 007794321.

specifications genpurrelays:

• brand: Hella
• mpn: H41388131
• upc: 760687124535

seller genpurrelays:

• city: clawson, michigan
• rating: 98.9%
• # reviews: 65651

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• other
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general genpurrelays:

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

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

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offer genpurrelays:

• prices: $21.88–$35.20
• item condition: New
• in stock #: 4
• started: september 18, 2025
• options: ship-to-home
• sold #: 16
• availability: in stock