Hella ISO Relay Kit 12V 50A Mini SPST with Mounting Bracket

Description

Product Overview

The Hella ISO mini relay kit is engineered for demanding automotive and agricultural applications where reliability and performance are paramount. Operating at a nominal 12 V, this relay delivers a maximum switching current of 50 A through robust copper contacts, ensuring low resistance and minimal heat buildup even under continuous load. The single‑pole, single‑throw (SPST) configuration provides a straightforward, fail‑safe switching action, while the automatic operation mode eliminates the need for manual intervention. Hella, a trusted name in vehicle components, equips this relay with a machined exterior housing that resists corrosion and mechanical wear, extending service life in harsh environments. The kit includes a pole‑type mounting bracket, allowing secure attachment to chassis or pole mounts, and a set of terminals for easy wiring. With a compact footprint of 2.36 × 1.18 × 1.10 inches and a lightweight design of just 0.634 oz, the relay fits seamlessly into tight spaces without compromising on durability.

Usage

This relay is ideally suited for a wide range of vehicle systems, from starter motor control circuits to auxiliary lighting, fuel pump regulation, and heavy‑duty equipment such as tractors, combine harvesters, and construction machinery. Its 12 V coil voltage aligns with standard automotive electrical systems, making it a drop‑in replacement for OEM parts across brands like John Deere, CASE IH, Massey Ferguson, and New Holland. The high current rating supports power‑intensive accessories, while the automatic mode ensures the relay engages promptly when voltage is present, providing reliable operation in both start‑up and steady‑state conditions. The pole mounting bracket simplifies installation on engine bays, control panels, or pole‑mounted relay boxes, reducing installation time and minimizing the risk of loose connections. Whether retrofitting an older vehicle or outfitting a new piece of farm equipment, the Hella ISO mini relay offers a versatile solution that meets ISO standards for safety and performance.

Why Choose Us

Choosing the Hella ISO mini relay kit means selecting a component backed by decades of engineering expertise and rigorous quality control. Each relay undergoes ISO certification testing to verify compliance with industry standards for electrical safety, temperature tolerance, and mechanical endurance. The copper contact material is selected for its superior conductivity and resistance to oxidation, guaranteeing consistent performance over the product’s lifespan. Hella’s commitment to after‑sales support includes a comprehensive warranty, technical assistance, and access to replacement parts, ensuring that any issues are resolved quickly and efficiently. Moreover, the relay’s design incorporates a compact yet robust form factor that reduces weight without sacrificing strength, a critical factor for mobile applications where every gram counts. By integrating this relay into your system, you benefit from reduced downtime, lower maintenance costs, and the confidence that comes from using a component trusted by leading manufacturers worldwide.

Key Features

• High current capacity of 50 A provides reliable power for demanding loads.
• Copper SPST contacts deliver low resistance and long service life.
• Automatic 12 V operation simplifies wiring and reduces manual control.
• Compact, machined housing resists corrosion and fits tight installation spaces.
• Includes pole mounting bracket and dedicated support for quick, secure installation.

FAQ

What vehicles are compatible with this relay?

The relay conforms to ISO specifications and matches the electrical requirements of most light‑ and heavy‑duty vehicles. It is a direct replacement for OEM relays in brands such as John Deere, CASE IH, Massey Ferguson, New Holland, and many others, making it suitable for tractors, harvesters, construction equipment, and standard passenger cars.

Can the relay be used in a 24 V system?

While the relay is optimized for a 12 V coil voltage, it can operate in a 24 V system if a suitable voltage‑dropping resistor or a dedicated driver circuit is employed to ensure the coil receives the correct voltage. However, for best performance and warranty compliance, we recommend using it within its specified 12 V range.

How does the automatic mode function?

In automatic mode, the relay coil is energized whenever the supply voltage reaches the minimum switching voltage of 12 V DC. This causes the internal contacts to close without any external control signal, providing a fail‑safe mechanism that activates the connected load as soon as power is available.

What is the expected lifespan of the copper contacts?

Under normal operating conditions, the copper contacts are rated for millions of switching cycles. Their resistance to wear and oxidation ensures consistent performance, and the relay’s ISO certification guarantees that it meets stringent durability standards.

Is technical support available for installation assistance?

Yes, Hella offers dedicated technical support to help with installation, wiring diagrams, and troubleshooting. Customers can contact our support team via phone or email, and we also provide online resources, including detailed PDFs and video guides, to ensure a smooth integration process.