Carrier HVAC Automatic Relay 24V Normally Open

Description

Product Overview

The Carrier HVAC Automatic Relay is engineered for precision control of auxiliary heating and air‑conditioning functions in automotive applications. Featuring a normally open contact configuration, the relay operates at a maximum switching voltage of 24 V and a coil resistance of 50 Ω, delivering dependable actuation under demanding conditions. Constructed from high‑grade materials, the unit measures 9 × 6 × 5 inches and weighs just 2.89 ounces, allowing seamless integration into existing HVAC assemblies. As a genuine OEM component, it matches the original specifications of Carrier‑manufactured systems, ensuring perfect fit and function.

Usage

Designed for both passenger cars and light‑duty trucks, this relay excels in environments where reliable temperature regulation is critical. Install it in auxiliary heater circuits, climate‑control modules, or any AC control system that requires a 24 V trigger. Its compact size makes it suitable for tight engine bays, while the low weight reduces overall system load. Whether you are a professional mechanic performing a replacement or an enthusiast upgrading a vehicle’s climate system, the Carrier relay provides straightforward installation and immediate performance gains.

Why Choose Us

Carrier’s reputation for HVAC excellence extends to this relay, offering unmatched quality assurance and durability. As an OEM part, it undergoes rigorous testing to meet factory standards, guaranteeing longevity and consistent operation. Our distribution network ensures authentic parts, backed by a clear return policy and technical support. Choosing this relay means investing in a component that upholds the integrity of your vehicle’s climate system, reducing the risk of premature failures and costly downtime.

Key Features

• Normally open contact design for reliable activation
• 24 V maximum switching voltage compatible with most automotive HVAC systems
• 50 Ω coil resistance ensures stable performance under load
• Compact 9 × 6 × 5 in dimensions fit tight engine compartments
• Genuine OEM part matching Carrier factory specifications

FAQ

What does “normally open” mean for this relay?

A normally open (NO) relay contacts remain open until the coil is energized, at which point the contacts close to allow current flow. This configuration is ideal for control circuits that require activation only when a specific signal is present.

Can this relay be used in non‑Carrier HVAC systems?

Yes. The relay’s 24 V rating and standard contact layout make it compatible with many aftermarket and OEM HVAC modules, provided the electrical specifications match.

Is any special wiring required for installation?

The relay connects to a 24 V power source and the control circuit using the provided terminals. Follow the wiring diagram in your vehicle’s service manual to ensure correct polarity and secure connections.

What is the warranty on this relay?

Carrier offers a one‑year limited warranty covering defects in materials and workmanship for this OEM relay.

How does the coil resistance affect performance?

A 50 Ω coil resistance provides a balanced draw on the control circuit, reducing heat buildup while delivering sufficient magnetic force to operate the contacts reliably.