fits year: 1973–1980.

( Brand: Standard Motor Products ), ( Manufacturer Part Number: HR-141 ), ( Part Type: Motor ), ( Ipn: 1116882 )
The Standard Motors HR-141 is a buzzer relay, manufactured by Standard Motor Products Inc. between the years 1973 and 1980. This versatile and reliable component was designed to serve as both a switch and a buzzer in one compact unit. It is a 12-volt AC device, with a buzzer operating on these volts and featuring an adjustable pitch. The Switching capacity of this HR-141 model is 5 Amperes, making it suitable for various applications that require low current-carrying capability.
The size dimensions are as follows: A length of 3 inches, a width of 2 inches, and a height of 1 inch, with terminals mounted on the side. The HR-141 features a clear, easy-to-read dial for adjusting the buzzer pitch, which ranges from a low 600 Hz to a high 1500 Hz. The adjustment is made by means of an external screw, allowing for precise control of the buzzer sound.
This Standard Motor product is designed with a latching action, meaning it remains in the last switch position it was set to until manually overridden. In terms of mounting, it comes with a rubber mounting base which measures 4 inches in diameter for easy installation and vibration dampening. The relay contacts are rated for 20,000 operations minimum and offer reliable switching functionality.
The HR-141's contacts and coil are rated for 13,000 volts AC and 250 volts AC respectively, allowing it to handle quite a range of electrical input. The buzzer's current draw is relatively low, averaging at 100 milliamperes. The device's coil resistance is 250 ohms.
The Standard Motors HR-141 been proven to be a valuable asset in automotive, industrial, and commercial settings where a buzzing alert or tone is needed. The combination of a switch and buzzer within one small footprint makes it a space-saving solution for those looking to minimize the number of components in their system. Whether for a static application or one requiring frequent switching, this buzzer relay proves to be a time-tested choice.
The General Motors HR-141 buzzer relay, which was produced for various GM applications between 1973 and 1980, can be a valuable addition to your vehicle's electrical system for generating warning alerts. However, like any automotive component, it comes with its advantages and disadvantages.
Advantages of HR-141 Buzzer Relay:1. Versatile Application: The HR-141 buzzer relay is compatible with numerous GM vehicles, making it a versatile option for those working on older GM models.
2. Durable Construction: These relays are generally known for their robust hardware, which should help ensure long-term reliability.
3. Quiet Operation: The buzzer in this relay produces a clear, quiet warning signal, which is often sufficient for alerting the driver to various vehicle issues.
Disadvantages of HR-141 Buzzer Relay:1. Limited Availability: While widely used in GM vehicles during the 1970s, the HR-141 buzzer relay is no longer in production, making it a challenge to find new replacements. Therefore, you may need to look for used or rebuilt options.
2. Wiring Complexity: Older vehicles can pose challenges when it comes to wiring and installation. You may need to consult the vehicle's service manual or seek advice from experts to correctly install the buzzer relay.
3. Redundancy: Modern vehicle systems may offer more advanced warning systems with visual and audible alerts, making the HR-141 buzzer relay's simplicity a potential disadvantage for some.
In conclusion, the HR-141 buzzer relay, although an efficient solution for various warning functions in older GM vehicles, presents a few challenges. Its limited availability and potential need for specialized knowledge when installing could require additional effort and resources. On the positive side, the buzzer relay offers a quiet operation and versatile application, making it a valuable component for those restoring or maintaining classic GM vehicles.
If you decide to purchase a HR-141 buzzer relay, consider sourcing it from reputable suppliers to ensure the highest possible quality and ensure that you have the correct part number for your specific vehicle application.
HR-141 BUZZER RELAY 12 VOLT UNIVERSAL TYPE BUS AND TRUCK.