4945SN-WH HONEYWELL Magnetic Contacts Plex

Review HONEYWELL Magnetic Contacts Plex

Introducing the Honeywell 4945SN-WH Magnetic Contact Switch, a versatile and reliable solution for your automation needs. This contact switch employs the use of a powerful neodymium magnet, which securely holds the contact closed when in proximity. This makes it an ideal choice for applications where the contact needs to be closed when a magnetic object is present, such as in HVAC systems, refrigeration units, or industrial machinery.

The Honeywell 4945SN-WH Magnetic Contact Switch is designed with a robust, weather-resistant housing that can withstand harsh environments. The white polycarbonate housing not only adds to its aesthetic appeal but also provides excellent protection against dust, moisture, and other harsh elements. With a voltage rating of 24V AC, this contact switch can handle a wide range of applications without compromising performance.

The Honeywell 4945SN-WH Magnetic Contact Switch features a normally open (NO) configuration, meaning it is in an open state when the magnet is not present. Once the magnet comes into contact with the switch, the contacts close and complete the circuit. This ensures that the system responds accordingly to the presence or absence of the magnetic object.

This contact switch is designed to be easy to install, with terminals that can accommodate various wire sizes. The mounting surface is also UL-listed for flush or surface mounting, making it a flexible option for various installation scenarios. Additionally, the Honeywell 4945SN-WH Magnetic Contact Switch comes with a 10-year warranty, ensuring peace of mind for your automation project.

In summary, the Honeywell 4945SN-WH Magnetic Contact Switch is a high-performance, reliable, and versatile solution for your automation needs. With its powerful neodymium magnet, robust weather-resistant housing, easy installation, and 10-year warranty, this contact switch is an excellent choice for applications in a wide range of industries.

The Honeywell 4945SN-WH Magnetic Contacts Plex are magnetic reed switches designed for use in various automation, security, and HVAC applications. These contacts offer several benefits, but they also come with some potential drawbacks. Let's discuss the pros and cons of purchasing these contacts:

1. Versatility: These contacts can be used in various applications, such as door and window sensors, level switches, and temperature sensors.

2. Reliability: Magnetic contacts are known for their high reliability and long service life due to their simple design and lack of moving parts.

3. Easy to install: These contacts are easy to install and can be mounted on various surfaces, including metal, plastic, and glass.

4. Cost-effective: Magnetic contacts are generally less expensive than other types of sensors, making them a cost-effective solution for many applications.

1. Magnetic interference: Magnetic contacts can be affected by magnetic fields, which can cause false triggering or failure to trigger. This can be mitigated by using shielded cables or positioning the contacts away from magnetic sources.

2. Limited temperature range: These contacts are not suitable for extreme temperature environments, as their performance can be affected by temperature variations.

3. Limited sensitivity: Magnetic contacts may not be suitable for applications where high sensitivity is required, as they may not detect small changes in position or magnetic fields.

In conclusion, the Honeywell 4945SN-WH Magnetic Contacts Plex offer several advantages, including versatility, reliability, ease of installation, and cost-effectiveness. However, they also come with some limitations, such as susceptibility to magnetic interference, limited temperature range, and limited sensitivity.

If you are looking for a reliable, cost-effective solution for applications where magnetic switches are suitable, these contacts are an excellent choice. However, if you require high sensitivity, extreme temperature resistance, or are in an environment with strong magnetic fields, you may want to consider other types of sensors.

If you are looking for magnetic contacts for automation, security, or HVAC applications, the Honeywell 4945SN-WH Magnetic Contacts Plex are an excellent choice due to their versatility, reliability, ease of installation, and cost-effectiveness. However, be aware of their limitations and consider other types of sensors if you require high sensitivity, extreme temperature resistance, or are in an environment with strong magnetic fields.

Details:

The product is a set of Honeywell magnetic contacts with the model number 4945SN-WH. With the trusted brand of Honeywell and specific model number, users can be confident in reliability performance these contacts for their surveillance alarm equipment needs.

specifications alarmpartsacc:

• brand: Honeywell
• mpn: 4945sn-wh

offer alarmpartsacc:

• options: ship-to-home
• in stock #: 2
• sold #: 13
• availability: in stock
• prices: $24.99–$100.00
• item condition: New
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• started: december 11, 2025

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• category: Business & Industrial > Surveillance Equipment > Systems > Alarm Parts Accessories

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