
51M7501 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $45.00 | Condition is New, New Lennox Ducane Armstrong 51M75 OEM Limit Control Switch 51M7501, FREE SHIPPING | 99.5% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $20.00 | Condition is Used, Lennox Ducane Armstrong 51M7501 51M75 rollout control limit switch L125-30F, FREE SHIPPING | 100.0% |
![]() | $35.66 | Condition is Used, Used Lennox 51M75 95-125F Control Limit Switch 51M7501 51M75 L125-30F 36TX11, shipping cost = $38.29 | 99.1% |
![]() | $70.60 | Condition is Used, 2PCS Lennox 95-125F Control Limit Switch 51M7501 51M75 L125-30F & harness, shipping cost = $38.29 | 99.1% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $64.78 | Condition is Open box, Open box Lennox 51M75 95-125F Control Limit Switch 51M7501 51M75 L125-30F 36TX11, shipping cost = $38.29 | 99.1% |


The Lennox 51M7501 Ducane Armstrong 51M75 Limit Switch L125-30F is a crucial component in the operation of various HVAC systems. This limit switch is specifically designed for use with Lennox's Ducane Armstrong 51M7501 series of heating and cooling units.
The L125-30F is a 3-position limit switch, which means it has three distinct states: normally open (NO), normally closed (NC), and closed upon reaching the limit (CPL). This versatility allows it to serve various functions, such as controlling the position of a fan or activating a safety mechanism when a certain temperature or position is reached.
The switch is built with durability in mind, featuring a robust, corrosion-resistant construction. It is equipped with a high-quality plunger and contact assembly, ensuring reliable and consistent operation even under heavy usage. The switch is also designed to handle the high electrical currents required by HVAC systems, with a 30 ampere rating.
Installing the Lennox 51M7501 Ducane Armstrong 51M75 Limit Switch L125-30F is straightforward. It comes with clear installation instructions and mounting hardware, making it easy to integrate into your existing HVAC system. The switch is also compatible with standard wiring, further simplifying the installation process.
In summary, the Lennox 51M7501 Ducane Armstrong 51M75 Limit Switch L125-30F is a high-quality, reliable, and versatile component for your HVAC system. Its robust construction, corrosion-resistant materials, and 3-position operation make it a valuable addition to any heating and cooling unit. Its simple installation process and compatibility with standard wiring further enhance its value as a reliable and cost-effective solution.
Pros of buying Lennox 51M7501 Ducane Armstrong 51M75 Limit Switch L125-30F:1. Compatibility: This limit switch is specifically designed for Lennox and Ducane Armstrong models, ensuring a perfect fit and smooth operation.
2. Durability: Made from high-quality materials, this limit switch is built to last and withstand regular use.
3. Easy Installation: The limit switch is easy to install, saving you time and effort during the installation process.
4. Enhances Safety: By automatically stopping the unit when it reaches its limit, this limit switch helps prevent damage to the unit and ensures safe operation.
Cons of buying Lennox 51M7501 Ducane Armstrong 51M75 Limit Switch L125-30F:1. Limited Compatibility: This limit switch is only compatible with Lennox and Ducane Armstrong models, so it may not be suitable for other brands.
2. Higher Price Point: Compared to some other limit switches, this one may be priced higher due to its brand name and higher quality materials.
Conclusion:If you own a Lennox or Ducane Armstrong HVAC system, the Lennox 51M7501 Ducane Armstrong 51M75 Limit Switch L125-30F is a great investment. Its durability, ease of installation, and enhanced safety features make it a worthwhile purchase. However, if you are looking for a more budget-friendly option or if your HVAC system is not compatible with this limit switch, you may want to explore other options.
Recommendation:If you are in the market for a limit switch for your Lennox or Ducane Armstrong HVAC system, the Lennox 51M7501 Ducane Armstrong 51M75 Limit Switch L125-30F is a reliable and high-quality option. Its durability, ease of installation, and enhanced safety features make it a great purchase for those looking to ensure the longevity and safe operation of their HVAC system.
Details:
specifications centrafurn:
- brand: Lennox
- mpn: 51m7501
- part type: Switch
returns centrafurn:
- policy: no returns
offer centrafurn:
- sold #: 25
- prices: $35.66–$70.60
- item condition:
- New
- Used
- Open box
- availability: in stock
- started: october 25, 2024
- options: ship-to-home
- in stock #: 5
seller centrafurn:
- # reviews: 2532
- city: glen allen, virginia
- rating: 98.9%
payments centrafurn:
- other
- wallet: apple-pay
- credit card: visa
shipping centrafurn:
- transit: 4-8 days
- class: standard
- service: usps ground advantage
- carrier: usps
- type: calculated
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
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