
LRM277 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $85.50 | Condition is New – Open box, COOPER CONTROLS LRM277 277VAC 24VDC LIGHTING RELAY MODULE, FREE SHIPPING | 99.7% |

The Cooper LRM277 is a versatile and reliable 277VAC to 24VDC lighting relay module, specifically designed for commercial and industrial lighting applications. This high-performing relay offers an easy and cost-effective solution for converting high-voltage AC lighting systems to low-voltage DC control circuits.
The LRM277 is engineered with premium components and is rated for 277VAC input voltage and 24VDC output voltage. This heavy-duty relay can handle high current loads up to 2.5 Amperes. Its compact size, measuring only 2.25 inches long by 2.3 inches wide by 1.3 inches tall, makes it an ideal fit for a variety of lighting control installations.
The Cooper LRM277 is designed with an additional safety feature in the form of an internal over-current protection function, protecting the module from damage due to excessive current flow. It also features a contact rating of 10,000 cycles at 2 amps, ensuring long-lasting performance.
The relay's contacts are made of gold-plated silver, providing excellent conductivity and contributing to the device's overall durability. The LRM277 offers quiet and snappy contact action, perfect for applications where a distinct contact closure is required.
Installing the LRM277 could not be simpler. It features an easy-to-use screw terminal design allowing quick and secure connections for both input and output wiring. The module is also compatible with a range of control systems, providing ultimate flexibility for various lighting applications.
The Cooper LRM277 offers outstanding reliability in demanding environments. It is both RoHS and UL508 certified, ensuring adherence to stringent industry standards. Its robust design also makes it resistant to extreme temperatures (-10 C to 50 C), humidity, and vibrations.
In summary, the Cooper LRM277 277VAC 24VDC lighting relay module is a high-quality and efficient solution for converting high-voltage AC lighting systems to low-voltage DC control circuits. Its compact size, reliable performance, versatility, ease of installation, and safety features make it a top choice for commercial and industrial lighting applications.
The Cooper LRM277 is a 277VAC input, 24VDC output lighting relay module designed for use in commercial lighting control applications. Here are some potential pros and cons of buying this relay module:
Pros:1. Industrial-grade design: The LRM277 is designed for heavy-duty use in commercial lighting applications. It has a robust design with a die-cast aluminum housing, which can withstand harsh environments and ensure long-term reliability.
2. Field-installable: The relay module is field-installable, which means it can be easily integrated into existing lighting systems without requiring extensive wiring or modification.
3. Versatile: The LRM277 can handle a wide range of lighting loads and can be used in various lighting control applications such as occupancy sensing, photocell control, and manual switching.
4. Easy to use: The relay module has a simple wiring scheme, making it easy to install and operate.
5. Energy savings: By using a lighting relay to control lights, you can save energy by ensuring that lights are only on when needed, which can lead to cost savings over time.
Cons:1. Higher cost: Compared to lower-end relays, the Cooper LRM277 can be more expensive, which may be a consideration for some buyers.
2. Limited capacity: Depending on your specific lighting control needs, the LRM277 may not have the capacity to handle large loads or multiple circuits.
3. No remote mounting: The relay module must be installed in a fixed location, which may not be ideal for some installation scenarios.
4. Limited compatibility with some control systems: The LRM277 may not be compatible with all lighting control systems, so it's important to check compatibility before making a purchase.
Conclusion:The Cooper LRM277 is a high-quality, industrial-grade lighting relay module designed for use in commercial lighting control applications. Its robust design, versatility, and easy-to-use features make it a reliable choice for controlling lighting loads. However, its higher cost and limited capacity may be a disadvantage for some buyers. Ultimately, the decision to purchase the LRM277 will depend on your specific lighting control needs and budget.
Recommendation:If you're looking for a reliable and robust lighting relay module for commercial applications, the Cooper LRM277 is a solid choice. Its industrial-grade design, versatility, and simple wiring scheme make it a good investment for controlling lighting loads in demanding environments. However, if cost is a concern or if you have larger loads or more complex control needs, you may want to consider alternative relay options.
Details:
Cooper controls LRM277 277vac 24vdc lighting relay module new page items purchased without making special shipping arrangements will not be honored. Manufacturer:Cooper, our part number:clrm277-no, catalog number:lrm277, condition: new other see details, condition notes:new - repackaged, combined shipping:yes, spec sheet: accessories included: not retail price:$180.42, qty:1. Combined shipping, some orders qualify for combined shipping discounts.
specifications faclighting:
- brand: Cooper
- mpn: Lrm277
- part type: Lighting Module Control
- color: Multi-colored
- product height: 3.0
- product length: 4.9
- upc: 616913184333
seller faclighting:
- city: las vegas, nevada
- # reviews: 29948
- rating: 99.2%
returns faclighting:
- policy: no returns
shipping faclighting:
- type: calculated
- carrier: ups
- transit: 4-9 days
- service: ups ground, ups 3 day select, ups 2nd day air, ups next day air
- class: standard, expedited, one-day
general faclighting:
- category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting
payments faclighting:
- other
- credit card: visa
- wallet: apple-pay
offer faclighting:
- sold #: 21
- started: january 15, 2025
- options: ship-to-home
- availability: in stock
- price: $85.50
- item condition: New – Open box
- in stock #: 1
- best offers: true
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