CU277A

The Hubbell CU277A H-MOSS voltage ballast is a reliable and efficient solution for powering fluorescent lamps with a voltage of 277VAC and a maximum current of 20A. This ballast is designed with Hubbell's H-MOSS technology, which provides excellent energy savings and long lamp life.

The CU277A ballast is a compact and versatile unit, measuring approximately 10.2 inches long, 3.2 inches wide, and 3.2 inches high. It is constructed with a durable and corrosion-resistant cast aluminum housing, making it suitable for use in various indoor and outdoor applications.

The ballast features a built-in voltage selector switch, which allows for easy selection of the desired operating voltage. It also includes a lamp test button, which enables users to quickly check the status of the lamps without having to turn off the power.

The Hubbell CU277A H-MOSS voltage ballast is designed to operate with standard T12, T8, and T5 fluorescent lamps, making it a versatile option for lighting a wide range of spaces. It is also compatible with electronic ballast bypass switches and includes a bypass terminal for easy installation.

This ballast is designed to provide a long and maintenance-free operation, thanks to its robust construction and advanced electronic components. It also includes a built-in thermal overload protection, which helps to prevent overheating and potential damage to the ballast or lamps.

Overall, the Hubbell CU277A H-MOSS voltage ballast is a high-performance and cost-effective solution for powering fluorescent lamps in various applications. Its durable construction, advanced features, and energy savings make it a top choice for facilities managers, electricians, and other professionals in the lighting industry.

The Hubbell CU277A H-MOSS voltage 277VAC 20A ballast fluorescent relay is a component used in lighting systems to control the flow of electrical current. Here are some pros and cons that may help you decide if this relay is the best choice for your needs:

1. Durable Construction: Hubbell is known for its high-quality and reliable products. This relay is built to last, with a robust design that can handle heavy usage.

2. Easy Installation: The CU277A H-MOSS relay is easy to install, with clear markings and a straightforward design. It can be mounted in various orientations, making it flexible for different installation scenarios.

3. Energy Efficient: This relay is designed to be energy efficient, which can help reduce your overall electricity consumption and save you money on your energy bills.

4. Versatile: The CU277A H-MOSS relay is suitable for a wide range of applications, including industrial, commercial, and residential lighting systems.

5. Safe: This relay is designed with safety in mind, with features like overload protection and short-circuit protection to prevent electrical hazards.

1. Price: Compared to some other relays on the market, the Hubbell CU277A H-MOSS may be more expensive. However, the higher price tag may be justified by its durability and reliability.

2. Size: This relay is larger than some other options on the market, which may make it less suitable for tight spaces or applications where size is a concern.

3. Limited Compatibility: This relay is specifically designed for use with 277VAC 20A ballast fluorescent lighting systems. It may not be compatible with other types of lighting systems or voltage levels.

The Hubbell CU277A H-MOSS voltage 277VAC 20A ballast fluorescent relay is a high-quality and reliable component that is suitable for use in a wide range of lighting systems. Its durable construction, easy installation, energy efficiency, versatility, and safety features make it a great choice for industrial, commercial, and residential applications. However, its higher price tag and larger size may be drawbacks for some users. Ultimately, the decision to purchase this relay will depend on your specific needs and budget. If you require a reliable and durable component for your lighting system and are willing to pay a premium, the Hubbell CU277A H-MOSS is an excellent choice.

Details:

Cu120a, CU277A, voltage 24vdc, color black, includes internal relay, height 1-3/8 in. Our part number:hub cu-277a, catalog number:cu277a, condition: new, condition notes:new in box, combined shipping:yes, spec sheet: accessories included: not retail price:$53, qty:1. width 3-11/16 in. Auxiliary relay, for use with mfr.

Items purchased without making special shipping arrangements will not be honored. Hubbell CU277A h-moss low voltage 277vac 20a ballast fluorescent aux relay new page combined shipping, some orders qualify for combined shipping discounts.

specifications faclighting:

• brand: Hubbell
• mpn: Cu277a
• part type: Ballast
• color: Black
• upc: 642337956430

returns faclighting:

• policy: no returns

payments faclighting:

• wallet: apple-pay
• other
• credit card: diners-club

shipping faclighting:

• type: calculated
• transit: 2-6 days
• class: standard, expedited, one-day
• carrier: ups
• service: ups ground, ups 3 day select, ups 2nd day air, ups next day air

offer faclighting:

• prices: $14.50–$75.48
• item condition:
  • New
  • New – Open box
  • Used
• best offers: true
• in stock #: 5
• options: ship-to-home
• sold #: 16
• started: june 10, 2025
• availability: in stock

general faclighting:

• category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting

seller faclighting:

• # reviews: 30206
• city: las vegas, nevada
• rating: 99.4%

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• CX1624MTHRBD: LIGHTING CONTROL BOARD, Hubbell
• CH25E4MF4H-LTRI10LRIOR: BALLAST HOUSING, Hubbell
• US30CUBE: DETECTOR SENSOR, Hubbell
• CPMBRD04: PANEL, Hubbell
• UFO-7W-1: BALLAST, Hubbell
• CX082S00SPM: LIGHTING CONTROL PANEL, Hubbell
• BLA-175P8-WH-EX: BALLAST, Hubbell