Keystone KTEB-454HO-UV-PS-DP 4-lamp F54T5HO Ballast

Product Description

The KEYSTONE KTEB-454HO-UV-PS-DP is a programmed-start electronic fluorescent ballast rated for four F54T5HO lamps at 54 watts each. It operates on a universal voltage range of 120 to 277 VAC at 50/60 Hz, making it suitable for commercial installations where panel voltage can vary. The high power factor (HPF) circuit type delivers a power factor of 0.9 and a ballast factor of 1.0, supporting full light output from connected lamps. Input power is 240 watts at 120 VAC and 235 watts at 277 VAC. The steel case is rated to a maximum case temperature of 90 degrees C, and the unit carries UL, CUL, and FCC approvals along with RoHS compliance. Licensed electricians and lighting maintenance technicians are the primary installers.

This ballast is designed for use in commercial and industrial fluorescent lighting fixtures that house four F54T5HO high-output T5 lamps. Typical applications include suspended troffers, high-bay strip fixtures, and undershelf lighting in retail, warehouse, and office environments. The 120-to-277 VAC input range allows the same ballast to serve across standard single-phase branch circuits without needing a separate voltage-specific SKU. Series wiring configuration and programmed-start technology extend lamp life by pre-heating cathodes before ignition, which is especially valuable in systems subject to frequent switching cycles.

Key Features

• Programmed-start circuit pre-heats lamp cathodes before strike, reducing lamp wear in high-cycle applications
• Universal 120 to 277 VAC input covers most commercial branch circuit voltages without a separate ballast SKU
• High power factor (HPF) circuit type with 0.9 power factor minimizes reactive load on the electrical system
• Ballast factor of 1.0 delivers 100 percent rated lumen output from connected F54T5HO lamps
• Maximum THD of 10 percent meets ANSI C82.11 and C62.41 harmonic distortion standards
• RoHS compliant; approved to UL, CUL, and FCC standards for use in US and Canadian installations
• Steel case rated to 90 degrees C maximum case temperature for use in warm ambient environments

Compatibility

Designed as an OEM-style replacement or new-installation ballast for commercial fluorescent fixtures requiring a 4-lamp programmed-start driver compatible with F54T5HO high-output T5 lamps.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit at the breaker before servicing the fixture or wiring the ballast. Verify input voltage at the fixture matches the ballast nameplate range before energizing. Do not exceed the rated number or wattage of lamps specified for this ballast.

Technical Specifications

• Lamp Type: F54T5HO
• Number of Lamps: 4
• Lamp Wattage: 54 W per lamp
• Input Voltage: 120 to 277 VAC
• Input Current: 1.93 A at 120 VAC, 0.83 A at 277 VAC
• Input Power: 240 W at 120 VAC, 235 W at 277 VAC
• Frequency Rating: 50/60 Hz
• Power Factor: 0.9
• Circuit Type: HPF
• Starting Type: Programmed Start
• Ballast Factor: 1.0
• Maximum THD: 10 percent
• Crest Factor: 1.7
• Ballast Efficacy Factor: 0.42/0.43 at 120 to 277 VAC
• Wiring: Series
• Minimum Starting Temperature: -29 degrees C
• Maximum Case Temperature: 90 degrees C
• Case Material: Steel
• Dimensions: 16.7 inches L x 1.7 inches W x 1.18 inches H
• Mounting Size: 16.09 inches
• Applicable Standards: ANSI C82.11 and C62.41
• Approvals: UL, CUL, FCC
• RoHS Compliant: Yes
• Country of Origin: China

Standard Information

• Brand: KEYSTONE
• Manufacturer Part Number: KTEB-454HO-UV-PS-DP