Description
Replacement Compact Fluorescent Battery Back Up Ballast with Conduit | 90-Minute Backup | 120/277V
The Keystone KT-EMRG-750-CFL4 /B (replaces KT-EMRG-750-CFL4) is a fluorescent emergency ballast designed to provide 750 lumens of emergency illumination for a minimum of 90 minutes during power failures. This unit is compatible with T5, T8, T12, 4-Pin CFL, Circline, and U-Bend fluorescent lamps, ensuring versatile emergency lighting solutions for commercial and industrial settings. It features a painted steel case with 2 feet of flex conduit, a 2-in-1 LED indicator light with a push-to-test switch, and Time Delay Technology to overcome end-of-life circuit protection in select lamps.
Features
- Output Lumen Rating: 750 lumens
- Input Voltage: 120/277V, 60Hz
- Battery Type: 3.6V Sealed NiCd (Maintenance-Free)
- Emergency Runtime: 90 minutes
- Recharge Time: 24 hours
- Test Switch: 2-in-1 LED indicator and push-to-test switch
- Mounting: Inside, top, or remote mounting (up to 50 feet max distance)
- Case Material: Painted Steel (White Finish)
- Flex Conduit: 2 feet on both ends
- Certifications: UL 924, NFPA 101, NEC, OSHA Compliant
- Warranty: 5-Year Limited Warranty
Benefits
- Operates one or two lamps in emergency mode, ensuring compliance with life safety codes.
- Works with or without an AC ballast, supporting multiple fixture configurations.
- Automatically provides emergency illumination for 90 minutes when AC power fails.
- Compatible with a wide range of fluorescent lamp types, improving installation flexibility.
- Time Delay Technology prevents premature shutdown due to end-of-life circuit protection.
Lamp Compatibility & Initial Lumen Output
Linear Fluorescent
- T5 (14W): 450 lm (1-lamp) | 500 lm (2-lamp)
- T5HO (39W): 650 lm
- T8 (32W): 675 lm
- T12 (40W): 650 lm
Compact Fluorescent & U-Bend
- 4-Pin CFL (18W): 500 lm (1-lamp) | 575 lm (2-lamp)
- 4-Pin Long CFL (18W): 525 lm (1-lamp) | 625 lm (2-lamp)
- T9 Circline (40W): 625 lm
- U-Bend T8 (32W): 650 lm
- U-Bend T12 (34W): 600 lm
Applications
- Commercial emergency lighting – Ideal for office spaces, retail locations, and hotels.
- Industrial safety lighting – Ensures compliance in warehouses and production facilities.
- Educational and healthcare buildings – Emergency lighting for schools, hospitals, and public buildings.
- Multi-use exit and safety lighting – Provides backup for fluorescent-based emergency lighting systems.
Product Specifications
- Max. Output Power: 750 Lumens
- Input Voltage: 120–277V AC
- Battery Type: 3.6V NiCd (Maintenance-Free)
- Emergency Runtime: 90 minutes
- Recharge Time: 24 hours
- Surge Protection: Over-voltage, over-current, and short-circuit protection
- Operating Temperature: 0°C to 55°C (32°F to 131°F)
- Mounting: Inside, top, or remote (up to 50 feet max distance)
- Certifications: UL 924, NFPA 101, NEC, OSHA Compliant
- Warranty: 5-Year Limited Warranty
- Case Material: Painted Steel
- Flex Conduit: 2 feet on both ends
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