ISL540 Emergency Ballast - Slim Profile

The IOTA ISL540 is a slim-profile, high-output emergency ballast designed for T5, T8, and long compact fluorescent lamps, delivering up to 1300 lumens for 90 minutes of backup lighting. Its narrow 1.18-inch galvanized steel housing allows installation in tight ballast compartments, while universal 120/277VAC input ensures broad voltage compatibility. AC output supports LED retrofit tubes and low-mercury amalgam lamps, making it a versatile solution for plenum-rated, damp, and enclosed fixtures in commercial and architectural applications.

Equipped with a long-life Ni-Cad battery, the ISL540 provides reliable 24-hour recharge and 7–10 years of operational life. Features such as time delay circuitry and open circuit isolation protect both the lamp and battery, while a built-in test switch with LED charge indicator simplifies maintenance and inspection. UL and CUL listings, combined with compliance to NEC, IBC, and NFPA 101 emergency lighting codes, make the ISL540 a dependable choice for ensuring code-compliant emergency illumination in tight or challenging fixture spaces.

Key Features and Benefits:

• High Emergency Output: Provides up to 1300 lumens for 90 minutes during power outages.

• Slim-Profile Housing: Only 1.18” wide, ideal for T5, T8, long CFL, and LED retrofit fixtures with limited ballast space.

• Dual Voltage Input: Compatible with 120/277VAC, 60Hz systems for flexible installation.

• AC Output for Lamp and LED Compatibility: Works with low-mercury amalgam lamps and select LED retrofit tubes.

• Integrated Test Switch and LED Indicator: Simplifies maintenance, testing, and ensures code compliance.