The IOTA® ILD 15 is a Constant Power Emergency LED Driver designed to maintain consistent light output for a minimum of 90 minutes during power outages. It operates as a UL 924 Listed, Class 2 compliant emergency driver that enables a single LED fixture to function seamlessly in both normal and emergency conditions. When normal AC power is interrupted, the ILD 15 automatically switches from the fixture’s main driver to its internal battery supply, sustaining an LED load of 15 watts within a voltage range of 15–55VDC. The driver’s constant power design ensures that illumination levels remain uniform throughout the full emergency runtime, even as system voltage declines.
This unit incorporates an integrated lithium iron-phosphate battery, charger, and converter circuit within a narrow-profile, brick-style enclosure that significantly reduces its mounting footprint. The compact form factor allows installation within luminaire channel spaces, wireways, or plenums. Its lithium battery technology provides long life expectancy—typically between five and seven years—and enables a 24-hour recharge cycle following a discharge. The ILD 15 is UL Listed and Classified to FTBR (U.S.) and FTBR7 (Canada), compliant with UL 1310 Class 2 standards, and certified under CA Title 20 for appliance efficiency. It also meets or exceeds NEC, IBC, and NFPA Life Safety Code emergency lighting requirements.
To simplify installation and maintenance, the ILD 15 integrates AC Activate circuitry, which eliminates the need for manual battery connection during setup, and includes a Quick Disconnect harness with flying leads for easy field servicing or fixture integration. The unit’s single-piece, IP67-rated stainless steel test switch combines a charge indicator and diagnostic light for streamlined functionality. The system supports both switched and unswitched luminaires and is suitable for IC-rated recessed, plenum, and damp location applications.
For system reliability and compliance with NFPA 101 testing requirements, the ILD 15 incorporates self-diagnostic and self-testing capabilities that perform automatic monthly and annual checks. Visual indicators provide clear feedback on system readiness and fault conditions. Its constant wattage output ensures that LED illumination does not degrade over time during emergency operation, maintaining visibility and safety standards across the entire runtime.
Built for durability and electrical integrity, the ILD 15 includes surge protection compliant with ANSI/IEEE C62.41.2-2002 and meets FCC commercial EMI limits. It operates within a universal input voltage range of 120–277VAC at 50/60Hz with a maximum input current of 30mA. The output current ranges from 1.0A at 15VDC to 0.27A at 55VDC, maintaining a steady 15W constant output. The driver performs reliably within an ambient temperature range of 0°C to 55°C and has a total weight of approximately 1.35 lbs.
Overall, the IOTA ILD 15 combines intelligent circuitry, compact design, and robust compliance to deliver a dependable, field-serviceable emergency power solution. Its UL and CSA certifications, RoHS compliance, and five-year warranty underscore its quality and suitability for a wide range of commercial and architectural lighting applications.
https://www.iotaengineering.com/products/detail/2137035/iota/ild-15w/constant-power-emergency-driver-class-2-output-with-quick-disconnect-harness-with-flying-leads
