ISD420 Emergency Ballast

Self Diagnostic Emergency Ballast for 4-Pin Compact LED Retrofit (TLED) and Fluorescent Luminaires

By IOTA

  • Overview
  • Specifications
The ISD420 from IOTA Engineering is a UL Listed self-diagnostic fluorescent emergency ballast that allows the same fixture to be used for both normal and emergency operation. In the event of a power failure, the ISD420 switches to the emergency mode and operates one of the existing lamps for 90 minutes. The ISD420 will self-test for thirty seconds monthly and for ninety minutes annually and will diagnose potential problems within the light fixture. If problems are encountered, the unit will specify failure of the battery, charging circuit, lamp, or inverter by means of a flashing red indicator.
Initial Lumen Output
  • 1100 Lumens
Lamps Operated
  • Select LED Retrofit Tubes
  • (1) 13W-57W 4-Pin Compact
Features
  • Automatically conducts monthly and annual testing
  • Internal self-diagnostic circuitry tests lamp frequency, battery charge and discharge current
  • AC output for compatibility with low mercury content amalgam lamps
  • Time delay feature for compatibility with end-of-lamp-life circuitry
  • open circuit isolation protects unit when load is absent
  • Long life high temperature recyclable Ni-Cad battery
  • Galvanized steel case
  • Includes single-piece LPTS test switch and dual-color charge indicator
  • For use with switched and unswitched fixtures
  • Lamp selector leads optimize light output for the desired lamp type
  • Suitable for use in damp locations and plenum spaces
  • Meets or exceeds all National Electric Code and Life Safety Code Emergency Lighting Requirements
  • RoHS Compliant
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Product Type Emergency Ballast
Voltage Rating 120-277
Frequency 50/60HZ
Max. Operating Temp. 55
Min. Operating Temp. 0
Battery Run Time 90 min
Battery Chemistry Type NiCd
Battery Recharge Time 24 hours
Battery Activation Unit Connector
Life Safety Testing Self Diagnostics, Self Test
Regulatory Listing C-UL-US, NFPA 101
Compliance Listing ROHS
Environmental Listing Damp Location
Series ISD420

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  • Suggested Replacement Products

Product Information

  • Spec Sheets

    Document Type Document Title Description Updated View
    SPEC SHEET ISD420 Specifications Specification Sheet for ISD420 Models 6/8/2022 View
  • Guideline Specifications

  • Technical Documents (e.g. Instruction Sheets, MSDS, CAD)

    Document Type Document Title Description Updated View
    Installation Instructions A (Dual Flex) Mounting Style Installation Manual for the ISD420 "A" (Dual Flex) Mounting Style 9/24/2019 View
    Material Safety Data Sheet MSDS for nickel-cadmium drivers and ballasts Safety Data Sheet for Ni-Cad emergency battery component 5/12/2021 View
    Wiring Diagram (DWG) One Lamp Rapid Start Ballast - A Mounting Style DWG Format - Connections to a one lamp luminaire with a rapid start ballast - A (Dual Flex) mounting style models 7/10/2020
    Wiring Diagram (DWG) Two Lamp Rapid Start Ballast - A Mounting Style DWG Format - Connections to a two lamp luminaire with a rapid start ballast - A (Dual Flex) mounting style models 7/10/2020
    Wiring Diagram (PDF) One Lamp Rapid Start Ballast - A Mounting Style PDF Format - Connections to a one lamp luminaire with a rapid start ballast - A (Dual Flex) mounting style models 7/10/2020 View
    Wiring Diagram (PDF) Two Lamp Rapid Start Ballast - A Mounting Style PDF Format - Connections to a two lamp luminaire with a rapid start ballast - A (Dual Flex) mounting style models 7/10/2020 View
    Installation Instructions B (Integral) Mounting Style (Discontinued) Installation Manual for the ISD420 "B" (Integral) Mounting Style 9/24/2019 View
    Wiring Diagram (DWG) One Lamp Rapid Start Ballast - B Mounting Style (Discontinued) DWG Format - Connections to a two lamp luminaire with a rapid start ballast - B (Integral) mounting style models 7/10/2020
    Wiring Diagram (DWG) Two Lamp Rapid Start Ballast - B Mounting Style (Discontinued) DWG Format - Connections to a two lamp luminaire with a rapid start ballast - B (Integral) mounting style models 7/10/2020
    Wiring Diagram (PDF) One Lamp Rapid Start Ballast - B Mounting Style (Discontinued) PDF Format - Connections to a two lamp luminaire with a rapid start ballast - B (Integral) mounting style models 7/10/2020 View
    Wiring Diagram (PDF) Two Lamp Rapid Start Ballast - B Mounting Style (Discontinued) PDF Format - Connections to a two lamp luminaire with a rapid start ballast - B (Integral) mounting style models 7/10/2020 View
  • BIM Models (Revit)

  • Utility Rebate Search

  • Replacement Parts

  • Confidential Documents

  • Marketing Material (e.g. Brochures, Sell Sheets, FAQs, )

    Document Type Document Title Description Updated View
    Sell Sheet IOTA Contractor Insider_LED-Retrofit_A and C.pdf Using IOTA Emergency Drivers and Series AC Emergency Ballasts for LED Retrofit projects 3/9/2021 View
  • Need Product Assistance? (e.g. How to Buy, Technical Support, Warranty)

    How to Buy

    The IOTA products are primarily sold through a network of agents and distributors across North America.

    •  Find an Agent or Distributor

    •  Request a Call


    Technical Support

    The IOTA technical team is dedicated to providing outstanding product support. Please click on the appropriate link below,
    or feel free to call us at 855.363.9527.

    •  FAQs

    •  Technical Library

    •  Email Us


    Warranty

    Please click on the appropriate link below to learn more about IOTA terms & conditions and product warranty options. 

    •  IOTA Emergency Products with Batteries

    •  IOTA Emergency Control (ALCR) Devices

    •  IOTA DLS Battery Chargers and Power Converters

    •  IOTA Warranty Replacements & Stock Returns


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