ETC Emergency Lighting Transfer System ELTS2
Safe, trustworthy load-switching for emergency situations. An Emergency Lighting Transfer System is designed to switch one or more lighting loads from one power source to another during a power failure or other emergency situation. ETC’s rugged ELTS2 construction and fail-safe circuitry are UL 1008-approved for any North American emergency lighting application where life safety is an issue.
Emergency Lighting Transfer System ELTS2. Flexible power requirements and circuit counts let you design the system you want. The ELTS2 allows selected houselights that are normally fed by a dimmer, to provide Code-compliant, full-on emergency illumination during loss of utility power, fire alarm activation, or manual activation. Unlike systems that simply bypass the dimmer, ELTS2 actually transfers the load (both hot and neutral conductors) from the dimmer output to a separate emergency power source. A local control panel that includes a test keyswitch and LED indicators clearly displays system status.
ELTS2 works with new or existing fire-alarm or auxiliary-activation systems. Remote keyswitch stations also give you secure control where you need it.
- UL 1008-compliant, electrically operated, mechanically held (maintained) transfer switches prevent inadvertent connection of the normal and emergency sources
- Single- or Three-phase power: 120/208V, 120/240V, 277/480V
- Optional discrete emergency branch circuit feeds from an external circuit breaker panel (by others) or emergency main feed with built-in branch circuit distribution and overcurrent protection
- Self-contained system for up to 24 circuits at 20 amps
- Large cabinet supports any number of circuits from 2 to 24 in groups of two
- Normal Mode-Connects load to dimmer output
- Emergency Mode–Connects load to emergency branch circuit
- Continuous monitoring and display of Normal and Emergency power status
- Automatically transfers selected loads from Normal power to Emergency power
- Automatically transfers back to Normal power when restored
- Configurable transfer and delay settings
- Remote station, fire alarm and auxiliary circuit activation
- Optional NEMA 4 cabinet for outdoor installation or where unit will be subject to spray from fire suppression systems
- Complies with NEC Section 700.9 (D) (2) for fire protection of Emergency Feeder-Circuit Equipment
- Built-in fuses provide 65,000A Short Circuit Current Rating (SCCR) and insure compliance with NEC Section 700.27 Coordination
- Larger upstream breakers cannot be tripped by downstream branch circuit faults.
Ratings and Approvals
- UL and cUL Listing
- ANSI/UL 1008 Automatic Transfer Switch for use in Emergency Systems (Category code WPWR)
- Complies with ANSI/NFPA 110, Standard for Emergency and Standby Power Systems
- Satisfies requirements of the National Electrical Code (NFPA 70):
- Article 700 – Emergency Systems
- Article 701 – Legally Required Standby Systems
- Article 702 – Optional Standby Systems
- Section 518.3(C)- Assembly Occupancies
- Section 520.7 – Theatres and Similar Locations
- Section 540.11(C) – Motion Picture Projection Rooms
- Seismic certification – International Building Code